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 com20020_pci_channel_map *cm;
  67         struct com20020_pci_card_info *ci;
  68         struct net_device *dev;
  69         struct arcnet_local *lp;
  70         int ioaddr, err;
  71
  72         if (pci_enable_device(pdev))
  73                 return -EIO;
  74         dev = alloc_arcdev(device);
  75         if (!dev)
  76                 return -ENOMEM;
  77
  78         dev->netdev_ops = &com20020_netdev_ops;
  79
  80         ci = (struct com20020_pci_card_info *)id->driver_data;
  81
  82         lp = netdev_priv(dev);
  83
  84         pci_set_drvdata(pdev, dev);
  85
  86         cm = &ci->chan_map_tbl[0];
  87         BUGMSG(D_NORMAL, "%s Controls\n", ci->name);
  88         ioaddr = pci_resource_start(pdev, cm->bar);
  89
  90         if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) {
  91                 BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
  92                        ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
  93                 err = -EBUSY;
  94                 goto out_dev;
  95         }
  96
  97         // Dummy access after Reset
  98         // ARCNET controller needs this access to detect bustype
  99         outb(0x00,ioaddr+1);
 100         inb(ioaddr+1);
 101
 102         dev->base_addr = ioaddr;
 103         dev->irq = pdev->irq;
 104         dev->dev_addr[0] = node;
 105         lp->card_name = "PCI COM20020";
 106         lp->card_flags = ci->flags;
 107         lp->backplane = backplane;
 108         lp->clockp = clockp & 7;
 109         lp->clockm = clockm & 3;
 110         lp->timeout = timeout;
 111         lp->hw.owner = THIS_MODULE;
 112
 113         if (ASTATUS() == 0xFF) {
 114                 BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
 115                        "but seems empty!\n", ioaddr);
 116                 err = -EIO;
 117                 goto out_port;
 118         }
 119         if (com20020_check(dev)) {
 120                 err = -EIO;
 121                 goto out_port;
 122         }
 123
 124         if ((err = com20020_found(dev, IRQF_SHARED)) != 0)
 125                 goto out_port;
 126
 127         return 0;
 128
 129 out_port:
 130         release_region(ioaddr, ARCNET_TOTAL_SIZE);
 131 out_dev:
 132         free_netdev(dev);
 133         return err;
 134 }
 135
 136 static void com20020pci_remove(struct pci_dev *pdev)
 137 {
 138         struct net_device *dev = pci_get_drvdata(pdev);
 139         unregister_netdev(dev);
 140         free_irq(dev->irq, dev);
 141         release_region(dev->base_addr, ARCNET_TOTAL_SIZE);
 142         free_netdev(dev);
 143 }
 144
 145 static struct com20020_pci_card_info card_info_10mbit = {
 146         .name = "ARC-PCI",
 147         .devcount = 1,
 148         .chan_map_tbl = {
 149                 { 2, 0x00, 0x08 },
 150         },
 151         .flags = ARC_CAN_10MBIT,
 152 };
 153
 154 static struct com20020_pci_card_info card_info_5mbit = {
 155         .name = "ARC-PCI",
 156         .devcount = 1,
 157         .chan_map_tbl = {
 158                 { 2, 0x00, 0x08 },
 159         },
 160         .flags = ARC_IS_5MBIT,
 161 };
 162
 163 static struct com20020_pci_card_info card_info_sohard = {
 164         .name = "PLX-PCI",
 165         .devcount = 1,
 166         /* SOHARD needs PCI base addr 4 */
 167         .chan_map_tbl = {
 168                 {4, 0x00, 0x08},
 169         },
 170         .flags = ARC_CAN_10MBIT,
 171 };
 172
 173 static const struct pci_device_id com20020pci_id_table[] = {
 174         {
 175                 0x1571, 0xa001,
 176                 PCI_ANY_ID, PCI_ANY_ID,
 177                 0, 0,
 178                 0,
 179         },
 180         {
 181                 0x1571, 0xa002,
 182                 PCI_ANY_ID, PCI_ANY_ID,
 183                 0, 0,
 184                 0,
 185         },
 186         {
 187                 0x1571, 0xa003,
 188                 PCI_ANY_ID, PCI_ANY_ID,
 189                 0, 0,
 190                 0
 191         },
 192         {
 193                 0x1571, 0xa004,
 194                 PCI_ANY_ID, PCI_ANY_ID,
 195                 0, 0,
 196                 0,
 197         },
 198         {
 199                 0x1571, 0xa005,
 200                 PCI_ANY_ID, PCI_ANY_ID,
 201                 0, 0,
 202                 0
 203         },
 204         {
 205                 0x1571, 0xa006,
 206                 PCI_ANY_ID, PCI_ANY_ID,
 207                 0, 0,
 208                 0
 209         },
 210         {
 211                 0x1571, 0xa007,
 212                 PCI_ANY_ID, PCI_ANY_ID,
 213                 0, 0,
 214                 0
 215         },
 216         {
 217                 0x1571, 0xa008,
 218                 PCI_ANY_ID, PCI_ANY_ID,
 219                 0, 0,
 220                 0
 221         },
 222         {
 223                 0x1571, 0xa009,
 224                 PCI_ANY_ID, PCI_ANY_ID,
 225                 0, 0,
 226                 (kernel_ulong_t)&card_info_5mbit
 227         },
 228         {
 229                 0x1571, 0xa00a,
 230                 PCI_ANY_ID, PCI_ANY_ID,
 231                 0, 0,
 232                 (kernel_ulong_t)&card_info_5mbit
 233         },
 234         {
 235                 0x1571, 0xa00b,
 236                 PCI_ANY_ID, PCI_ANY_ID,
 237                 0, 0,
 238                 (kernel_ulong_t)&card_info_5mbit
 239         },
 240         {
 241                 0x1571, 0xa00c,
 242                 PCI_ANY_ID, PCI_ANY_ID,
 243                 0, 0,
 244                 (kernel_ulong_t)&card_info_5mbit
 245         },
 246         {
 247                 0x1571, 0xa00d,
 248                 PCI_ANY_ID, PCI_ANY_ID,
 249                 0, 0,
 250                 (kernel_ulong_t)&card_info_5mbit
 251         },
 252         {
 253                 0x1571, 0xa00e,
 254                 PCI_ANY_ID, PCI_ANY_ID,
 255                 0, 0,
 256                 (kernel_ulong_t)&card_info_5mbit
 257         },
 258         {
 259                 0x1571, 0xa201,
 260                 PCI_ANY_ID, PCI_ANY_ID,
 261                 0, 0,
 262                 (kernel_ulong_t)&card_info_10mbit
 263         },
 264         {
 265                 0x1571, 0xa202,
 266                 PCI_ANY_ID, PCI_ANY_ID,
 267                 0, 0,
 268                 (kernel_ulong_t)&card_info_10mbit
 269         },
 270         {
 271                 0x1571, 0xa203,
 272                 PCI_ANY_ID, PCI_ANY_ID,
 273                 0, 0,
 274                 (kernel_ulong_t)&card_info_10mbit
 275         },
 276         {
 277                 0x1571, 0xa204,
 278                 PCI_ANY_ID, PCI_ANY_ID,
 279                 0, 0,
 280                 (kernel_ulong_t)&card_info_10mbit
 281         },
 282         {
 283                 0x1571, 0xa205,
 284                 PCI_ANY_ID, PCI_ANY_ID,
 285                 0, 0,
 286                 (kernel_ulong_t)&card_info_10mbit
 287         },
 288         {
 289                 0x1571, 0xa206,
 290                 PCI_ANY_ID, PCI_ANY_ID,
 291                 0, 0,
 292                 (kernel_ulong_t)&card_info_10mbit
 293         },
 294         {
 295                 0x10B5, 0x9030,
 296                 0x10B5, 0x2978,
 297                 0, 0,
 298                 (kernel_ulong_t)&card_info_sohard
 299         },
 300         {
 301                 0x10B5, 0x9050,
 302                 0x10B5, 0x2273,
 303                 0, 0,
 304                 (kernel_ulong_t)&card_info_sohard
 305         },
 306         {
 307                 0x14BA, 0x6000,
 308                 PCI_ANY_ID, PCI_ANY_ID,
 309                 0, 0,
 310                 (kernel_ulong_t)&card_info_10mbit
 311         },
 312         {
 313                 0x10B5, 0x2200,
 314                 PCI_ANY_ID, PCI_ANY_ID,
 315                 0, 0,
 316                 (kernel_ulong_t)&card_info_10mbit
 317         },
 318         { 0, }
 319 };
 320
 321 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
 322
 323 static struct pci_driver com20020pci_driver = {
 324         .name           = "com20020",
 325         .id_table       = com20020pci_id_table,
 326         .probe          = com20020pci_probe,
 327         .remove         = com20020pci_remove,
 328 };
 329
 330 static int __init com20020pci_init(void)
 331 {
 332         BUGLVL(D_NORMAL) printk(VERSION);
 333         return pci_register_driver(&com20020pci_driver);
 334 }
 335
 336 static void __exit com20020pci_cleanup(void)
 337 {
 338         pci_unregister_driver(&com20020pci_driver);
 339 }
 340
 341 module_init(com20020pci_init)
 342 module_exit(com20020pci_cleanup)