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 #include <linux/list.h>
  42
  43 #include <asm/io.h>
  44
  45
  46 #define VERSION "arcnet: COM20020 PCI support\n"
  47
  48 /* Module parameters */
  49
  50 static int node;
  51 static char device[9];          /* use eg. device="arc1" to change name */
  52 static int timeout = 3;
  53 static int backplane;
  54 static int clockp;
  55 static int clockm;
  56
  57 module_param(node, int, 0);
  58 module_param_string(device, device, sizeof(device), 0);
  59 module_param(timeout, int, 0);
  60 module_param(backplane, int, 0);
  61 module_param(clockp, int, 0);
  62 module_param(clockm, int, 0);
  63 MODULE_LICENSE("GPL");
  64
  65 static void com20020pci_remove(struct pci_dev *pdev);
  66
  67 static int com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
  68 {
  69         struct com20020_pci_card_info *ci;
  70         struct net_device *dev;
  71         struct arcnet_local *lp;
  72         struct com20020_priv *priv;
  73         int i, ioaddr, ret;
  74         struct resource *r;
  75
  76         if (pci_enable_device(pdev))
  77                 return -EIO;
  78
  79         priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
  80                             GFP_KERNEL);
  81         ci = (struct com20020_pci_card_info *)id->driver_data;
  82         priv->ci = ci;
  83
  84         INIT_LIST_HEAD(&priv->list_dev);
  85
  86
  87         for (i = 0; i < ci->devcount; i++) {
  88                 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
  89                 struct com20020_dev *card;
  90
  91                 dev = alloc_arcdev(device);
  92                 if (!dev) {
  93                         ret = -ENOMEM;
  94                         goto out_port;
  95                 }
  96
  97                 dev->netdev_ops = &com20020_netdev_ops;
  98
  99                 lp = netdev_priv(dev);
 100
 101                 BUGMSG(D_NORMAL, "%s Controls\n", ci->name);
 102                 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
 103
 104                 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
 105                                         "com20020-pci");
 106                 if (!r) {
 107                         pr_err("IO region %xh-%xh already allocated.\n",
 108                                ioaddr, ioaddr + cm->size - 1);
 109                         ret = -EBUSY;
 110                         goto out_port;
 111                 }
 112
 113                 /* Dummy access after Reset
 114                  * ARCNET controller needs
 115                  * this access to detect bustype
 116                  */
 117                 outb(0x00, ioaddr + 1);
 118                 inb(ioaddr + 1);
 119
 120                 dev->base_addr = ioaddr;
 121                 dev->dev_addr[0] = node;
 122                 dev->irq = pdev->irq;
 123                 lp->card_name = "PCI COM20020";
 124                 lp->card_flags = ci->flags;
 125                 lp->backplane = backplane;
 126                 lp->clockp = clockp & 7;
 127                 lp->clockm = clockm & 3;
 128                 lp->timeout = timeout;
 129                 lp->hw.owner = THIS_MODULE;
 130
 131                 if (ASTATUS() == 0xFF) {
 132                         pr_err("IO address %Xh is empty!\n", ioaddr);
 133                         ret = -EIO;
 134                         goto out_port;
 135                 }
 136                 if (com20020_check(dev)) {
 137                         ret = -EIO;
 138                         goto out_port;
 139                 }
 140
 141                 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
 142                                     GFP_KERNEL);
 143                 if (!card) {
 144                         pr_err("%s out of memory!\n", __func__);
 145                         return -ENOMEM;
 146                 }
 147
 148                 card->index = i;
 149                 card->pci_priv = priv;
 150                 card->dev = dev;
 151
 152                 dev_set_drvdata(&dev->dev, card);
 153
 154                 ret = com20020_found(dev, IRQF_SHARED);
 155                 if (ret)
 156                         goto out_port;
 157
 158                 list_add(&card->list, &priv->list_dev);
 159         }
 160
 161         pci_set_drvdata(pdev, priv);
 162
 163         return 0;
 164
 165 out_port:
 166         com20020pci_remove(pdev);
 167         return ret;
 168 }
 169
 170 static void com20020pci_remove(struct pci_dev *pdev)
 171 {
 172         struct com20020_dev *card, *tmpcard;
 173         struct com20020_priv *priv;
 174
 175         priv = pci_get_drvdata(pdev);
 176
 177         list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
 178                 struct net_device *dev = card->dev;
 179
 180                 unregister_netdev(dev);
 181                 free_irq(dev->irq, dev);
 182                 free_netdev(dev);
 183         }
 184 }
 185
 186 static struct com20020_pci_card_info card_info_10mbit = {
 187         .name = "ARC-PCI",
 188         .devcount = 1,
 189         .chan_map_tbl = {
 190                 { 2, 0x00, 0x08 },
 191         },
 192         .flags = ARC_CAN_10MBIT,
 193 };
 194
 195 static struct com20020_pci_card_info card_info_5mbit = {
 196         .name = "ARC-PCI",
 197         .devcount = 1,
 198         .chan_map_tbl = {
 199                 { 2, 0x00, 0x08 },
 200         },
 201         .flags = ARC_IS_5MBIT,
 202 };
 203
 204 static struct com20020_pci_card_info card_info_sohard = {
 205         .name = "PLX-PCI",
 206         .devcount = 1,
 207         /* SOHARD needs PCI base addr 4 */
 208         .chan_map_tbl = {
 209                 {4, 0x00, 0x08},
 210         },
 211         .flags = ARC_CAN_10MBIT,
 212 };
 213
 214 static struct com20020_pci_card_info card_info_eae = {
 215         .name = "EAE PLX-PCI",
 216         .devcount = 2,
 217         .chan_map_tbl = {
 218                 { 2, 0x00, 0x08 },
 219                 { 2, 0x08, 0x08 }
 220         },
 221         .flags = ARC_CAN_10MBIT,
 222 };
 223
 224 static const struct pci_device_id com20020pci_id_table[] = {
 225         {
 226                 0x1571, 0xa001,
 227                 PCI_ANY_ID, PCI_ANY_ID,
 228                 0, 0,
 229                 0,
 230         },
 231         {
 232                 0x1571, 0xa002,
 233                 PCI_ANY_ID, PCI_ANY_ID,
 234                 0, 0,
 235                 0,
 236         },
 237         {
 238                 0x1571, 0xa003,
 239                 PCI_ANY_ID, PCI_ANY_ID,
 240                 0, 0,
 241                 0
 242         },
 243         {
 244                 0x1571, 0xa004,
 245                 PCI_ANY_ID, PCI_ANY_ID,
 246                 0, 0,
 247                 0,
 248         },
 249         {
 250                 0x1571, 0xa005,
 251                 PCI_ANY_ID, PCI_ANY_ID,
 252                 0, 0,
 253                 0
 254         },
 255         {
 256                 0x1571, 0xa006,
 257                 PCI_ANY_ID, PCI_ANY_ID,
 258                 0, 0,
 259                 0
 260         },
 261         {
 262                 0x1571, 0xa007,
 263                 PCI_ANY_ID, PCI_ANY_ID,
 264                 0, 0,
 265                 0
 266         },
 267         {
 268                 0x1571, 0xa008,
 269                 PCI_ANY_ID, PCI_ANY_ID,
 270                 0, 0,
 271                 0
 272         },
 273         {
 274                 0x1571, 0xa009,
 275                 PCI_ANY_ID, PCI_ANY_ID,
 276                 0, 0,
 277                 (kernel_ulong_t)&card_info_5mbit
 278         },
 279         {
 280                 0x1571, 0xa00a,
 281                 PCI_ANY_ID, PCI_ANY_ID,
 282                 0, 0,
 283                 (kernel_ulong_t)&card_info_5mbit
 284         },
 285         {
 286                 0x1571, 0xa00b,
 287                 PCI_ANY_ID, PCI_ANY_ID,
 288                 0, 0,
 289                 (kernel_ulong_t)&card_info_5mbit
 290         },
 291         {
 292                 0x1571, 0xa00c,
 293                 PCI_ANY_ID, PCI_ANY_ID,
 294                 0, 0,
 295                 (kernel_ulong_t)&card_info_5mbit
 296         },
 297         {
 298                 0x1571, 0xa00d,
 299                 PCI_ANY_ID, PCI_ANY_ID,
 300                 0, 0,
 301                 (kernel_ulong_t)&card_info_5mbit
 302         },
 303         {
 304                 0x1571, 0xa00e,
 305                 PCI_ANY_ID, PCI_ANY_ID,
 306                 0, 0,
 307                 (kernel_ulong_t)&card_info_5mbit
 308         },
 309         {
 310                 0x1571, 0xa201,
 311                 PCI_ANY_ID, PCI_ANY_ID,
 312                 0, 0,
 313                 (kernel_ulong_t)&card_info_10mbit
 314         },
 315         {
 316                 0x1571, 0xa202,
 317                 PCI_ANY_ID, PCI_ANY_ID,
 318                 0, 0,
 319                 (kernel_ulong_t)&card_info_10mbit
 320         },
 321         {
 322                 0x1571, 0xa203,
 323                 PCI_ANY_ID, PCI_ANY_ID,
 324                 0, 0,
 325                 (kernel_ulong_t)&card_info_10mbit
 326         },
 327         {
 328                 0x1571, 0xa204,
 329                 PCI_ANY_ID, PCI_ANY_ID,
 330                 0, 0,
 331                 (kernel_ulong_t)&card_info_10mbit
 332         },
 333         {
 334                 0x1571, 0xa205,
 335                 PCI_ANY_ID, PCI_ANY_ID,
 336                 0, 0,
 337                 (kernel_ulong_t)&card_info_10mbit
 338         },
 339         {
 340                 0x1571, 0xa206,
 341                 PCI_ANY_ID, PCI_ANY_ID,
 342                 0, 0,
 343                 (kernel_ulong_t)&card_info_10mbit
 344         },
 345         {
 346                 0x10B5, 0x9030,
 347                 0x10B5, 0x2978,
 348                 0, 0,
 349                 (kernel_ulong_t)&card_info_sohard
 350         },
 351         {
 352                 0x10B5, 0x9050,
 353                 0x10B5, 0x2273,
 354                 0, 0,
 355                 (kernel_ulong_t)&card_info_sohard
 356         },
 357         {
 358                 0x10B5, 0x9050,
 359                 0x10B5, 0x3292,
 360                 0, 0,
 361                 (kernel_ulong_t)&card_info_eae
 362         },
 363         {
 364                 0x14BA, 0x6000,
 365                 PCI_ANY_ID, PCI_ANY_ID,
 366                 0, 0,
 367                 (kernel_ulong_t)&card_info_10mbit
 368         },
 369         {
 370                 0x10B5, 0x2200,
 371                 PCI_ANY_ID, PCI_ANY_ID,
 372                 0, 0,
 373                 (kernel_ulong_t)&card_info_10mbit
 374         },
 375         { 0, }
 376 };
 377
 378 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
 379
 380 static struct pci_driver com20020pci_driver = {
 381         .name           = "com20020",
 382         .id_table       = com20020pci_id_table,
 383         .probe          = com20020pci_probe,
 384         .remove         = com20020pci_remove,
 385 };
 386
 387 static int __init com20020pci_init(void)
 388 {
 389         BUGLVL(D_NORMAL) printk(VERSION);
 390         return pci_register_driver(&com20020pci_driver);
 391 }
 392
 393 static void __exit com20020pci_cleanup(void)
 394 {
 395         pci_unregister_driver(&com20020pci_driver);
 396 }
 397
 398 module_init(com20020pci_init)
 399 module_exit(com20020pci_cleanup)