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 #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 void com20020pci_remove(struct pci_dev *pdev);
  65
  66 static int com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
  67 {
  68         struct com20020_pci_card_info *ci;
  69         struct net_device *dev;
  70         struct arcnet_local *lp;
  71         struct com20020_priv *priv;
  72         int i, ioaddr, ret;
  73         struct resource *r;
  74
  75         if (pci_enable_device(pdev))
  76                 return -EIO;
  77
  78         priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
  79                             GFP_KERNEL);
  80         if (!priv)
  81                 return -ENOMEM;
  82
  83         ci = (struct com20020_pci_card_info *)id->driver_data;
  84         priv->ci = ci;
  85
  86         INIT_LIST_HEAD(&priv->list_dev);
  87
  88         for (i = 0; i < ci->devcount; i++) {
  89                 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
  90                 struct com20020_dev *card;
  91
  92                 dev = alloc_arcdev(device);
  93                 if (!dev) {
  94                         ret = -ENOMEM;
  95                         goto out_port;
  96                 }
  97
  98                 dev->netdev_ops = &com20020_netdev_ops;
  99
 100                 lp = netdev_priv(dev);
 101
 102                 BUGMSG(D_NORMAL, "%s Controls\n", ci->name);
 103                 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
 104
 105                 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
 106                                         "com20020-pci");
 107                 if (!r) {
 108                         pr_err("IO region %xh-%xh already allocated.\n",
 109                                ioaddr, ioaddr + cm->size - 1);
 110                         ret = -EBUSY;
 111                         goto out_port;
 112                 }
 113
 114                 /* Dummy access after Reset
 115                  * ARCNET controller needs
 116                  * this access to detect bustype
 117                  */
 118                 outb(0x00, ioaddr + 1);
 119                 inb(ioaddr + 1);
 120
 121                 dev->base_addr = ioaddr;
 122                 dev->dev_addr[0] = node;
 123                 dev->irq = pdev->irq;
 124                 lp->card_name = "PCI COM20020";
 125                 lp->card_flags = ci->flags;
 126                 lp->backplane = backplane;
 127                 lp->clockp = clockp & 7;
 128                 lp->clockm = clockm & 3;
 129                 lp->timeout = timeout;
 130                 lp->hw.owner = THIS_MODULE;
 131
 132                 if (ASTATUS() == 0xFF) {
 133                         pr_err("IO address %Xh is empty!\n", ioaddr);
 134                         ret = -EIO;
 135                         goto out_port;
 136                 }
 137                 if (com20020_check(dev)) {
 138                         ret = -EIO;
 139                         goto out_port;
 140                 }
 141
 142                 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
 143                                     GFP_KERNEL);
 144                 if (!card) {
 145                         pr_err("%s out of memory!\n", __func__);
 146                         return -ENOMEM;
 147                 }
 148
 149                 card->index = i;
 150                 card->pci_priv = priv;
 151                 card->dev = dev;
 152
 153                 dev_set_drvdata(&dev->dev, card);
 154
 155                 ret = com20020_found(dev, IRQF_SHARED);
 156                 if (ret)
 157                         goto out_port;
 158
 159                 list_add(&card->list, &priv->list_dev);
 160         }
 161
 162         pci_set_drvdata(pdev, priv);
 163
 164         return 0;
 165
 166 out_port:
 167         com20020pci_remove(pdev);
 168         return ret;
 169 }
 170
 171 static void com20020pci_remove(struct pci_dev *pdev)
 172 {
 173         struct com20020_dev *card, *tmpcard;
 174         struct com20020_priv *priv;
 175
 176         priv = pci_get_drvdata(pdev);
 177
 178         list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
 179                 struct net_device *dev = card->dev;
 180
 181                 unregister_netdev(dev);
 182                 free_irq(dev->irq, dev);
 183                 free_netdev(dev);
 184         }
 185 }
 186
 187 static struct com20020_pci_card_info card_info_10mbit = {
 188         .name = "ARC-PCI",
 189         .devcount = 1,
 190         .chan_map_tbl = {
 191                 { 2, 0x00, 0x08 },
 192         },
 193         .flags = ARC_CAN_10MBIT,
 194 };
 195
 196 static struct com20020_pci_card_info card_info_5mbit = {
 197         .name = "ARC-PCI",
 198         .devcount = 1,
 199         .chan_map_tbl = {
 200                 { 2, 0x00, 0x08 },
 201         },
 202         .flags = ARC_IS_5MBIT,
 203 };
 204
 205 static struct com20020_pci_card_info card_info_sohard = {
 206         .name = "PLX-PCI",
 207         .devcount = 1,
 208         /* SOHARD needs PCI base addr 4 */
 209         .chan_map_tbl = {
 210                 {4, 0x00, 0x08},
 211         },
 212         .flags = ARC_CAN_10MBIT,
 213 };
 214
 215 static struct com20020_pci_card_info card_info_eae_arc1 = {
 216         .name = "EAE PLX-PCI ARC1",
 217         .devcount = 1,
 218         .chan_map_tbl = {
 219                 { 2, 0x00, 0x08 },
 220         },
 221         .flags = ARC_CAN_10MBIT,
 222 };
 223
 224 static struct com20020_pci_card_info card_info_eae_ma1 = {
 225         .name = "EAE PLX-PCI MA1",
 226         .devcount = 2,
 227         .chan_map_tbl = {
 228                 { 2, 0x00, 0x08 },
 229                 { 2, 0x08, 0x08 }
 230         },
 231         .flags = ARC_CAN_10MBIT,
 232 };
 233
 234 static const struct pci_device_id com20020pci_id_table[] = {
 235         {
 236                 0x1571, 0xa001,
 237                 PCI_ANY_ID, PCI_ANY_ID,
 238                 0, 0,
 239                 0,
 240         },
 241         {
 242                 0x1571, 0xa002,
 243                 PCI_ANY_ID, PCI_ANY_ID,
 244                 0, 0,
 245                 0,
 246         },
 247         {
 248                 0x1571, 0xa003,
 249                 PCI_ANY_ID, PCI_ANY_ID,
 250                 0, 0,
 251                 0
 252         },
 253         {
 254                 0x1571, 0xa004,
 255                 PCI_ANY_ID, PCI_ANY_ID,
 256                 0, 0,
 257                 0,
 258         },
 259         {
 260                 0x1571, 0xa005,
 261                 PCI_ANY_ID, PCI_ANY_ID,
 262                 0, 0,
 263                 0
 264         },
 265         {
 266                 0x1571, 0xa006,
 267                 PCI_ANY_ID, PCI_ANY_ID,
 268                 0, 0,
 269                 0
 270         },
 271         {
 272                 0x1571, 0xa007,
 273                 PCI_ANY_ID, PCI_ANY_ID,
 274                 0, 0,
 275                 0
 276         },
 277         {
 278                 0x1571, 0xa008,
 279                 PCI_ANY_ID, PCI_ANY_ID,
 280                 0, 0,
 281                 0
 282         },
 283         {
 284                 0x1571, 0xa009,
 285                 PCI_ANY_ID, PCI_ANY_ID,
 286                 0, 0,
 287                 (kernel_ulong_t)&card_info_5mbit
 288         },
 289         {
 290                 0x1571, 0xa00a,
 291                 PCI_ANY_ID, PCI_ANY_ID,
 292                 0, 0,
 293                 (kernel_ulong_t)&card_info_5mbit
 294         },
 295         {
 296                 0x1571, 0xa00b,
 297                 PCI_ANY_ID, PCI_ANY_ID,
 298                 0, 0,
 299                 (kernel_ulong_t)&card_info_5mbit
 300         },
 301         {
 302                 0x1571, 0xa00c,
 303                 PCI_ANY_ID, PCI_ANY_ID,
 304                 0, 0,
 305                 (kernel_ulong_t)&card_info_5mbit
 306         },
 307         {
 308                 0x1571, 0xa00d,
 309                 PCI_ANY_ID, PCI_ANY_ID,
 310                 0, 0,
 311                 (kernel_ulong_t)&card_info_5mbit
 312         },
 313         {
 314                 0x1571, 0xa00e,
 315                 PCI_ANY_ID, PCI_ANY_ID,
 316                 0, 0,
 317                 (kernel_ulong_t)&card_info_5mbit
 318         },
 319         {
 320                 0x1571, 0xa201,
 321                 PCI_ANY_ID, PCI_ANY_ID,
 322                 0, 0,
 323                 (kernel_ulong_t)&card_info_10mbit
 324         },
 325         {
 326                 0x1571, 0xa202,
 327                 PCI_ANY_ID, PCI_ANY_ID,
 328                 0, 0,
 329                 (kernel_ulong_t)&card_info_10mbit
 330         },
 331         {
 332                 0x1571, 0xa203,
 333                 PCI_ANY_ID, PCI_ANY_ID,
 334                 0, 0,
 335                 (kernel_ulong_t)&card_info_10mbit
 336         },
 337         {
 338                 0x1571, 0xa204,
 339                 PCI_ANY_ID, PCI_ANY_ID,
 340                 0, 0,
 341                 (kernel_ulong_t)&card_info_10mbit
 342         },
 343         {
 344                 0x1571, 0xa205,
 345                 PCI_ANY_ID, PCI_ANY_ID,
 346                 0, 0,
 347                 (kernel_ulong_t)&card_info_10mbit
 348         },
 349         {
 350                 0x1571, 0xa206,
 351                 PCI_ANY_ID, PCI_ANY_ID,
 352                 0, 0,
 353                 (kernel_ulong_t)&card_info_10mbit
 354         },
 355         {
 356                 0x10B5, 0x9030,
 357                 0x10B5, 0x2978,
 358                 0, 0,
 359                 (kernel_ulong_t)&card_info_sohard
 360         },
 361         {
 362                 0x10B5, 0x9050,
 363                 0x10B5, 0x2273,
 364                 0, 0,
 365                 (kernel_ulong_t)&card_info_sohard
 366         },
 367         {
 368                 0x10B5, 0x9050,
 369                 0x10B5, 0x3263,
 370                 0, 0,
 371                 (kernel_ulong_t)&card_info_eae_arc1
 372         },
 373         {
 374                 0x10B5, 0x9050,
 375                 0x10B5, 0x3292,
 376                 0, 0,
 377                 (kernel_ulong_t)&card_info_eae_ma1
 378         },
 379         {
 380                 0x14BA, 0x6000,
 381                 PCI_ANY_ID, PCI_ANY_ID,
 382                 0, 0,
 383                 (kernel_ulong_t)&card_info_10mbit
 384         },
 385         {
 386                 0x10B5, 0x2200,
 387                 PCI_ANY_ID, PCI_ANY_ID,
 388                 0, 0,
 389                 (kernel_ulong_t)&card_info_10mbit
 390         },
 391         { 0, }
 392 };
 393
 394 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
 395
 396 static struct pci_driver com20020pci_driver = {
 397         .name           = "com20020",
 398         .id_table       = com20020pci_id_table,
 399         .probe          = com20020pci_probe,
 400         .remove         = com20020pci_remove,
 401 };
 402
 403 static int __init com20020pci_init(void)
 404 {
 405         BUGLVL(D_NORMAL) printk(VERSION);
 406         return pci_register_driver(&com20020pci_driver);
 407 }
 408
 409 static void __exit com20020pci_cleanup(void)
 410 {
 411         pci_unregister_driver(&com20020pci_driver);
 412 }
 413
 414 module_init(com20020pci_init)
 415 module_exit(com20020pci_cleanup)