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