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
  30 #define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
  31
  32 #include <linux/module.h>
  33 #include <linux/moduleparam.h>
  34 #include <linux/kernel.h>
  35 #include <linux/types.h>
  36 #include <linux/ioport.h>
  37 #include <linux/errno.h>
  38 #include <linux/netdevice.h>
  39 #include <linux/init.h>
  40 #include <linux/interrupt.h>
  41 #include <linux/pci.h>
  42 #include <linux/list.h>
  43 #include <linux/io.h>
  44 #include <linux/leds.h>
  45
  46 #include "arcdevice.h"
  47 #include "com20020.h"
  48
  49 /* Module parameters */
  50
  51 static int node;
  52 static char device[9];          /* use eg. device="arc1" to change name */
  53 static int timeout = 3;
  54 static int backplane;
  55 static int clockp;
  56 static int clockm;
  57
  58 module_param(node, int, 0);
  59 module_param_string(device, device, sizeof(device), 0);
  60 module_param(timeout, int, 0);
  61 module_param(backplane, int, 0);
  62 module_param(clockp, int, 0);
  63 module_param(clockm, int, 0);
  64 MODULE_LICENSE("GPL");
  65
  66 static void led_tx_set(struct led_classdev *led_cdev,
  67                              enum led_brightness value)
  68 {
  69         struct com20020_dev *card;
  70         struct com20020_priv *priv;
  71         struct com20020_pci_card_info *ci;
  72
  73         card = container_of(led_cdev, struct com20020_dev, tx_led);
  74
  75         priv = card->pci_priv;
  76         ci = priv->ci;
  77
  78         outb(!!value, priv->misc + ci->leds[card->index].green);
  79 }
  80
  81 static void led_recon_set(struct led_classdev *led_cdev,
  82                              enum led_brightness value)
  83 {
  84         struct com20020_dev *card;
  85         struct com20020_priv *priv;
  86         struct com20020_pci_card_info *ci;
  87
  88         card = container_of(led_cdev, struct com20020_dev, recon_led);
  89
  90         priv = card->pci_priv;
  91         ci = priv->ci;
  92
  93         outb(!!value, priv->misc + ci->leds[card->index].red);
  94 }
  95
  96 static void com20020pci_remove(struct pci_dev *pdev);
  97
  98 static int com20020pci_probe(struct pci_dev *pdev,
  99                              const struct pci_device_id *id)
 100 {
 101         struct com20020_pci_card_info *ci;
 102         struct com20020_pci_channel_map *mm;
 103         struct net_device *dev;
 104         struct arcnet_local *lp;
 105         struct com20020_priv *priv;
 106         int i, ioaddr, ret;
 107         struct resource *r;
 108
 109         if (pci_enable_device(pdev))
 110                 return -EIO;
 111
 112         priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
 113                             GFP_KERNEL);
 114         if (!priv)
 115                 return -ENOMEM;
 116
 117         ci = (struct com20020_pci_card_info *)id->driver_data;
 118         priv->ci = ci;
 119         mm = &ci->misc_map;
 120
 121         INIT_LIST_HEAD(&priv->list_dev);
 122
 123         if (mm->size) {
 124                 ioaddr = pci_resource_start(pdev, mm->bar) + mm->offset;
 125                 r = devm_request_region(&pdev->dev, ioaddr, mm->size,
 126                                         "com20020-pci");
 127                 if (!r) {
 128                         pr_err("IO region %xh-%xh already allocated.\n",
 129                                ioaddr, ioaddr + mm->size - 1);
 130                         return -EBUSY;
 131                 }
 132                 priv->misc = ioaddr;
 133         }
 134
 135         for (i = 0; i < ci->devcount; i++) {
 136                 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
 137                 struct com20020_dev *card;
 138                 int dev_id_mask = 0xf;
 139
 140                 dev = alloc_arcdev(device);
 141                 if (!dev) {
 142                         ret = -ENOMEM;
 143                         goto out_port;
 144                 }
 145                 dev->dev_port = i;
 146
 147                 dev->netdev_ops = &com20020_netdev_ops;
 148
 149                 lp = netdev_priv(dev);
 150
 151                 arc_printk(D_NORMAL, dev, "%s Controls\n", ci->name);
 152                 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
 153
 154                 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
 155                                         "com20020-pci");
 156                 if (!r) {
 157                         pr_err("IO region %xh-%xh already allocated\n",
 158                                ioaddr, ioaddr + cm->size - 1);
 159                         ret = -EBUSY;
 160                         goto out_port;
 161                 }
 162
 163                 /* Dummy access after Reset
 164                  * ARCNET controller needs
 165                  * this access to detect bustype
 166                  */
 167                 arcnet_outb(0x00, ioaddr, COM20020_REG_W_COMMAND);
 168                 arcnet_inb(ioaddr, COM20020_REG_R_DIAGSTAT);
 169
 170                 SET_NETDEV_DEV(dev, &pdev->dev);
 171                 dev->base_addr = ioaddr;
 172                 dev->dev_addr[0] = node;
 173                 dev->irq = pdev->irq;
 174                 lp->card_name = "PCI COM20020";
 175                 lp->card_flags = ci->flags;
 176                 lp->backplane = backplane;
 177                 lp->clockp = clockp & 7;
 178                 lp->clockm = clockm & 3;
 179                 lp->timeout = timeout;
 180                 lp->hw.owner = THIS_MODULE;
 181
 182                 /* Get the dev_id from the PLX rotary coder */
 183                 if (!strncmp(ci->name, "EAE PLX-PCI MA1", 15))
 184                         dev_id_mask = 0x3;
 185                 dev->dev_id = (inb(priv->misc + ci->rotary) >> 4) & dev_id_mask;
 186
 187                 snprintf(dev->name, sizeof(dev->name), "arc%d-%d", dev->dev_id, i);
 188
 189                 if (arcnet_inb(ioaddr, COM20020_REG_R_STATUS) == 0xFF) {
 190                         pr_err("IO address %Xh is empty!\n", ioaddr);
 191                         ret = -EIO;
 192                         goto out_port;
 193                 }
 194                 if (com20020_check(dev)) {
 195                         ret = -EIO;
 196                         goto out_port;
 197                 }
 198
 199                 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
 200                                     GFP_KERNEL);
 201                 if (!card)
 202                         return -ENOMEM;
 203
 204                 card->index = i;
 205                 card->pci_priv = priv;
 206                 card->tx_led.brightness_set = led_tx_set;
 207                 card->tx_led.default_trigger = devm_kasprintf(&pdev->dev,
 208                                                 GFP_KERNEL, "arc%d-%d-tx",
 209                                                 dev->dev_id, i);
 210                 card->tx_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 211                                                 "pci:green:tx:%d-%d",
 212                                                 dev->dev_id, i);
 213
 214                 card->tx_led.dev = &dev->dev;
 215                 card->recon_led.brightness_set = led_recon_set;
 216                 card->recon_led.default_trigger = devm_kasprintf(&pdev->dev,
 217                                                 GFP_KERNEL, "arc%d-%d-recon",
 218                                                 dev->dev_id, i);
 219                 card->recon_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 220                                                 "pci:red:recon:%d-%d",
 221                                                 dev->dev_id, i);
 222                 card->recon_led.dev = &dev->dev;
 223                 card->dev = dev;
 224
 225                 ret = devm_led_classdev_register(&pdev->dev, &card->tx_led);
 226                 if (ret)
 227                         goto out_port;
 228
 229                 ret = devm_led_classdev_register(&pdev->dev, &card->recon_led);
 230                 if (ret)
 231                         goto out_port;
 232
 233                 dev_set_drvdata(&dev->dev, card);
 234
 235                 ret = com20020_found(dev, IRQF_SHARED);
 236                 if (ret)
 237                         goto out_port;
 238
 239                 devm_arcnet_led_init(dev, dev->dev_id, i);
 240
 241                 list_add(&card->list, &priv->list_dev);
 242         }
 243
 244         pci_set_drvdata(pdev, priv);
 245
 246         return 0;
 247
 248 out_port:
 249         com20020pci_remove(pdev);
 250         return ret;
 251 }
 252
 253 static void com20020pci_remove(struct pci_dev *pdev)
 254 {
 255         struct com20020_dev *card, *tmpcard;
 256         struct com20020_priv *priv;
 257
 258         priv = pci_get_drvdata(pdev);
 259
 260         list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
 261                 struct net_device *dev = card->dev;
 262
 263                 unregister_netdev(dev);
 264                 free_irq(dev->irq, dev);
 265                 free_netdev(dev);
 266         }
 267 }
 268
 269 static struct com20020_pci_card_info card_info_10mbit = {
 270         .name = "ARC-PCI",
 271         .devcount = 1,
 272         .chan_map_tbl = {
 273                 {
 274                         .bar = 2,
 275                         .offset = 0x00,
 276                         .size = 0x08,
 277                 },
 278         },
 279         .flags = ARC_CAN_10MBIT,
 280 };
 281
 282 static struct com20020_pci_card_info card_info_5mbit = {
 283         .name = "ARC-PCI",
 284         .devcount = 1,
 285         .chan_map_tbl = {
 286                 {
 287                         .bar = 2,
 288                         .offset = 0x00,
 289                         .size = 0x08,
 290                 },
 291         },
 292         .flags = ARC_IS_5MBIT,
 293 };
 294
 295 static struct com20020_pci_card_info card_info_sohard = {
 296         .name = "PLX-PCI",
 297         .devcount = 1,
 298         /* SOHARD needs PCI base addr 4 */
 299         .chan_map_tbl = {
 300                 {
 301                         .bar = 4,
 302                         .offset = 0x00,
 303                         .size = 0x08
 304                 },
 305         },
 306         .flags = ARC_CAN_10MBIT,
 307 };
 308
 309 static struct com20020_pci_card_info card_info_eae_arc1 = {
 310         .name = "EAE PLX-PCI ARC1",
 311         .devcount = 1,
 312         .chan_map_tbl = {
 313                 {
 314                         .bar = 2,
 315                         .offset = 0x00,
 316                         .size = 0x08,
 317                 },
 318         },
 319         .misc_map = {
 320                 .bar = 2,
 321                 .offset = 0x10,
 322                 .size = 0x04,
 323         },
 324         .leds = {
 325                 {
 326                         .green = 0x0,
 327                         .red = 0x1,
 328                 },
 329         },
 330         .rotary = 0x0,
 331         .flags = ARC_CAN_10MBIT,
 332 };
 333
 334 static struct com20020_pci_card_info card_info_eae_ma1 = {
 335         .name = "EAE PLX-PCI MA1",
 336         .devcount = 2,
 337         .chan_map_tbl = {
 338                 {
 339                         .bar = 2,
 340                         .offset = 0x00,
 341                         .size = 0x08,
 342                 }, {
 343                         .bar = 2,
 344                         .offset = 0x08,
 345                         .size = 0x08,
 346                 }
 347         },
 348         .misc_map = {
 349                 .bar = 2,
 350                 .offset = 0x10,
 351                 .size = 0x04,
 352         },
 353         .leds = {
 354                 {
 355                         .green = 0x0,
 356                         .red = 0x1,
 357                 }, {
 358                         .green = 0x2,
 359                         .red = 0x3,
 360                 },
 361         },
 362         .rotary = 0x0,
 363         .flags = ARC_CAN_10MBIT,
 364 };
 365
 366 static const struct pci_device_id com20020pci_id_table[] = {
 367         {
 368                 0x1571, 0xa001,
 369                 PCI_ANY_ID, PCI_ANY_ID,
 370                 0, 0,
 371                 0,
 372         },
 373         {
 374                 0x1571, 0xa002,
 375                 PCI_ANY_ID, PCI_ANY_ID,
 376                 0, 0,
 377                 0,
 378         },
 379         {
 380                 0x1571, 0xa003,
 381                 PCI_ANY_ID, PCI_ANY_ID,
 382                 0, 0,
 383                 0
 384         },
 385         {
 386                 0x1571, 0xa004,
 387                 PCI_ANY_ID, PCI_ANY_ID,
 388                 0, 0,
 389                 0,
 390         },
 391         {
 392                 0x1571, 0xa005,
 393                 PCI_ANY_ID, PCI_ANY_ID,
 394                 0, 0,
 395                 0
 396         },
 397         {
 398                 0x1571, 0xa006,
 399                 PCI_ANY_ID, PCI_ANY_ID,
 400                 0, 0,
 401                 0
 402         },
 403         {
 404                 0x1571, 0xa007,
 405                 PCI_ANY_ID, PCI_ANY_ID,
 406                 0, 0,
 407                 0
 408         },
 409         {
 410                 0x1571, 0xa008,
 411                 PCI_ANY_ID, PCI_ANY_ID,
 412                 0, 0,
 413                 0
 414         },
 415         {
 416                 0x1571, 0xa009,
 417                 PCI_ANY_ID, PCI_ANY_ID,
 418                 0, 0,
 419                 (kernel_ulong_t)&card_info_5mbit
 420         },
 421         {
 422                 0x1571, 0xa00a,
 423                 PCI_ANY_ID, PCI_ANY_ID,
 424                 0, 0,
 425                 (kernel_ulong_t)&card_info_5mbit
 426         },
 427         {
 428                 0x1571, 0xa00b,
 429                 PCI_ANY_ID, PCI_ANY_ID,
 430                 0, 0,
 431                 (kernel_ulong_t)&card_info_5mbit
 432         },
 433         {
 434                 0x1571, 0xa00c,
 435                 PCI_ANY_ID, PCI_ANY_ID,
 436                 0, 0,
 437                 (kernel_ulong_t)&card_info_5mbit
 438         },
 439         {
 440                 0x1571, 0xa00d,
 441                 PCI_ANY_ID, PCI_ANY_ID,
 442                 0, 0,
 443                 (kernel_ulong_t)&card_info_5mbit
 444         },
 445         {
 446                 0x1571, 0xa00e,
 447                 PCI_ANY_ID, PCI_ANY_ID,
 448                 0, 0,
 449                 (kernel_ulong_t)&card_info_5mbit
 450         },
 451         {
 452                 0x1571, 0xa201,
 453                 PCI_ANY_ID, PCI_ANY_ID,
 454                 0, 0,
 455                 (kernel_ulong_t)&card_info_10mbit
 456         },
 457         {
 458                 0x1571, 0xa202,
 459                 PCI_ANY_ID, PCI_ANY_ID,
 460                 0, 0,
 461                 (kernel_ulong_t)&card_info_10mbit
 462         },
 463         {
 464                 0x1571, 0xa203,
 465                 PCI_ANY_ID, PCI_ANY_ID,
 466                 0, 0,
 467                 (kernel_ulong_t)&card_info_10mbit
 468         },
 469         {
 470                 0x1571, 0xa204,
 471                 PCI_ANY_ID, PCI_ANY_ID,
 472                 0, 0,
 473                 (kernel_ulong_t)&card_info_10mbit
 474         },
 475         {
 476                 0x1571, 0xa205,
 477                 PCI_ANY_ID, PCI_ANY_ID,
 478                 0, 0,
 479                 (kernel_ulong_t)&card_info_10mbit
 480         },
 481         {
 482                 0x1571, 0xa206,
 483                 PCI_ANY_ID, PCI_ANY_ID,
 484                 0, 0,
 485                 (kernel_ulong_t)&card_info_10mbit
 486         },
 487         {
 488                 0x10B5, 0x9030,
 489                 0x10B5, 0x2978,
 490                 0, 0,
 491                 (kernel_ulong_t)&card_info_sohard
 492         },
 493         {
 494                 0x10B5, 0x9050,
 495                 0x10B5, 0x2273,
 496                 0, 0,
 497                 (kernel_ulong_t)&card_info_sohard
 498         },
 499         {
 500                 0x10B5, 0x9050,
 501                 0x10B5, 0x3263,
 502                 0, 0,
 503                 (kernel_ulong_t)&card_info_eae_arc1
 504         },
 505         {
 506                 0x10B5, 0x9050,
 507                 0x10B5, 0x3292,
 508                 0, 0,
 509                 (kernel_ulong_t)&card_info_eae_ma1
 510         },
 511         {
 512                 0x14BA, 0x6000,
 513                 PCI_ANY_ID, PCI_ANY_ID,
 514                 0, 0,
 515                 (kernel_ulong_t)&card_info_10mbit
 516         },
 517         {
 518                 0x10B5, 0x2200,
 519                 PCI_ANY_ID, PCI_ANY_ID,
 520                 0, 0,
 521                 (kernel_ulong_t)&card_info_10mbit
 522         },
 523         { 0, }
 524 };
 525
 526 MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
 527
 528 static struct pci_driver com20020pci_driver = {
 529         .name           = "com20020",
 530         .id_table       = com20020pci_id_table,
 531         .probe          = com20020pci_probe,
 532         .remove         = com20020pci_remove,
 533 };
 534
 535 static int __init com20020pci_init(void)
 536 {
 537         if (BUGLVL(D_NORMAL))
 538                 pr_info("%s\n", "COM20020 PCI support");
 539         return pci_register_driver(&com20020pci_driver);
 540 }
 541
 542 static void __exit com20020pci_cleanup(void)
 543 {
 544         pci_unregister_driver(&com20020pci_driver);
 545 }
 546
 547 module_init(com20020pci_init)
 548 module_exit(com20020pci_cleanup)