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