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