drivers/ipack/carriers/tpci200.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /**
   3  * tpci200.c
   4  *
   5  * driver for the TEWS TPCI-200 device
   6  *
   7  * Copyright (C) 2009-2012 CERN (www.cern.ch)
   8  * Author: Nicolas Serafini, EIC2 SA
   9  * Author: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/slab.h>
  14 #include "tpci200.h"
  15
  16 static const u16 tpci200_status_timeout[] = {
  17         TPCI200_A_TIMEOUT,
  18         TPCI200_B_TIMEOUT,
  19         TPCI200_C_TIMEOUT,
  20         TPCI200_D_TIMEOUT,
  21 };
  22
  23 static const u16 tpci200_status_error[] = {
  24         TPCI200_A_ERROR,
  25         TPCI200_B_ERROR,
  26         TPCI200_C_ERROR,
  27         TPCI200_D_ERROR,
  28 };
  29
  30 static const size_t tpci200_space_size[IPACK_SPACE_COUNT] = {
  31         [IPACK_IO_SPACE]    = TPCI200_IO_SPACE_SIZE,
  32         [IPACK_ID_SPACE]    = TPCI200_ID_SPACE_SIZE,
  33         [IPACK_INT_SPACE]   = TPCI200_INT_SPACE_SIZE,
  34         [IPACK_MEM8_SPACE]  = TPCI200_MEM8_SPACE_SIZE,
  35         [IPACK_MEM16_SPACE] = TPCI200_MEM16_SPACE_SIZE,
  36 };
  37
  38 static const size_t tpci200_space_interval[IPACK_SPACE_COUNT] = {
  39         [IPACK_IO_SPACE]    = TPCI200_IO_SPACE_INTERVAL,
  40         [IPACK_ID_SPACE]    = TPCI200_ID_SPACE_INTERVAL,
  41         [IPACK_INT_SPACE]   = TPCI200_INT_SPACE_INTERVAL,
  42         [IPACK_MEM8_SPACE]  = TPCI200_MEM8_SPACE_INTERVAL,
  43         [IPACK_MEM16_SPACE] = TPCI200_MEM16_SPACE_INTERVAL,
  44 };
  45
  46 static struct tpci200_board *check_slot(struct ipack_device *dev)
  47 {
  48         struct tpci200_board *tpci200;
  49
  50         if (dev == NULL)
  51                 return NULL;
  52
  53
  54         tpci200 = dev_get_drvdata(dev->bus->parent);
  55
  56         if (tpci200 == NULL) {
  57                 dev_info(&dev->dev, "carrier board not found\n");
  58                 return NULL;
  59         }
  60
  61         if (dev->slot >= TPCI200_NB_SLOT) {
  62                 dev_info(&dev->dev,
  63                          "Slot [%d:%d] doesn't exist! Last tpci200 slot is %d.\n",
  64                          dev->bus->bus_nr, dev->slot, TPCI200_NB_SLOT-1);
  65                 return NULL;
  66         }
  67
  68         return tpci200;
  69 }
  70
  71 static void tpci200_clear_mask(struct tpci200_board *tpci200,
  72                                __le16 __iomem *addr, u16 mask)
  73 {
  74         unsigned long flags;
  75         spin_lock_irqsave(&tpci200->regs_lock, flags);
  76         iowrite16(ioread16(addr) & (~mask), addr);
  77         spin_unlock_irqrestore(&tpci200->regs_lock, flags);
  78 }
  79
  80 static void tpci200_set_mask(struct tpci200_board *tpci200,
  81                              __le16 __iomem *addr, u16 mask)
  82 {
  83         unsigned long flags;
  84         spin_lock_irqsave(&tpci200->regs_lock, flags);
  85         iowrite16(ioread16(addr) | mask, addr);
  86         spin_unlock_irqrestore(&tpci200->regs_lock, flags);
  87 }
  88
  89 static void tpci200_unregister(struct tpci200_board *tpci200)
  90 {
  91         free_irq(tpci200->info->pdev->irq, (void *) tpci200);
  92
  93         pci_iounmap(tpci200->info->pdev, tpci200->info->interface_regs);
  94         pci_iounmap(tpci200->info->pdev, tpci200->info->cfg_regs);
  95
  96         pci_release_region(tpci200->info->pdev, TPCI200_IP_INTERFACE_BAR);
  97         pci_release_region(tpci200->info->pdev, TPCI200_IO_ID_INT_SPACES_BAR);
  98         pci_release_region(tpci200->info->pdev, TPCI200_MEM16_SPACE_BAR);
  99         pci_release_region(tpci200->info->pdev, TPCI200_MEM8_SPACE_BAR);
 100         pci_release_region(tpci200->info->pdev, TPCI200_CFG_MEM_BAR);
 101
 102         pci_disable_device(tpci200->info->pdev);
 103         pci_dev_put(tpci200->info->pdev);
 104 }
 105
 106 static void tpci200_enable_irq(struct tpci200_board *tpci200,
 107                                int islot)
 108 {
 109         tpci200_set_mask(tpci200,
 110                         &tpci200->info->interface_regs->control[islot],
 111                         TPCI200_INT0_EN | TPCI200_INT1_EN);
 112 }
 113
 114 static void tpci200_disable_irq(struct tpci200_board *tpci200,
 115                                 int islot)
 116 {
 117         tpci200_clear_mask(tpci200,
 118                         &tpci200->info->interface_regs->control[islot],
 119                         TPCI200_INT0_EN | TPCI200_INT1_EN);
 120 }
 121
 122 static irqreturn_t tpci200_slot_irq(struct slot_irq *slot_irq)
 123 {
 124         irqreturn_t ret;
 125
 126         if (!slot_irq)
 127                 return -ENODEV;
 128         ret = slot_irq->handler(slot_irq->arg);
 129
 130         return ret;
 131 }
 132
 133 static irqreturn_t tpci200_interrupt(int irq, void *dev_id)
 134 {
 135         struct tpci200_board *tpci200 = (struct tpci200_board *) dev_id;
 136         struct slot_irq *slot_irq;
 137         irqreturn_t ret;
 138         u16 status_reg;
 139         int i;
 140
 141         /* Read status register */
 142         status_reg = ioread16(&tpci200->info->interface_regs->status);
 143
 144         /* Did we cause the interrupt? */
 145         if (!(status_reg & TPCI200_SLOT_INT_MASK))
 146                 return IRQ_NONE;
 147
 148         /* callback to the IRQ handler for the corresponding slot */
 149         rcu_read_lock();
 150         for (i = 0; i < TPCI200_NB_SLOT; i++) {
 151                 if (!(status_reg & ((TPCI200_A_INT0 | TPCI200_A_INT1) << (2 * i))))
 152                         continue;
 153                 slot_irq = rcu_dereference(tpci200->slots[i].irq);
 154                 ret = tpci200_slot_irq(slot_irq);
 155                 if (ret == -ENODEV) {
 156                         dev_info(&tpci200->info->pdev->dev,
 157                                  "No registered ISR for slot [%d:%d]!. IRQ will be disabled.\n",
 158                                  tpci200->number, i);
 159                         tpci200_disable_irq(tpci200, i);
 160                 }
 161         }
 162         rcu_read_unlock();
 163
 164         return IRQ_HANDLED;
 165 }
 166
 167 static int tpci200_free_irq(struct ipack_device *dev)
 168 {
 169         struct slot_irq *slot_irq;
 170         struct tpci200_board *tpci200;
 171
 172         tpci200 = check_slot(dev);
 173         if (tpci200 == NULL)
 174                 return -EINVAL;
 175
 176         if (mutex_lock_interruptible(&tpci200->mutex))
 177                 return -ERESTARTSYS;
 178
 179         if (tpci200->slots[dev->slot].irq == NULL) {
 180                 mutex_unlock(&tpci200->mutex);
 181                 return -EINVAL;
 182         }
 183
 184         tpci200_disable_irq(tpci200, dev->slot);
 185         slot_irq = tpci200->slots[dev->slot].irq;
 186         /* uninstall handler */
 187         RCU_INIT_POINTER(tpci200->slots[dev->slot].irq, NULL);
 188         synchronize_rcu();
 189         kfree(slot_irq);
 190         mutex_unlock(&tpci200->mutex);
 191         return 0;
 192 }
 193
 194 static int tpci200_request_irq(struct ipack_device *dev,
 195                                irqreturn_t (*handler)(void *), void *arg)
 196 {
 197         int res = 0;
 198         struct slot_irq *slot_irq;
 199         struct tpci200_board *tpci200;
 200
 201         tpci200 = check_slot(dev);
 202         if (tpci200 == NULL)
 203                 return -EINVAL;
 204
 205         if (mutex_lock_interruptible(&tpci200->mutex))
 206                 return -ERESTARTSYS;
 207
 208         if (tpci200->slots[dev->slot].irq != NULL) {
 209                 dev_err(&dev->dev,
 210                         "Slot [%d:%d] IRQ already registered !\n",
 211                         dev->bus->bus_nr,
 212                         dev->slot);
 213                 res = -EINVAL;
 214                 goto out_unlock;
 215         }
 216
 217         slot_irq = kzalloc(sizeof(struct slot_irq), GFP_KERNEL);
 218         if (slot_irq == NULL) {
 219                 dev_err(&dev->dev,
 220                         "Slot [%d:%d] unable to allocate memory for IRQ !\n",
 221                         dev->bus->bus_nr, dev->slot);
 222                 res = -ENOMEM;
 223                 goto out_unlock;
 224         }
 225
 226         /*
 227          * WARNING: Setup Interrupt Vector in the IndustryPack device
 228          * before an IRQ request.
 229          * Read the User Manual of your IndustryPack device to know
 230          * where to write the vector in memory.
 231          */
 232         slot_irq->handler = handler;
 233         slot_irq->arg = arg;
 234         slot_irq->holder = dev;
 235
 236         rcu_assign_pointer(tpci200->slots[dev->slot].irq, slot_irq);
 237         tpci200_enable_irq(tpci200, dev->slot);
 238
 239 out_unlock:
 240         mutex_unlock(&tpci200->mutex);
 241         return res;
 242 }
 243
 244 static int tpci200_register(struct tpci200_board *tpci200)
 245 {
 246         int i;
 247         int res;
 248         phys_addr_t ioidint_base;
 249         unsigned short slot_ctrl;
 250
 251         if (pci_enable_device(tpci200->info->pdev) < 0)
 252                 return -ENODEV;
 253
 254         /* Request IP interface register (Bar 2) */
 255         res = pci_request_region(tpci200->info->pdev, TPCI200_IP_INTERFACE_BAR,
 256                                  "Carrier IP interface registers");
 257         if (res) {
 258                 dev_err(&tpci200->info->pdev->dev,
 259                         "(bn 0x%X, sn 0x%X) failed to allocate PCI resource for BAR 2 !",
 260                         tpci200->info->pdev->bus->number,
 261                         tpci200->info->pdev->devfn);
 262                 goto out_disable_pci;
 263         }
 264
 265         /* Request IO ID INT space (Bar 3) */
 266         res = pci_request_region(tpci200->info->pdev,
 267                                  TPCI200_IO_ID_INT_SPACES_BAR,
 268                                  "Carrier IO ID INT space");
 269         if (res) {
 270                 dev_err(&tpci200->info->pdev->dev,
 271                         "(bn 0x%X, sn 0x%X) failed to allocate PCI resource for BAR 3 !",
 272                         tpci200->info->pdev->bus->number,
 273                         tpci200->info->pdev->devfn);
 274                 goto out_release_ip_space;
 275         }
 276
 277         /* Request MEM8 space (Bar 5) */
 278         res = pci_request_region(tpci200->info->pdev, TPCI200_MEM8_SPACE_BAR,
 279                                  "Carrier MEM8 space");
 280         if (res) {
 281                 dev_err(&tpci200->info->pdev->dev,
 282                         "(bn 0x%X, sn 0x%X) failed to allocate PCI resource for BAR 5!",
 283                         tpci200->info->pdev->bus->number,
 284                         tpci200->info->pdev->devfn);
 285                 goto out_release_ioid_int_space;
 286         }
 287
 288         /* Request MEM16 space (Bar 4) */
 289         res = pci_request_region(tpci200->info->pdev, TPCI200_MEM16_SPACE_BAR,
 290                                  "Carrier MEM16 space");
 291         if (res) {
 292                 dev_err(&tpci200->info->pdev->dev,
 293                         "(bn 0x%X, sn 0x%X) failed to allocate PCI resource for BAR 4!",
 294                         tpci200->info->pdev->bus->number,
 295                         tpci200->info->pdev->devfn);
 296                 goto out_release_mem8_space;
 297         }
 298
 299         /* Map internal tpci200 driver user space */
 300         tpci200->info->interface_regs =
 301                 ioremap_nocache(pci_resource_start(tpci200->info->pdev,
 302                                            TPCI200_IP_INTERFACE_BAR),
 303                         TPCI200_IFACE_SIZE);
 304         if (!tpci200->info->interface_regs) {
 305                 dev_err(&tpci200->info->pdev->dev,
 306                         "(bn 0x%X, sn 0x%X) failed to map driver user space!",
 307                         tpci200->info->pdev->bus->number,
 308                         tpci200->info->pdev->devfn);
 309                 goto out_release_mem8_space;
 310         }
 311
 312         /* Initialize lock that protects interface_regs */
 313         spin_lock_init(&tpci200->regs_lock);
 314
 315         ioidint_base = pci_resource_start(tpci200->info->pdev,
 316                                           TPCI200_IO_ID_INT_SPACES_BAR);
 317         tpci200->mod_mem[IPACK_IO_SPACE] = ioidint_base + TPCI200_IO_SPACE_OFF;
 318         tpci200->mod_mem[IPACK_ID_SPACE] = ioidint_base + TPCI200_ID_SPACE_OFF;
 319         tpci200->mod_mem[IPACK_INT_SPACE] =
 320                 ioidint_base + TPCI200_INT_SPACE_OFF;
 321         tpci200->mod_mem[IPACK_MEM8_SPACE] =
 322                 pci_resource_start(tpci200->info->pdev,
 323                                    TPCI200_MEM8_SPACE_BAR);
 324         tpci200->mod_mem[IPACK_MEM16_SPACE] =
 325                 pci_resource_start(tpci200->info->pdev,
 326                                    TPCI200_MEM16_SPACE_BAR);
 327
 328         /* Set the default parameters of the slot
 329          * INT0 disabled, level sensitive
 330          * INT1 disabled, level sensitive
 331          * error interrupt disabled
 332          * timeout interrupt disabled
 333          * recover time disabled
 334          * clock rate 8 MHz
 335          */
 336         slot_ctrl = 0;
 337         for (i = 0; i < TPCI200_NB_SLOT; i++)
 338                 writew(slot_ctrl, &tpci200->info->interface_regs->control[i]);
 339
 340         res = request_irq(tpci200->info->pdev->irq,
 341                           tpci200_interrupt, IRQF_SHARED,
 342                           KBUILD_MODNAME, (void *) tpci200);
 343         if (res) {
 344                 dev_err(&tpci200->info->pdev->dev,
 345                         "(bn 0x%X, sn 0x%X) unable to register IRQ !",
 346                         tpci200->info->pdev->bus->number,
 347                         tpci200->info->pdev->devfn);
 348                 goto out_release_ioid_int_space;
 349         }
 350
 351         return 0;
 352
 353 out_release_mem8_space:
 354         pci_release_region(tpci200->info->pdev, TPCI200_MEM8_SPACE_BAR);
 355 out_release_ioid_int_space:
 356         pci_release_region(tpci200->info->pdev, TPCI200_IO_ID_INT_SPACES_BAR);
 357 out_release_ip_space:
 358         pci_release_region(tpci200->info->pdev, TPCI200_IP_INTERFACE_BAR);
 359 out_disable_pci:
 360         pci_disable_device(tpci200->info->pdev);
 361         return res;
 362 }
 363
 364 static int tpci200_get_clockrate(struct ipack_device *dev)
 365 {
 366         struct tpci200_board *tpci200 = check_slot(dev);
 367         __le16 __iomem *addr;
 368
 369         if (!tpci200)
 370                 return -ENODEV;
 371
 372         addr = &tpci200->info->interface_regs->control[dev->slot];
 373         return (ioread16(addr) & TPCI200_CLK32) ? 32 : 8;
 374 }
 375
 376 static int tpci200_set_clockrate(struct ipack_device *dev, int mherz)
 377 {
 378         struct tpci200_board *tpci200 = check_slot(dev);
 379         __le16 __iomem *addr;
 380
 381         if (!tpci200)
 382                 return -ENODEV;
 383
 384         addr = &tpci200->info->interface_regs->control[dev->slot];
 385
 386         switch (mherz) {
 387         case 8:
 388                 tpci200_clear_mask(tpci200, addr, TPCI200_CLK32);
 389                 break;
 390         case 32:
 391                 tpci200_set_mask(tpci200, addr, TPCI200_CLK32);
 392                 break;
 393         default:
 394                 return -EINVAL;
 395         }
 396         return 0;
 397 }
 398
 399 static int tpci200_get_error(struct ipack_device *dev)
 400 {
 401         struct tpci200_board *tpci200 = check_slot(dev);
 402         __le16 __iomem *addr;
 403         u16 mask;
 404
 405         if (!tpci200)
 406                 return -ENODEV;
 407
 408         addr = &tpci200->info->interface_regs->status;
 409         mask = tpci200_status_error[dev->slot];
 410         return (ioread16(addr) & mask) ? 1 : 0;
 411 }
 412
 413 static int tpci200_get_timeout(struct ipack_device *dev)
 414 {
 415         struct tpci200_board *tpci200 = check_slot(dev);
 416         __le16 __iomem *addr;
 417         u16 mask;
 418
 419         if (!tpci200)
 420                 return -ENODEV;
 421
 422         addr = &tpci200->info->interface_regs->status;
 423         mask = tpci200_status_timeout[dev->slot];
 424
 425         return (ioread16(addr) & mask) ? 1 : 0;
 426 }
 427
 428 static int tpci200_reset_timeout(struct ipack_device *dev)
 429 {
 430         struct tpci200_board *tpci200 = check_slot(dev);
 431         __le16 __iomem *addr;
 432         u16 mask;
 433
 434         if (!tpci200)
 435                 return -ENODEV;
 436
 437         addr = &tpci200->info->interface_regs->status;
 438         mask = tpci200_status_timeout[dev->slot];
 439
 440         iowrite16(mask, addr);
 441         return 0;
 442 }
 443
 444 static void tpci200_uninstall(struct tpci200_board *tpci200)
 445 {
 446         tpci200_unregister(tpci200);
 447         kfree(tpci200->slots);
 448 }
 449
 450 static const struct ipack_bus_ops tpci200_bus_ops = {
 451         .request_irq = tpci200_request_irq,
 452         .free_irq = tpci200_free_irq,
 453         .get_clockrate = tpci200_get_clockrate,
 454         .set_clockrate = tpci200_set_clockrate,
 455         .get_error     = tpci200_get_error,
 456         .get_timeout   = tpci200_get_timeout,
 457         .reset_timeout = tpci200_reset_timeout,
 458 };
 459
 460 static int tpci200_install(struct tpci200_board *tpci200)
 461 {
 462         int res;
 463
 464         tpci200->slots = kcalloc(TPCI200_NB_SLOT, sizeof(struct tpci200_slot),
 465                                  GFP_KERNEL);
 466         if (tpci200->slots == NULL)
 467                 return -ENOMEM;
 468
 469         res = tpci200_register(tpci200);
 470         if (res) {
 471                 kfree(tpci200->slots);
 472                 tpci200->slots = NULL;
 473                 return res;
 474         }
 475
 476         mutex_init(&tpci200->mutex);
 477         return 0;
 478 }
 479
 480 static void tpci200_release_device(struct ipack_device *dev)
 481 {
 482         kfree(dev);
 483 }
 484
 485 static int tpci200_create_device(struct tpci200_board *tpci200, int i)
 486 {
 487         int ret;
 488         enum ipack_space space;
 489         struct ipack_device *dev =
 490                 kzalloc(sizeof(struct ipack_device), GFP_KERNEL);
 491         if (!dev)
 492                 return -ENOMEM;
 493         dev->slot = i;
 494         dev->bus = tpci200->info->ipack_bus;
 495         dev->release = tpci200_release_device;
 496
 497         for (space = 0; space < IPACK_SPACE_COUNT; space++) {
 498                 dev->region[space].start =
 499                         tpci200->mod_mem[space]
 500                         + tpci200_space_interval[space] * i;
 501                 dev->region[space].size = tpci200_space_size[space];
 502         }
 503
 504         ret = ipack_device_init(dev);
 505         if (ret < 0) {
 506                 ipack_put_device(dev);
 507                 return ret;
 508         }
 509
 510         ret = ipack_device_add(dev);
 511         if (ret < 0)
 512                 ipack_put_device(dev);
 513
 514         return ret;
 515 }
 516
 517 static int tpci200_pci_probe(struct pci_dev *pdev,
 518                              const struct pci_device_id *id)
 519 {
 520         int ret, i;
 521         struct tpci200_board *tpci200;
 522         u32 reg32;
 523
 524         tpci200 = kzalloc(sizeof(struct tpci200_board), GFP_KERNEL);
 525         if (!tpci200)
 526                 return -ENOMEM;
 527
 528         tpci200->info = kzalloc(sizeof(struct tpci200_infos), GFP_KERNEL);
 529         if (!tpci200->info) {
 530                 ret = -ENOMEM;
 531                 goto out_err_info;
 532         }
 533
 534         pci_dev_get(pdev);
 535
 536         /* Obtain a mapping of the carrier's PCI configuration registers */
 537         ret = pci_request_region(pdev, TPCI200_CFG_MEM_BAR,
 538                                  KBUILD_MODNAME " Configuration Memory");
 539         if (ret) {
 540                 dev_err(&pdev->dev, "Failed to allocate PCI Configuration Memory");
 541                 ret = -EBUSY;
 542                 goto out_err_pci_request;
 543         }
 544         tpci200->info->cfg_regs = ioremap_nocache(
 545                         pci_resource_start(pdev, TPCI200_CFG_MEM_BAR),
 546                         pci_resource_len(pdev, TPCI200_CFG_MEM_BAR));
 547         if (!tpci200->info->cfg_regs) {
 548                 dev_err(&pdev->dev, "Failed to map PCI Configuration Memory");
 549                 ret = -EFAULT;
 550                 goto out_err_ioremap;
 551         }
 552
 553         /* Disable byte swapping for 16 bit IP module access. This will ensure
 554          * that the Industrypack big endian byte order is preserved by the
 555          * carrier. */
 556         reg32 = ioread32(tpci200->info->cfg_regs + LAS1_DESC);
 557         reg32 |= 1 << LAS_BIT_BIGENDIAN;
 558         iowrite32(reg32, tpci200->info->cfg_regs + LAS1_DESC);
 559
 560         reg32 = ioread32(tpci200->info->cfg_regs + LAS2_DESC);
 561         reg32 |= 1 << LAS_BIT_BIGENDIAN;
 562         iowrite32(reg32, tpci200->info->cfg_regs + LAS2_DESC);
 563
 564         /* Save struct pci_dev pointer */
 565         tpci200->info->pdev = pdev;
 566         tpci200->info->id_table = (struct pci_device_id *)id;
 567
 568         /* register the device and initialize it */
 569         ret = tpci200_install(tpci200);
 570         if (ret) {
 571                 dev_err(&pdev->dev, "error during tpci200 install\n");
 572                 ret = -ENODEV;
 573                 goto out_err_install;
 574         }
 575
 576         /* Register the carrier in the industry pack bus driver */
 577         tpci200->info->ipack_bus = ipack_bus_register(&pdev->dev,
 578                                                       TPCI200_NB_SLOT,
 579                                                       &tpci200_bus_ops,
 580                                                       THIS_MODULE);
 581         if (!tpci200->info->ipack_bus) {
 582                 dev_err(&pdev->dev,
 583                         "error registering the carrier on ipack driver\n");
 584                 ret = -EFAULT;
 585                 goto out_err_bus_register;
 586         }
 587
 588         /* save the bus number given by ipack to logging purpose */
 589         tpci200->number = tpci200->info->ipack_bus->bus_nr;
 590         dev_set_drvdata(&pdev->dev, tpci200);
 591
 592         for (i = 0; i < TPCI200_NB_SLOT; i++)
 593                 tpci200_create_device(tpci200, i);
 594         return 0;
 595
 596 out_err_bus_register:
 597         tpci200_uninstall(tpci200);
 598 out_err_install:
 599         iounmap(tpci200->info->cfg_regs);
 600 out_err_ioremap:
 601         pci_release_region(pdev, TPCI200_CFG_MEM_BAR);
 602 out_err_pci_request:
 603         pci_dev_put(pdev);
 604         kfree(tpci200->info);
 605 out_err_info:
 606         kfree(tpci200);
 607         return ret;
 608 }
 609
 610 static void __tpci200_pci_remove(struct tpci200_board *tpci200)
 611 {
 612         ipack_bus_unregister(tpci200->info->ipack_bus);
 613         tpci200_uninstall(tpci200);
 614
 615         kfree(tpci200->info);
 616         kfree(tpci200);
 617 }
 618
 619 static void tpci200_pci_remove(struct pci_dev *dev)
 620 {
 621         struct tpci200_board *tpci200 = pci_get_drvdata(dev);
 622
 623         __tpci200_pci_remove(tpci200);
 624 }
 625
 626 static const struct pci_device_id tpci200_idtable[] = {
 627         { TPCI200_VENDOR_ID, TPCI200_DEVICE_ID, TPCI200_SUBVENDOR_ID,
 628           TPCI200_SUBDEVICE_ID },
 629         { 0, },
 630 };
 631
 632 MODULE_DEVICE_TABLE(pci, tpci200_idtable);
 633
 634 static struct pci_driver tpci200_pci_drv = {
 635         .name = "tpci200",
 636         .id_table = tpci200_idtable,
 637         .probe = tpci200_pci_probe,
 638         .remove = tpci200_pci_remove,
 639 };
 640
 641 module_pci_driver(tpci200_pci_drv);
 642
 643 MODULE_DESCRIPTION("TEWS TPCI-200 device driver");
 644 MODULE_LICENSE("GPL");