drivers/pcmcia/vrc4173_cardu.c

   1 /*
   2  * FILE NAME
   3  *      drivers/pcmcia/vrc4173_cardu.c
   4  *
   5  * BRIEF MODULE DESCRIPTION
   6  *      NEC VRC4173 CARDU driver for Socket Services
   7  *      (This device doesn't support CardBus. it is supporting only 16bit PC Card.)
   8  *
   9  * Copyright 2002,2003 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
  10  *
  11  *  This program is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  *
  16  *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  17  *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  18  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  21  *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  22  *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23  *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  24  *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  25  *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  *  You should have received a copy of the GNU General Public License along
  28  *  with this program; if not, write to the Free Software Foundation, Inc.,
  29  *  675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31 #include <linux/init.h>
  32 #include <linux/module.h>
  33 #include <linux/pci.h>
  34 #include <linux/spinlock.h>
  35 #include <linux/types.h>
  36
  37 #include <asm/io.h>
  38
  39 #include <pcmcia/ss.h>
  40
  41 #include "vrc4173_cardu.h"
  42
  43 MODULE_DESCRIPTION("NEC VRC4173 CARDU driver for Socket Services");
  44 MODULE_AUTHOR("Yoichi Yuasa <yuasa@hh.iij4u.or.jp>");
  45 MODULE_LICENSE("GPL");
  46
  47 static int vrc4173_cardu_slots;
  48
  49 static vrc4173_socket_t cardu_sockets[CARDU_MAX_SOCKETS];
  50
  51 extern struct socket_info_t *pcmcia_register_socket (int slot,
  52                                                      struct pccard_operations *vtable,
  53                                                      int use_bus_pm);
  54 extern void pcmcia_unregister_socket(struct socket_info_t *s);
  55
  56 static inline uint8_t exca_readb(vrc4173_socket_t *socket, uint16_t offset)
  57 {
  58         return readb(socket->base + EXCA_REGS_BASE + offset);
  59 }
  60
  61 static inline uint16_t exca_readw(vrc4173_socket_t *socket, uint16_t offset)
  62 {
  63         uint16_t val;
  64
  65         val = readb(socket->base + EXCA_REGS_BASE + offset);
  66         val |= (u16)readb(socket->base + EXCA_REGS_BASE + offset + 1) << 8;
  67
  68         return val;
  69 }
  70
  71 static inline void exca_writeb(vrc4173_socket_t *socket, uint16_t offset, uint8_t val)
  72 {
  73         writeb(val, socket->base + EXCA_REGS_BASE + offset);
  74 }
  75
  76 static inline void exca_writew(vrc4173_socket_t *socket, uint8_t offset, uint16_t val)
  77 {
  78         writeb((u8)val, socket->base + EXCA_REGS_BASE + offset);
  79         writeb((u8)(val >> 8), socket->base + EXCA_REGS_BASE + offset + 1);
  80 }
  81
  82 static inline uint32_t cardbus_socket_readl(vrc4173_socket_t *socket, u16 offset)
  83 {
  84         return readl(socket->base + CARDBUS_SOCKET_REGS_BASE + offset);
  85 }
  86
  87 static inline void cardbus_socket_writel(vrc4173_socket_t *socket, u16 offset, uint32_t val)
  88 {
  89         writel(val, socket->base + CARDBUS_SOCKET_REGS_BASE + offset);
  90 }
  91
  92 static void cardu_pciregs_init(struct pci_dev *dev)
  93 {
  94         u32 syscnt;
  95         u16 brgcnt;
  96         u8 devcnt;
  97
  98         pci_write_config_dword(dev, 0x1c, 0x10000000);
  99         pci_write_config_dword(dev, 0x20, 0x17fff000);
 100         pci_write_config_dword(dev, 0x2c, 0);
 101         pci_write_config_dword(dev, 0x30, 0xfffc);
 102
 103         pci_read_config_word(dev, BRGCNT, &brgcnt);
 104         brgcnt &= ~IREQ_INT;
 105         pci_write_config_word(dev, BRGCNT, brgcnt);
 106
 107         pci_read_config_dword(dev, SYSCNT, &syscnt);
 108         syscnt &= ~(BAD_VCC_REQ_DISB|PCPCI_EN|CH_ASSIGN_MASK|SUB_ID_WR_EN|PCI_CLK_RIN);
 109         syscnt |= (CH_ASSIGN_NODMA|ASYN_INT_MODE);
 110         pci_write_config_dword(dev, SYSCNT, syscnt);
 111
 112         pci_read_config_byte(dev, DEVCNT, &devcnt);
 113         devcnt &= ~(ZOOM_VIDEO_EN|SR_PCI_INT_SEL_MASK|PCI_INT_MODE|IRQ_MODE);
 114         devcnt |= (SR_PCI_INT_SEL_NONE|IFG);
 115         pci_write_config_byte(dev, DEVCNT, devcnt);
 116
 117         pci_write_config_byte(dev, CHIPCNT, S_PREF_DISB);
 118
 119         pci_write_config_byte(dev, SERRDIS, 0);
 120 }
 121
 122 static int cardu_init(unsigned int slot)
 123 {
 124         vrc4173_socket_t *socket = &cardu_sockets[slot];
 125
 126         cardu_pciregs_init(socket->dev);
 127
 128         /* CARD_SC bits are cleared by reading CARD_SC. */
 129         exca_writeb(socket, GLO_CNT, 0);
 130
 131         socket->cap.features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
 132         socket->cap.irq_mask = 0;
 133         socket->cap.map_size = 0x1000;
 134         socket->cap.pci_irq  = socket->dev->irq;
 135         socket->events = 0;
 136         spin_lock_init(socket->event_lock);
 137
 138         /* Enable PC Card status interrupts */
 139         exca_writeb(socket, CARD_SCI, CARD_DT_EN|RDY_EN|BAT_WAR_EN|BAT_DEAD_EN);
 140
 141         return 0;
 142 }
 143
 144 static int cardu_register_callback(unsigned int sock,
 145                                            void (*handler)(void *, unsigned int),
 146                                            void * info)
 147 {
 148         vrc4173_socket_t *socket = &cardu_sockets[sock];
 149
 150         socket->handler = handler;
 151         socket->info = info;
 152
 153         return 0;
 154 }
 155
 156 static int cardu_inquire_socket(unsigned int sock, socket_cap_t *cap)
 157 {
 158         vrc4173_socket_t *socket = &cardu_sockets[sock];
 159
 160         *cap = socket->cap;
 161
 162         return 0;
 163 }
 164
 165 static int cardu_get_status(unsigned int sock, u_int *value)
 166 {
 167         vrc4173_socket_t *socket = &cardu_sockets[sock];
 168         uint32_t state;
 169         uint8_t status;
 170         u_int val = 0;
 171
 172         status = exca_readb(socket, IF_STATUS);
 173         if (status & CARD_PWR) val |= SS_POWERON;
 174         if (status & READY) val |= SS_READY;
 175         if (status & CARD_WP) val |= SS_WRPROT;
 176         if ((status & (CARD_DETECT1|CARD_DETECT2)) == (CARD_DETECT1|CARD_DETECT2))
 177                 val |= SS_DETECT;
 178         if (exca_readb(socket, INT_GEN_CNT) & CARD_TYPE_IO) {
 179                 if (status & STSCHG) val |= SS_STSCHG;
 180         } else {
 181                 status &= BV_DETECT_MASK;
 182                 if (status != BV_DETECT_GOOD) {
 183                         if (status == BV_DETECT_WARN) val |= SS_BATWARN;
 184                         else val |= SS_BATDEAD;
 185                 }
 186         }
 187
 188         state = cardbus_socket_readl(socket, SKT_PRE_STATE);
 189         if (state & VOL_3V_CARD_DT) val |= SS_3VCARD;
 190         if (state & VOL_XV_CARD_DT) val |= SS_XVCARD;
 191         if (state & CB_CARD_DT) val |= SS_CARDBUS;
 192         if (!(state &
 193               (VOL_YV_CARD_DT|VOL_XV_CARD_DT|VOL_3V_CARD_DT|VOL_5V_CARD_DT|CCD20|CCD10)))
 194                 val |= SS_PENDING;
 195
 196         *value = val;
 197
 198         return 0;
 199 }
 200
 201 static inline u_char get_Vcc_value(uint8_t val)
 202 {
 203         switch (val & VCC_MASK) {
 204         case VCC_3V:
 205                 return 33;
 206         case VCC_5V:
 207                 return 50;
 208         }
 209
 210         return 0;
 211 }
 212
 213 static inline u_char get_Vpp_value(uint8_t val)
 214 {
 215         switch (val & VPP_MASK) {
 216         case VPP_12V:
 217                 return 120;
 218         case VPP_VCC:
 219                 return get_Vcc_value(val);
 220         }
 221
 222         return 0;
 223 }
 224
 225 static int cardu_get_socket(unsigned int sock, socket_state_t *state)
 226 {
 227         vrc4173_socket_t *socket = &cardu_sockets[sock];
 228         uint8_t val;
 229
 230         val = exca_readb(socket, PWR_CNT);
 231         state->Vcc = get_Vcc_value(val);
 232         state->Vpp = get_Vpp_value(val);
 233         state->flags = 0;
 234         if (val & CARD_OUT_EN) state->flags |= SS_OUTPUT_ENA;
 235
 236         val = exca_readb(socket, INT_GEN_CNT);
 237         if (!(val & CARD_REST0)) state->flags |= SS_RESET;
 238         if (val & CARD_TYPE_IO) state->flags |= SS_IOCARD;
 239
 240         return 0;
 241 }
 242
 243 static inline uint8_t set_Vcc_value(u_char Vcc)
 244 {
 245         switch (Vcc) {
 246         case 33:
 247                 return VCC_3V;
 248         case 50:
 249                 return VCC_5V;
 250         }
 251
 252         return VCC_0V;
 253 }
 254
 255 static inline uint8_t set_Vpp_value(u_char Vpp)
 256 {
 257         switch (Vpp) {
 258         case 33:
 259         case 50:
 260                 return VPP_VCC;
 261         case 120:
 262                 return VPP_12V;
 263         }
 264
 265         return VPP_0V;
 266 }
 267
 268 static int cardu_set_socket(unsigned int sock, socket_state_t *state)
 269 {
 270         vrc4173_socket_t *socket = &cardu_sockets[sock];
 271         uint8_t val;
 272
 273         if (((state->Vpp == 33) || (state->Vpp == 50)) && (state->Vpp != state->Vcc))
 274                         return -EINVAL;
 275
 276         val = set_Vcc_value(state->Vcc);
 277         val |= set_Vpp_value(state->Vpp);
 278         if (state->flags & SS_OUTPUT_ENA) val |= CARD_OUT_EN;
 279         exca_writeb(socket, PWR_CNT, val);
 280
 281         val = exca_readb(socket, INT_GEN_CNT) & CARD_REST0;
 282         if (state->flags & SS_RESET) val &= ~CARD_REST0;
 283         else val |= CARD_REST0;
 284         if (state->flags & SS_IOCARD) val |= CARD_TYPE_IO;
 285         exca_writeb(socket, INT_GEN_CNT, val);
 286
 287         return 0;
 288 }
 289
 290 static int cardu_get_io_map(unsigned int sock, struct pccard_io_map *io)
 291 {
 292         vrc4173_socket_t *socket = &cardu_sockets[sock];
 293         uint8_t ioctl, window;
 294         u_char map;
 295
 296         map = io->map;
 297         if (map > 1)
 298                 return -EINVAL;
 299
 300         io->start = exca_readw(socket, IO_WIN_SA(map));
 301         io->stop = exca_readw(socket, IO_WIN_EA(map));
 302
 303         ioctl = exca_readb(socket, IO_WIN_CNT);
 304         window = exca_readb(socket, ADR_WIN_EN);
 305         io->flags  = (window & IO_WIN_EN(map)) ? MAP_ACTIVE : 0;
 306         if (ioctl & IO_WIN_DATA_AUTOSZ(map))
 307                 io->flags |= MAP_AUTOSZ;
 308         else if (ioctl & IO_WIN_DATA_16BIT(map))
 309                 io->flags |= MAP_16BIT;
 310
 311         return 0;
 312 }
 313
 314 static int cardu_set_io_map(unsigned int sock, struct pccard_io_map *io)
 315 {
 316         vrc4173_socket_t *socket = &cardu_sockets[sock];
 317         uint16_t ioctl;
 318         uint8_t window, enable;
 319         u_char map;
 320
 321         map = io->map;
 322         if (map > 1)
 323                 return -EINVAL;
 324
 325         window = exca_readb(socket, ADR_WIN_EN);
 326         enable = IO_WIN_EN(map);
 327
 328         if (window & enable) {
 329                 window &= ~enable;
 330                 exca_writeb(socket, ADR_WIN_EN, window);
 331         }
 332
 333         exca_writew(socket, IO_WIN_SA(map), io->start);
 334         exca_writew(socket, IO_WIN_EA(map), io->stop);
 335
 336         ioctl = exca_readb(socket, IO_WIN_CNT) & ~IO_WIN_CNT_MASK(map);
 337         if (io->flags & MAP_AUTOSZ) ioctl |= IO_WIN_DATA_AUTOSZ(map);
 338         else if (io->flags & MAP_16BIT) ioctl |= IO_WIN_DATA_16BIT(map);
 339         exca_writeb(socket, IO_WIN_CNT, ioctl);
 340
 341         if (io->flags & MAP_ACTIVE)
 342                 exca_writeb(socket, ADR_WIN_EN, window | enable);
 343
 344         return 0;
 345 }
 346
 347 static int cardu_get_mem_map(unsigned int sock, struct pccard_mem_map *mem)
 348 {
 349         vrc4173_socket_t *socket = &cardu_sockets[sock];
 350         uint32_t start, stop, offset, page;
 351         uint8_t window;
 352         u_char map;
 353
 354         map = mem->map;
 355         if (map > 4)
 356                 return -EINVAL;
 357
 358         window = exca_readb(socket, ADR_WIN_EN);
 359         mem->flags = (window & MEM_WIN_EN(map)) ? MAP_ACTIVE : 0;
 360
 361         start = exca_readw(socket, MEM_WIN_SA(map));
 362         mem->flags |= (start & MEM_WIN_DSIZE) ? MAP_16BIT : 0;
 363         start = (start & 0x0fff) << 12;
 364
 365         stop = exca_readw(socket, MEM_WIN_EA(map));
 366         stop = ((stop & 0x0fff) << 12) + 0x0fff;
 367
 368         offset = exca_readw(socket, MEM_WIN_OA(map));
 369         mem->flags |= (offset & MEM_WIN_WP) ? MAP_WRPROT : 0;
 370         mem->flags |= (offset & MEM_WIN_REGSET) ? MAP_ATTRIB : 0;
 371         offset = ((offset & 0x3fff) << 12) + start;
 372         mem->card_start = offset & 0x03ffffff;
 373
 374         page = exca_readb(socket, MEM_WIN_SAU(map)) << 24;
 375         mem->sys_start = start + page;
 376         mem->sys_stop = start + page;
 377
 378         return 0;
 379 }
 380
 381 static int cardu_set_mem_map(unsigned int sock, struct pccard_mem_map *mem)
 382 {
 383         vrc4173_socket_t *socket = &cardu_sockets[sock];
 384         uint16_t value;
 385         uint8_t window, enable;
 386         u_long sys_start, sys_stop, card_start;
 387         u_char map;
 388
 389         map = mem->map;
 390         sys_start = mem->sys_start;
 391         sys_stop = mem->sys_stop;
 392         card_start = mem->card_start;
 393
 394         if (map > 4 || sys_start > sys_stop || ((sys_start ^ sys_stop) >> 24) ||
 395             (card_start >> 26))
 396                 return -EINVAL;
 397
 398         window = exca_readb(socket, ADR_WIN_EN);
 399         enable = MEM_WIN_EN(map);
 400         if (window & enable) {
 401                 window &= ~enable;
 402                 exca_writeb(socket, ADR_WIN_EN, window);
 403         }
 404
 405         exca_writeb(socket, MEM_WIN_SAU(map), sys_start >> 24);
 406
 407         value = (sys_start >> 12) & 0x0fff;
 408         if (mem->flags & MAP_16BIT) value |= MEM_WIN_DSIZE;
 409         exca_writew(socket, MEM_WIN_SA(map), value);
 410
 411         value = (sys_stop >> 12) & 0x0fff;
 412         exca_writew(socket, MEM_WIN_EA(map), value);
 413
 414         value = ((card_start - sys_start) >> 12) & 0x3fff;
 415         if (mem->flags & MAP_WRPROT) value |= MEM_WIN_WP;
 416         if (mem->flags & MAP_ATTRIB) value |= MEM_WIN_REGSET;
 417         exca_writew(socket, MEM_WIN_OA(map), value);
 418
 419         if (mem->flags & MAP_ACTIVE)
 420                 exca_writeb(socket, ADR_WIN_EN, window | enable);
 421
 422         return 0;
 423 }
 424
 425 static void cardu_proc_setup(unsigned int sock, struct proc_dir_entry *base)
 426 {
 427 }
 428
 429 static struct pccard_operations cardu_operations = {
 430         .init                   = cardu_init,
 431         .register_callback      = cardu_register_callback,
 432         .inquire_socket         = cardu_inquire_socket,
 433         .get_status             = cardu_get_status,
 434         .get_socket             = cardu_get_socket,
 435         .set_socket             = cardu_set_socket,
 436         .get_io_map             = cardu_get_io_map,
 437         .set_io_map             = cardu_set_io_map,
 438         .get_mem_map            = cardu_get_mem_map,
 439         .set_mem_map            = cardu_set_mem_map,
 440         .proc_setup             = cardu_proc_setup,
 441 };
 442
 443 static void cardu_bh(void *data)
 444 {
 445         vrc4173_socket_t *socket = (vrc4173_socket_t *)data;
 446         uint16_t events;
 447
 448         spin_lock_irq(&socket->event_lock);
 449         events = socket->events;
 450         socket->events = 0;
 451         spin_unlock_irq(&socket->event_lock);
 452
 453         if (socket->handler)
 454                 socket->handler(socket->info, events);
 455 }
 456
 457 static uint16_t get_events(vrc4173_socket_t *socket)
 458 {
 459         uint16_t events = 0;
 460         uint8_t csc, status;
 461
 462         status = exca_readb(socket, IF_STATUS);
 463         csc = exca_readb(socket, CARD_SC);
 464         if ((csc & CARD_DT_CHG) &&
 465             ((status & (CARD_DETECT1|CARD_DETECT2)) == (CARD_DETECT1|CARD_DETECT2)))
 466                 events |= SS_DETECT;
 467
 468         if ((csc & RDY_CHG) && (status & READY))
 469                 events |= SS_READY;
 470
 471         if (exca_readb(socket, INT_GEN_CNT) & CARD_TYPE_IO) {
 472                 if ((csc & BAT_DEAD_ST_CHG) && (status & STSCHG))
 473                         events |= SS_STSCHG;
 474         } else {
 475                 if (csc & (BAT_WAR_CHG|BAT_DEAD_ST_CHG)) {
 476                         if ((status & BV_DETECT_MASK) != BV_DETECT_GOOD) {
 477                                 if (status == BV_DETECT_WARN) events |= SS_BATWARN;
 478                                 else events |= SS_BATDEAD;
 479                         }
 480                 }
 481         }
 482
 483         return events;
 484 }
 485
 486 static void cardu_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 487 {
 488         vrc4173_socket_t *socket = (vrc4173_socket_t *)dev_id;
 489         uint16_t events;
 490
 491         INIT_WORK(&socket->tq_work, cardu_bh, socket);
 492
 493         events = get_events(socket);
 494         if (events) {
 495                 spin_lock(&socket->event_lock);
 496                 socket->events |= events;
 497                 spin_unlock(&socket->event_lock);
 498                 schedule_work(&socket->tq_work);
 499         }
 500 }
 501
 502 static int __devinit vrc4173_cardu_probe(struct pci_dev *dev,
 503                                          const struct pci_device_id *ent)
 504 {
 505         vrc4173_socket_t *socket;
 506         unsigned long start, len, flags;
 507         int slot, err;
 508
 509         slot = vrc4173_cardu_slots++;
 510         socket = &cardu_sockets[slot];
 511         if (socket->noprobe != 0)
 512                 return -EBUSY;
 513
 514         sprintf(socket->name, "NEC VRC4173 CARDU%1d", slot+1);
 515
 516         if ((err = pci_enable_device(dev)) < 0)
 517                 return err;
 518
 519         start = pci_resource_start(dev, 0);
 520         if (start == 0)
 521                 return -ENODEV;
 522
 523         len = pci_resource_len(dev, 0);
 524         if (len == 0)
 525                 return -ENODEV;
 526
 527         if (((flags = pci_resource_flags(dev, 0)) & IORESOURCE_MEM) == 0)
 528                 return -EBUSY;
 529
 530         if ((err = pci_request_regions(dev, socket->name)) < 0)
 531                 return err;
 532
 533         socket->base = ioremap(start, len);
 534         if (socket->base == NULL)
 535                 return -ENODEV;
 536
 537         socket->dev = dev;
 538
 539         socket->pcmcia_socket = pcmcia_register_socket(slot, &cardu_operations, 1);
 540         if (socket->pcmcia_socket == NULL) {
 541                 iounmap(socket->base);
 542                 socket->base = NULL;
 543                 return -ENOMEM;
 544         }
 545
 546         if (request_irq(dev->irq, cardu_interrupt, SA_SHIRQ, socket->name, socket) < 0) {
 547                 pcmcia_unregister_socket(socket->pcmcia_socket);
 548                 socket->pcmcia_socket = NULL;
 549                 iounmap(socket->base);
 550                 socket->base = NULL;
 551                 return -EBUSY;
 552         }
 553
 554         printk(KERN_INFO "%s at %#08lx, IRQ %d\n", socket->name, start, dev->irq);
 555
 556         return 0;
 557 }
 558
 559 static int __devinit vrc4173_cardu_setup(char *options)
 560 {
 561         if (options == NULL || *options == '\0')
 562                 return 0;
 563
 564         if (strncmp(options, "cardu1:", 7) == 0) {
 565                 options += 7;
 566                 if (*options != '\0') {
 567                         if (strncmp(options, "noprobe", 7) == 0) {
 568                                 cardu_sockets[CARDU1].noprobe = 1;
 569                                 options += 7;
 570                         }
 571
 572                         if (*options != ',')
 573                                 return 0;
 574                 } else
 575                         return 0;
 576         }
 577
 578         if (strncmp(options, "cardu2:", 7) == 0) {
 579                 options += 7;
 580                 if ((*options != '\0') && (strncmp(options, "noprobe", 7) == 0))
 581                         cardu_sockets[CARDU2].noprobe = 1;
 582         }
 583
 584         return 0;
 585 }
 586
 587 __setup("vrc4173_cardu=", vrc4173_cardu_setup);
 588
 589 static struct pci_device_id vrc4173_cardu_id_table[] __devinitdata = {
 590         {       .vendor         = PCI_VENDOR_ID_NEC,
 591                 .device         = PCI_DEVICE_ID_NEC_NAPCCARD,
 592                 .subvendor      = PCI_ANY_ID,
 593                 .subdevice      = PCI_ANY_ID, },
 594         {0, }
 595 };
 596
 597 static struct pci_driver vrc4173_cardu_driver = {
 598         .name           = "NEC VRC4173 CARDU",
 599         .probe          = vrc4173_cardu_probe,
 600         .id_table       = vrc4173_cardu_id_table,
 601 };
 602
 603 static int __devinit vrc4173_cardu_init(void)
 604 {
 605         vrc4173_cardu_slots = 0;
 606
 607         return pci_module_init(&vrc4173_cardu_driver);
 608 }
 609
 610 static void __devexit vrc4173_cardu_exit(void)
 611 {
 612         pci_unregister_driver(&vrc4173_cardu_driver);
 613 }
 614
 615 module_init(vrc4173_cardu_init);
 616 module_exit(vrc4173_cardu_exit);
 617 MODULE_DEVICE_TABLE(pci, vrc4173_cardu_id_table);