drivers/pcmcia/i82092.c

   1 /*
   2  * Driver for Intel I82092AA PCI-PCMCIA bridge.
   3  *
   4  * (C) 2001 Red Hat, Inc.
   5  *
   6  * Author: Arjan Van De Ven <arjanv@redhat.com>
   7  * Loosly based on i82365.c from the pcmcia-cs package
   8  */
   9
  10 #include <linux/kernel.h>
  11 #include <linux/module.h>
  12 #include <linux/pci.h>
  13 #include <linux/init.h>
  14 #include <linux/workqueue.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/device.h>
  17
  18 #include <pcmcia/ss.h>
  19
  20 #include <asm/system.h>
  21 #include <asm/io.h>
  22
  23 #include "i82092aa.h"
  24 #include "i82365.h"
  25
  26 MODULE_LICENSE("GPL");
  27
  28 /* PCI core routines */
  29 static struct pci_device_id i82092aa_pci_ids[] = {
  30         {
  31               .vendor = PCI_VENDOR_ID_INTEL,
  32               .device = PCI_DEVICE_ID_INTEL_82092AA_0,
  33               .subvendor = PCI_ANY_ID,
  34               .subdevice = PCI_ANY_ID,
  35          },
  36          {}
  37 };
  38 MODULE_DEVICE_TABLE(pci, i82092aa_pci_ids);
  39
  40 static struct pci_driver i82092aa_pci_driver = {
  41         .name           = "i82092aa",
  42         .id_table       = i82092aa_pci_ids,
  43         .probe          = i82092aa_pci_probe,
  44         .remove         = __devexit_p(i82092aa_pci_remove),
  45 };
  46
  47
  48 /* the pccard structure and its functions */
  49 static struct pccard_operations i82092aa_operations = {
  50         .init                   = i82092aa_init,
  51         .get_status             = i82092aa_get_status,
  52         .set_socket             = i82092aa_set_socket,
  53         .set_io_map             = i82092aa_set_io_map,
  54         .set_mem_map            = i82092aa_set_mem_map,
  55 };
  56
  57 /* The card can do up to 4 sockets, allocate a structure for each of them */
  58
  59 struct socket_info {
  60         int     number;
  61         int     card_state;     /*  0 = no socket,
  62                                     1 = empty socket,
  63                                     2 = card but not initialized,
  64                                     3 = operational card */
  65         unsigned int io_base;   /* base io address of the socket */
  66
  67         struct pcmcia_socket socket;
  68         struct pci_dev *dev;    /* The PCI device for the socket */
  69 };
  70
  71 #define MAX_SOCKETS 4
  72 static struct socket_info sockets[MAX_SOCKETS];
  73 static int socket_count;  /* shortcut */
  74
  75
  76 static int __devinit i82092aa_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
  77 {
  78         unsigned char configbyte;
  79         int i, ret;
  80
  81         enter("i82092aa_pci_probe");
  82
  83         if ((ret = pci_enable_device(dev)))
  84                 return ret;
  85
  86         pci_read_config_byte(dev, 0x40, &configbyte);  /* PCI Configuration Control */
  87         switch(configbyte&6) {
  88                 case 0:
  89                         socket_count = 2;
  90                         break;
  91                 case 2:
  92                         socket_count = 1;
  93                         break;
  94                 case 4:
  95                 case 6:
  96                         socket_count = 4;
  97                         break;
  98
  99                 default:
 100                         printk(KERN_ERR "i82092aa: Oops, you did something we didn't think of.\n");
 101                         ret = -EIO;
 102                         goto err_out_disable;
 103         }
 104         printk(KERN_INFO "i82092aa: configured as a %d socket device.\n", socket_count);
 105
 106         if (!request_region(pci_resource_start(dev, 0), 2, "i82092aa")) {
 107                 ret = -EBUSY;
 108                 goto err_out_disable;
 109         }
 110
 111         for (i = 0;i<socket_count;i++) {
 112                 sockets[i].card_state = 1; /* 1 = present but empty */
 113                 sockets[i].io_base = pci_resource_start(dev, 0);
 114                 sockets[i].socket.features |= SS_CAP_PCCARD;
 115                 sockets[i].socket.map_size = 0x1000;
 116                 sockets[i].socket.irq_mask = 0;
 117                 sockets[i].socket.pci_irq  = dev->irq;
 118                 sockets[i].socket.cb_dev  = dev;
 119                 sockets[i].socket.owner = THIS_MODULE;
 120
 121                 sockets[i].number = i;
 122
 123                 if (card_present(i)) {
 124                         sockets[i].card_state = 3;
 125                         dprintk(KERN_DEBUG "i82092aa: slot %i is occupied\n",i);
 126                 } else {
 127                         dprintk(KERN_DEBUG "i82092aa: slot %i is vacant\n",i);
 128                 }
 129         }
 130
 131         /* Now, specifiy that all interrupts are to be done as PCI interrupts */
 132         configbyte = 0xFF; /* bitmask, one bit per event, 1 = PCI interrupt, 0 = ISA interrupt */
 133         pci_write_config_byte(dev, 0x50, configbyte); /* PCI Interrupt Routing Register */
 134
 135         /* Register the interrupt handler */
 136         dprintk(KERN_DEBUG "Requesting interrupt %i \n",dev->irq);
 137         if ((ret = request_irq(dev->irq, i82092aa_interrupt, IRQF_SHARED, "i82092aa", i82092aa_interrupt))) {
 138                 printk(KERN_ERR "i82092aa: Failed to register IRQ %d, aborting\n", dev->irq);
 139                 goto err_out_free_res;
 140         }
 141
 142         pci_set_drvdata(dev, &sockets[i].socket);
 143
 144         for (i = 0; i<socket_count; i++) {
 145                 sockets[i].socket.dev.parent = &dev->dev;
 146                 sockets[i].socket.ops = &i82092aa_operations;
 147                 sockets[i].socket.resource_ops = &pccard_nonstatic_ops;
 148                 ret = pcmcia_register_socket(&sockets[i].socket);
 149                 if (ret) {
 150                         goto err_out_free_sockets;
 151                 }
 152         }
 153
 154         leave("i82092aa_pci_probe");
 155         return 0;
 156
 157 err_out_free_sockets:
 158         if (i) {
 159                 for (i--;i>=0;i--) {
 160                         pcmcia_unregister_socket(&sockets[i].socket);
 161                 }
 162         }
 163         free_irq(dev->irq, i82092aa_interrupt);
 164 err_out_free_res:
 165         release_region(pci_resource_start(dev, 0), 2);
 166 err_out_disable:
 167         pci_disable_device(dev);
 168         return ret;
 169 }
 170
 171 static void __devexit i82092aa_pci_remove(struct pci_dev *dev)
 172 {
 173         struct pcmcia_socket *socket = pci_get_drvdata(dev);
 174
 175         enter("i82092aa_pci_remove");
 176
 177         free_irq(dev->irq, i82092aa_interrupt);
 178
 179         if (socket)
 180                 pcmcia_unregister_socket(socket);
 181
 182         leave("i82092aa_pci_remove");
 183 }
 184
 185 static DEFINE_SPINLOCK(port_lock);
 186
 187 /* basic value read/write functions */
 188
 189 static unsigned char indirect_read(int socket, unsigned short reg)
 190 {
 191         unsigned short int port;
 192         unsigned char val;
 193         unsigned long flags;
 194         spin_lock_irqsave(&port_lock,flags);
 195         reg += socket * 0x40;
 196         port = sockets[socket].io_base;
 197         outb(reg,port);
 198         val = inb(port+1);
 199         spin_unlock_irqrestore(&port_lock,flags);
 200         return val;
 201 }
 202
 203 #if 0
 204 static unsigned short indirect_read16(int socket, unsigned short reg)
 205 {
 206         unsigned short int port;
 207         unsigned short tmp;
 208         unsigned long flags;
 209         spin_lock_irqsave(&port_lock,flags);
 210         reg  = reg + socket * 0x40;
 211         port = sockets[socket].io_base;
 212         outb(reg,port);
 213         tmp = inb(port+1);
 214         reg++;
 215         outb(reg,port);
 216         tmp = tmp | (inb(port+1)<<8);
 217         spin_unlock_irqrestore(&port_lock,flags);
 218         return tmp;
 219 }
 220 #endif
 221
 222 static void indirect_write(int socket, unsigned short reg, unsigned char value)
 223 {
 224         unsigned short int port;
 225         unsigned long flags;
 226         spin_lock_irqsave(&port_lock,flags);
 227         reg = reg + socket * 0x40;
 228         port = sockets[socket].io_base;
 229         outb(reg,port);
 230         outb(value,port+1);
 231         spin_unlock_irqrestore(&port_lock,flags);
 232 }
 233
 234 static void indirect_setbit(int socket, unsigned short reg, unsigned char mask)
 235 {
 236         unsigned short int port;
 237         unsigned char val;
 238         unsigned long flags;
 239         spin_lock_irqsave(&port_lock,flags);
 240         reg = reg + socket * 0x40;
 241         port = sockets[socket].io_base;
 242         outb(reg,port);
 243         val = inb(port+1);
 244         val |= mask;
 245         outb(reg,port);
 246         outb(val,port+1);
 247         spin_unlock_irqrestore(&port_lock,flags);
 248 }
 249
 250
 251 static void indirect_resetbit(int socket, unsigned short reg, unsigned char mask)
 252 {
 253         unsigned short int port;
 254         unsigned char val;
 255         unsigned long flags;
 256         spin_lock_irqsave(&port_lock,flags);
 257         reg = reg + socket * 0x40;
 258         port = sockets[socket].io_base;
 259         outb(reg,port);
 260         val = inb(port+1);
 261         val &= ~mask;
 262         outb(reg,port);
 263         outb(val,port+1);
 264         spin_unlock_irqrestore(&port_lock,flags);
 265 }
 266
 267 static void indirect_write16(int socket, unsigned short reg, unsigned short value)
 268 {
 269         unsigned short int port;
 270         unsigned char val;
 271         unsigned long flags;
 272         spin_lock_irqsave(&port_lock,flags);
 273         reg = reg + socket * 0x40;
 274         port = sockets[socket].io_base;
 275
 276         outb(reg,port);
 277         val = value & 255;
 278         outb(val,port+1);
 279
 280         reg++;
 281
 282         outb(reg,port);
 283         val = value>>8;
 284         outb(val,port+1);
 285         spin_unlock_irqrestore(&port_lock,flags);
 286 }
 287
 288 /* simple helper functions */
 289 /* External clock time, in nanoseconds.  120 ns = 8.33 MHz */
 290 static int cycle_time = 120;
 291
 292 static int to_cycles(int ns)
 293 {
 294         if (cycle_time!=0)
 295                 return ns/cycle_time;
 296         else
 297                 return 0;
 298 }
 299
 300
 301 /* Interrupt handler functionality */
 302
 303 static irqreturn_t i82092aa_interrupt(int irq, void *dev)
 304 {
 305         int i;
 306         int loopcount = 0;
 307         int handled = 0;
 308
 309         unsigned int events, active=0;
 310
 311 /*      enter("i82092aa_interrupt");*/
 312
 313         while (1) {
 314                 loopcount++;
 315                 if (loopcount>20) {
 316                         printk(KERN_ERR "i82092aa: infinite eventloop in interrupt \n");
 317                         break;
 318                 }
 319
 320                 active = 0;
 321
 322                 for (i=0;i<socket_count;i++) {
 323                         int csc;
 324                         if (sockets[i].card_state==0) /* Inactive socket, should not happen */
 325                                 continue;
 326
 327                         csc = indirect_read(i,I365_CSC); /* card status change register */
 328
 329                         if (csc==0)  /* no events on this socket */
 330                                 continue;
 331                         handled = 1;
 332                         events = 0;
 333
 334                         if (csc & I365_CSC_DETECT) {
 335                                 events |= SS_DETECT;
 336                                 printk("Card detected in socket %i!\n",i);
 337                          }
 338
 339                         if (indirect_read(i,I365_INTCTL) & I365_PC_IOCARD) {
 340                                 /* For IO/CARDS, bit 0 means "read the card" */
 341                                 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
 342                         } else {
 343                                 /* Check for battery/ready events */
 344                                 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
 345                                 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
 346                                 events |= (csc & I365_CSC_READY) ? SS_READY : 0;
 347                         }
 348
 349                         if (events) {
 350                                 pcmcia_parse_events(&sockets[i].socket, events);
 351                         }
 352                         active |= events;
 353                 }
 354
 355                 if (active==0) /* no more events to handle */
 356                         break;
 357
 358         }
 359         return IRQ_RETVAL(handled);
 360 /*      leave("i82092aa_interrupt");*/
 361 }
 362
 363
 364
 365 /* socket functions */
 366
 367 static int card_present(int socketno)
 368 {
 369         unsigned int val;
 370         enter("card_present");
 371
 372         if ((socketno<0) || (socketno >= MAX_SOCKETS))
 373                 return 0;
 374         if (sockets[socketno].io_base == 0)
 375                 return 0;
 376
 377
 378         val = indirect_read(socketno, 1); /* Interface status register */
 379         if ((val&12)==12) {
 380                 leave("card_present 1");
 381                 return 1;
 382         }
 383
 384         leave("card_present 0");
 385         return 0;
 386 }
 387
 388 static void set_bridge_state(int sock)
 389 {
 390         enter("set_bridge_state");
 391         indirect_write(sock, I365_GBLCTL,0x00);
 392         indirect_write(sock, I365_GENCTL,0x00);
 393
 394         indirect_setbit(sock, I365_INTCTL,0x08);
 395         leave("set_bridge_state");
 396 }
 397
 398
 399
 400
 401
 402
 403 static int i82092aa_init(struct pcmcia_socket *sock)
 404 {
 405         int i;
 406         struct resource res = { .start = 0, .end = 0x0fff };
 407         pccard_io_map io = { 0, 0, 0, 0, 1 };
 408         pccard_mem_map mem = { .res = &res, };
 409
 410         enter("i82092aa_init");
 411
 412         for (i = 0; i < 2; i++) {
 413                 io.map = i;
 414                 i82092aa_set_io_map(sock, &io);
 415         }
 416         for (i = 0; i < 5; i++) {
 417                 mem.map = i;
 418                 i82092aa_set_mem_map(sock, &mem);
 419         }
 420
 421         leave("i82092aa_init");
 422         return 0;
 423 }
 424
 425 static int i82092aa_get_status(struct pcmcia_socket *socket, u_int *value)
 426 {
 427         unsigned int sock = container_of(socket, struct socket_info, socket)->number;
 428         unsigned int status;
 429
 430         enter("i82092aa_get_status");
 431
 432         status = indirect_read(sock,I365_STATUS); /* Interface Status Register */
 433         *value = 0;
 434
 435         if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
 436                 *value |= SS_DETECT;
 437         }
 438
 439         /* IO cards have a different meaning of bits 0,1 */
 440         /* Also notice the inverse-logic on the bits */
 441          if (indirect_read(sock, I365_INTCTL) & I365_PC_IOCARD) {
 442                 /* IO card */
 443                 if (!(status & I365_CS_STSCHG))
 444                         *value |= SS_STSCHG;
 445          } else { /* non I/O card */
 446                 if (!(status & I365_CS_BVD1))
 447                         *value |= SS_BATDEAD;
 448                 if (!(status & I365_CS_BVD2))
 449                         *value |= SS_BATWARN;
 450
 451          }
 452
 453          if (status & I365_CS_WRPROT)
 454                 (*value) |= SS_WRPROT;  /* card is write protected */
 455
 456          if (status & I365_CS_READY)
 457                 (*value) |= SS_READY;    /* card is not busy */
 458
 459          if (status & I365_CS_POWERON)
 460                 (*value) |= SS_POWERON;  /* power is applied to the card */
 461
 462
 463         leave("i82092aa_get_status");
 464         return 0;
 465 }
 466
 467
 468 static int i82092aa_set_socket(struct pcmcia_socket *socket, socket_state_t *state)
 469 {
 470         unsigned int sock = container_of(socket, struct socket_info, socket)->number;
 471         unsigned char reg;
 472
 473         enter("i82092aa_set_socket");
 474
 475         /* First, set the global controller options */
 476
 477         set_bridge_state(sock);
 478
 479         /* Values for the IGENC register */
 480
 481         reg = 0;
 482         if (!(state->flags & SS_RESET))         /* The reset bit has "inverse" logic */
 483                 reg = reg | I365_PC_RESET;
 484         if (state->flags & SS_IOCARD)
 485                 reg = reg | I365_PC_IOCARD;
 486
 487         indirect_write(sock,I365_INTCTL,reg); /* IGENC, Interrupt and General Control Register */
 488
 489         /* Power registers */
 490
 491         reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
 492
 493         if (state->flags & SS_PWR_AUTO) {
 494                 printk("Auto power\n");
 495                 reg |= I365_PWR_AUTO;   /* automatic power mngmnt */
 496         }
 497         if (state->flags & SS_OUTPUT_ENA) {
 498                 printk("Power Enabled \n");
 499                 reg |= I365_PWR_OUT;    /* enable power */
 500         }
 501
 502         switch (state->Vcc) {
 503                 case 0:
 504                         break;
 505                 case 50:
 506                         printk("setting voltage to Vcc to 5V on socket %i\n",sock);
 507                         reg |= I365_VCC_5V;
 508                         break;
 509                 default:
 510                         printk("i82092aa: i82092aa_set_socket called with invalid VCC power value: %i ", state->Vcc);
 511                         leave("i82092aa_set_socket");
 512                         return -EINVAL;
 513         }
 514
 515
 516         switch (state->Vpp) {
 517                 case 0:
 518                         printk("not setting Vpp on socket %i\n",sock);
 519                         break;
 520                 case 50:
 521                         printk("setting Vpp to 5.0 for socket %i\n",sock);
 522                         reg |= I365_VPP1_5V | I365_VPP2_5V;
 523                         break;
 524                 case 120:
 525                         printk("setting Vpp to 12.0\n");
 526                         reg |= I365_VPP1_12V | I365_VPP2_12V;
 527                         break;
 528                 default:
 529                         printk("i82092aa: i82092aa_set_socket called with invalid VPP power value: %i ", state->Vcc);
 530                         leave("i82092aa_set_socket");
 531                         return -EINVAL;
 532         }
 533
 534         if (reg != indirect_read(sock,I365_POWER)) /* only write if changed */
 535                 indirect_write(sock,I365_POWER,reg);
 536
 537         /* Enable specific interrupt events */
 538
 539         reg = 0x00;
 540         if (state->csc_mask & SS_DETECT) {
 541                 reg |= I365_CSC_DETECT;
 542         }
 543         if (state->flags & SS_IOCARD) {
 544                 if (state->csc_mask & SS_STSCHG)
 545                         reg |= I365_CSC_STSCHG;
 546         } else {
 547                 if (state->csc_mask & SS_BATDEAD)
 548                         reg |= I365_CSC_BVD1;
 549                 if (state->csc_mask & SS_BATWARN)
 550                         reg |= I365_CSC_BVD2;
 551                 if (state->csc_mask & SS_READY)
 552                         reg |= I365_CSC_READY;
 553
 554         }
 555
 556         /* now write the value and clear the (probably bogus) pending stuff by doing a dummy read*/
 557
 558         indirect_write(sock,I365_CSCINT,reg);
 559         (void)indirect_read(sock,I365_CSC);
 560
 561         leave("i82092aa_set_socket");
 562         return 0;
 563 }
 564
 565 static int i82092aa_set_io_map(struct pcmcia_socket *socket, struct pccard_io_map *io)
 566 {
 567         unsigned int sock = container_of(socket, struct socket_info, socket)->number;
 568         unsigned char map, ioctl;
 569
 570         enter("i82092aa_set_io_map");
 571
 572         map = io->map;
 573
 574         /* Check error conditions */
 575         if (map > 1) {
 576                 leave("i82092aa_set_io_map with invalid map");
 577                 return -EINVAL;
 578         }
 579         if ((io->start > 0xffff) || (io->stop > 0xffff) || (io->stop < io->start)){
 580                 leave("i82092aa_set_io_map with invalid io");
 581                 return -EINVAL;
 582         }
 583
 584         /* Turn off the window before changing anything */
 585         if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_IO(map))
 586                 indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_IO(map));
 587
 588 /*      printk("set_io_map: Setting range to %x - %x \n",io->start,io->stop);  */
 589
 590         /* write the new values */
 591         indirect_write16(sock,I365_IO(map)+I365_W_START,io->start);
 592         indirect_write16(sock,I365_IO(map)+I365_W_STOP,io->stop);
 593
 594         ioctl = indirect_read(sock,I365_IOCTL) & ~I365_IOCTL_MASK(map);
 595
 596         if (io->flags & (MAP_16BIT|MAP_AUTOSZ))
 597                 ioctl |= I365_IOCTL_16BIT(map);
 598
 599         indirect_write(sock,I365_IOCTL,ioctl);
 600
 601         /* Turn the window back on if needed */
 602         if (io->flags & MAP_ACTIVE)
 603                 indirect_setbit(sock,I365_ADDRWIN,I365_ENA_IO(map));
 604
 605         leave("i82092aa_set_io_map");
 606         return 0;
 607 }
 608
 609 static int i82092aa_set_mem_map(struct pcmcia_socket *socket, struct pccard_mem_map *mem)
 610 {
 611         struct socket_info *sock_info = container_of(socket, struct socket_info, socket);
 612         unsigned int sock = sock_info->number;
 613         struct pci_bus_region region;
 614         unsigned short base, i;
 615         unsigned char map;
 616
 617         enter("i82092aa_set_mem_map");
 618
 619         pcibios_resource_to_bus(sock_info->dev, &region, mem->res);
 620
 621         map = mem->map;
 622         if (map > 4) {
 623                 leave("i82092aa_set_mem_map: invalid map");
 624                 return -EINVAL;
 625         }
 626
 627
 628         if ( (mem->card_start > 0x3ffffff) || (region.start > region.end) ||
 629              (mem->speed > 1000) ) {
 630                 leave("i82092aa_set_mem_map: invalid address / speed");
 631                 printk("invalid mem map for socket %i: %llx to %llx with a "
 632                         "start of %x\n",
 633                         sock,
 634                         (unsigned long long)region.start,
 635                         (unsigned long long)region.end,
 636                         mem->card_start);
 637                 return -EINVAL;
 638         }
 639
 640         /* Turn off the window before changing anything */
 641         if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
 642                       indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
 643
 644
 645 /*      printk("set_mem_map: Setting map %i range to %x - %x on socket %i, speed is %i, active = %i \n",map, region.start,region.end,sock,mem->speed,mem->flags & MAP_ACTIVE);  */
 646
 647         /* write the start address */
 648         base = I365_MEM(map);
 649         i = (region.start >> 12) & 0x0fff;
 650         if (mem->flags & MAP_16BIT)
 651                 i |= I365_MEM_16BIT;
 652         if (mem->flags & MAP_0WS)
 653                 i |= I365_MEM_0WS;
 654         indirect_write16(sock,base+I365_W_START,i);
 655
 656         /* write the stop address */
 657
 658         i= (region.end >> 12) & 0x0fff;
 659         switch (to_cycles(mem->speed)) {
 660                 case 0:
 661                         break;
 662                 case 1:
 663                         i |= I365_MEM_WS0;
 664                         break;
 665                 case 2:
 666                         i |= I365_MEM_WS1;
 667                         break;
 668                 default:
 669                         i |= I365_MEM_WS1 | I365_MEM_WS0;
 670                         break;
 671         }
 672
 673         indirect_write16(sock,base+I365_W_STOP,i);
 674
 675         /* card start */
 676
 677         i = ((mem->card_start - region.start) >> 12) & 0x3fff;
 678         if (mem->flags & MAP_WRPROT)
 679                 i |= I365_MEM_WRPROT;
 680         if (mem->flags & MAP_ATTRIB) {
 681 /*              printk("requesting attribute memory for socket %i\n",sock);*/
 682                 i |= I365_MEM_REG;
 683         } else {
 684 /*              printk("requesting normal memory for socket %i\n",sock);*/
 685         }
 686         indirect_write16(sock,base+I365_W_OFF,i);
 687
 688         /* Enable the window if necessary */
 689         if (mem->flags & MAP_ACTIVE)
 690                 indirect_setbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
 691
 692         leave("i82092aa_set_mem_map");
 693         return 0;
 694 }
 695
 696 static int i82092aa_module_init(void)
 697 {
 698         return pci_register_driver(&i82092aa_pci_driver);
 699 }
 700
 701 static void i82092aa_module_exit(void)
 702 {
 703         enter("i82092aa_module_exit");
 704         pci_unregister_driver(&i82092aa_pci_driver);
 705         if (sockets[0].io_base>0)
 706                          release_region(sockets[0].io_base, 2);
 707         leave("i82092aa_module_exit");
 708 }
 709
 710 module_init(i82092aa_module_init);
 711 module_exit(i82092aa_module_exit);
 712