git.oblomov.eu Git - linux-2.6/blob - drivers/pcmcia/vrc4171_card.c

   1 /*
   2  * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
   3  *
   4  * Copyright (C) 2003-2005  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #include <linux/init.h>
  21 #include <linux/ioport.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/module.h>
  24 #include <linux/spinlock.h>
  25 #include <linux/types.h>
  26 #include <linux/platform_device.h>
  27
  28 #include <asm/io.h>
  29
  30 #include <pcmcia/ss.h>
  31
  32 #include "i82365.h"
  33
  34 MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
  35 MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
  36 MODULE_LICENSE("GPL");
  37
  38 #define CARD_MAX_SLOTS          2
  39 #define CARD_SLOTA              0
  40 #define CARD_SLOTB              1
  41 #define CARD_SLOTB_OFFSET       0x40
  42
  43 #define CARD_MEM_START          0x10000000
  44 #define CARD_MEM_END            0x13ffffff
  45 #define CARD_MAX_MEM_OFFSET     0x3ffffff
  46 #define CARD_MAX_MEM_SPEED      1000
  47
  48 #define CARD_CONTROLLER_INDEX   0x03e0
  49 #define CARD_CONTROLLER_DATA    0x03e1
  50  /* Power register */
  51   #define VPP_GET_VCC           0x01
  52   #define POWER_ENABLE          0x10
  53  #define CARD_VOLTAGE_SENSE     0x1f
  54   #define VCC_3VORXV_CAPABLE    0x00
  55   #define VCC_XV_ONLY           0x01
  56   #define VCC_3V_CAPABLE        0x02
  57   #define VCC_5V_ONLY           0x03
  58  #define CARD_VOLTAGE_SELECT    0x2f
  59   #define VCC_3V                0x01
  60   #define VCC_5V                0x00
  61   #define VCC_XV                0x02
  62   #define VCC_STATUS_3V         0x02
  63   #define VCC_STATUS_5V         0x01
  64   #define VCC_STATUS_XV         0x03
  65  #define GLOBAL_CONTROL         0x1e
  66   #define EXWRBK                0x04
  67   #define IRQPM_EN              0x08
  68   #define CLRPMIRQ              0x10
  69
  70 #define INTERRUPT_STATUS        0x05fa
  71  #define IRQ_A                  0x02
  72  #define IRQ_B                  0x04
  73
  74 #define CONFIGURATION1          0x05fe
  75  #define SLOTB_CONFIG           0xc000
  76  #define SLOTB_NONE             0x0000
  77  #define SLOTB_PCCARD           0x4000
  78  #define SLOTB_CF               0x8000
  79  #define SLOTB_FLASHROM         0xc000
  80
  81 #define CARD_CONTROLLER_START   CARD_CONTROLLER_INDEX
  82 #define CARD_CONTROLLER_END     CARD_CONTROLLER_DATA
  83
  84 #define IO_MAX_MAPS     2
  85 #define MEM_MAX_MAPS    5
  86
  87 typedef enum {
  88         SLOT_PROBE = 0,
  89         SLOT_NOPROBE_IO,
  90         SLOT_NOPROBE_MEM,
  91         SLOT_NOPROBE_ALL,
  92         SLOT_INITIALIZED,
  93 } vrc4171_slot_t;
  94
  95 typedef enum {
  96         SLOTB_IS_NONE,
  97         SLOTB_IS_PCCARD,
  98         SLOTB_IS_CF,
  99         SLOTB_IS_FLASHROM,
 100 } vrc4171_slotb_t;
 101
 102 typedef struct vrc4171_socket {
 103         vrc4171_slot_t slot;
 104         struct pcmcia_socket pcmcia_socket;
 105         char name[24];
 106         int csc_irq;
 107         int io_irq;
 108 } vrc4171_socket_t;
 109
 110 static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS];
 111 static vrc4171_slotb_t vrc4171_slotb = SLOTB_IS_NONE;
 112 static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
 113 static unsigned int vrc4171_irq;
 114 static uint16_t vrc4171_irq_mask = 0xdeb8;
 115
 116 static struct resource vrc4171_card_resource[3] = {
 117         {       .name           = vrc4171_card_name,
 118                 .start          = CARD_CONTROLLER_START,
 119                 .end            = CARD_CONTROLLER_END,
 120                 .flags          = IORESOURCE_IO,        },
 121         {       .name           = vrc4171_card_name,
 122                 .start          = INTERRUPT_STATUS,
 123                 .end            = INTERRUPT_STATUS,
 124                 .flags          = IORESOURCE_IO,        },
 125         {       .name           = vrc4171_card_name,
 126                 .start          = CONFIGURATION1,
 127                 .end            = CONFIGURATION1,
 128                 .flags          = IORESOURCE_IO,        },
 129 };
 130
 131 static struct platform_device vrc4171_card_device = {
 132         .name           = vrc4171_card_name,
 133         .id             = 0,
 134         .num_resources  = 3,
 135         .resource       = vrc4171_card_resource,
 136 };
 137
 138 static inline uint16_t vrc4171_get_irq_status(void)
 139 {
 140         return inw(INTERRUPT_STATUS);
 141 }
 142
 143 static inline void vrc4171_set_multifunction_pin(vrc4171_slotb_t config)
 144 {
 145         uint16_t config1;
 146
 147         config1 = inw(CONFIGURATION1);
 148         config1 &= ~SLOTB_CONFIG;
 149
 150         switch (config) {
 151         case SLOTB_IS_NONE:
 152                 config1 |= SLOTB_NONE;
 153                 break;
 154         case SLOTB_IS_PCCARD:
 155                 config1 |= SLOTB_PCCARD;
 156                 break;
 157         case SLOTB_IS_CF:
 158                 config1 |= SLOTB_CF;
 159                 break;
 160         case SLOTB_IS_FLASHROM:
 161                 config1 |= SLOTB_FLASHROM;
 162                 break;
 163         default:
 164                 break;
 165         }
 166
 167         outw(config1, CONFIGURATION1);
 168 }
 169
 170 static inline uint8_t exca_read_byte(int slot, uint8_t index)
 171 {
 172         if (slot == CARD_SLOTB)
 173                 index += CARD_SLOTB_OFFSET;
 174
 175         outb(index, CARD_CONTROLLER_INDEX);
 176         return inb(CARD_CONTROLLER_DATA);
 177 }
 178
 179 static inline uint16_t exca_read_word(int slot, uint8_t index)
 180 {
 181         uint16_t data;
 182
 183         if (slot == CARD_SLOTB)
 184                 index += CARD_SLOTB_OFFSET;
 185
 186         outb(index++, CARD_CONTROLLER_INDEX);
 187         data = inb(CARD_CONTROLLER_DATA);
 188
 189         outb(index, CARD_CONTROLLER_INDEX);
 190         data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
 191
 192         return data;
 193 }
 194
 195 static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
 196 {
 197         if (slot == CARD_SLOTB)
 198                 index += CARD_SLOTB_OFFSET;
 199
 200         outb(index, CARD_CONTROLLER_INDEX);
 201         outb(data, CARD_CONTROLLER_DATA);
 202
 203         return data;
 204 }
 205
 206 static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
 207 {
 208         if (slot == CARD_SLOTB)
 209                 index += CARD_SLOTB_OFFSET;
 210
 211         outb(index++, CARD_CONTROLLER_INDEX);
 212         outb(data, CARD_CONTROLLER_DATA);
 213
 214         outb(index, CARD_CONTROLLER_INDEX);
 215         outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
 216
 217         return data;
 218 }
 219
 220 static inline int search_nonuse_irq(void)
 221 {
 222         int i;
 223
 224         for (i = 0; i < 16; i++) {
 225                 if (vrc4171_irq_mask & (1 << i)) {
 226                         vrc4171_irq_mask &= ~(1 << i);
 227                         return i;
 228                 }
 229         }
 230
 231         return -1;
 232 }
 233
 234 static int pccard_init(struct pcmcia_socket *sock)
 235 {
 236         vrc4171_socket_t *socket;
 237         unsigned int slot;
 238
 239         sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
 240         sock->irq_mask = 0;
 241         sock->map_size = 0x1000;
 242         sock->pci_irq = vrc4171_irq;
 243
 244         slot = sock->sock;
 245         socket = &vrc4171_sockets[slot];
 246         socket->csc_irq = search_nonuse_irq();
 247         socket->io_irq = search_nonuse_irq();
 248
 249         return 0;
 250 }
 251
 252 static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
 253 {
 254         unsigned int slot;
 255         uint8_t status, sense;
 256         u_int val = 0;
 257
 258         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
 259                 return -EINVAL;
 260
 261         slot = sock->sock;
 262
 263         status = exca_read_byte(slot, I365_STATUS);
 264         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 265                 if (status & I365_CS_STSCHG)
 266                         val |= SS_STSCHG;
 267         } else {
 268                 if (!(status & I365_CS_BVD1))
 269                         val |= SS_BATDEAD;
 270                 else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 271                         val |= SS_BATWARN;
 272         }
 273         if ((status & I365_CS_DETECT) == I365_CS_DETECT)
 274                 val |= SS_DETECT;
 275         if (status & I365_CS_WRPROT)
 276                 val |= SS_WRPROT;
 277         if (status & I365_CS_READY)
 278                 val |= SS_READY;
 279         if (status & I365_CS_POWERON)
 280                 val |= SS_POWERON;
 281
 282         sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
 283         switch (sense) {
 284         case VCC_3VORXV_CAPABLE:
 285                 val |= SS_3VCARD | SS_XVCARD;
 286                 break;
 287         case VCC_XV_ONLY:
 288                 val |= SS_XVCARD;
 289                 break;
 290         case VCC_3V_CAPABLE:
 291                 val |= SS_3VCARD;
 292                 break;
 293         default:
 294                 /* 5V only */
 295                 break;
 296         }
 297
 298         *value = val;
 299
 300         return 0;
 301 }
 302
 303 static inline uint8_t set_Vcc_value(u_char Vcc)
 304 {
 305         switch (Vcc) {
 306         case 33:
 307                 return VCC_3V;
 308         case 50:
 309                 return VCC_5V;
 310         }
 311
 312         /* Small voltage is chosen for safety. */
 313         return VCC_3V;
 314 }
 315
 316 static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
 317 {
 318         vrc4171_socket_t *socket;
 319         unsigned int slot;
 320         uint8_t voltage, power, control, cscint;
 321
 322         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 323             (state->Vpp != state->Vcc && state->Vpp != 0) ||
 324             (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
 325                 return -EINVAL;
 326
 327         slot = sock->sock;
 328         socket = &vrc4171_sockets[slot];
 329
 330         spin_lock_irq(&sock->lock);
 331
 332         voltage = set_Vcc_value(state->Vcc);
 333         exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
 334
 335         power = POWER_ENABLE;
 336         if (state->Vpp == state->Vcc)
 337                 power |= VPP_GET_VCC;
 338         if (state->flags & SS_OUTPUT_ENA)
 339                 power |= I365_PWR_OUT;
 340         exca_write_byte(slot, I365_POWER, power);
 341
 342         control = 0;
 343         if (state->io_irq != 0)
 344                 control |= socket->io_irq;
 345         if (state->flags & SS_IOCARD)
 346                 control |= I365_PC_IOCARD;
 347         if (state->flags & SS_RESET)
 348                 control &= ~I365_PC_RESET;
 349         else
 350                 control |= I365_PC_RESET;
 351         exca_write_byte(slot, I365_INTCTL, control);
 352
 353         cscint = 0;
 354         exca_write_byte(slot, I365_CSCINT, cscint);
 355         exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
 356         if (state->csc_mask != 0)
 357                 cscint |= socket->csc_irq << 8;
 358         if (state->flags & SS_IOCARD) {
 359                 if (state->csc_mask & SS_STSCHG)
 360                         cscint |= I365_CSC_STSCHG;
 361         } else {
 362                 if (state->csc_mask & SS_BATDEAD)
 363                         cscint |= I365_CSC_BVD1;
 364                 if (state->csc_mask & SS_BATWARN)
 365                         cscint |= I365_CSC_BVD2;
 366         }
 367         if (state->csc_mask & SS_READY)
 368                 cscint |= I365_CSC_READY;
 369         if (state->csc_mask & SS_DETECT)
 370                 cscint |= I365_CSC_DETECT;
 371         exca_write_byte(slot, I365_CSCINT, cscint);
 372
 373         spin_unlock_irq(&sock->lock);
 374
 375         return 0;
 376 }
 377
 378 static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
 379 {
 380         unsigned int slot;
 381         uint8_t ioctl, addrwin;
 382         u_char map;
 383
 384         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 385             io == NULL || io->map >= IO_MAX_MAPS ||
 386             io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
 387                 return -EINVAL;
 388
 389         slot = sock->sock;
 390         map = io->map;
 391
 392         addrwin = exca_read_byte(slot, I365_ADDRWIN);
 393         if (addrwin & I365_ENA_IO(map)) {
 394                 addrwin &= ~I365_ENA_IO(map);
 395                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 396         }
 397
 398         exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
 399         exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
 400
 401         ioctl = 0;
 402         if (io->speed > 0)
 403                 ioctl |= I365_IOCTL_WAIT(map);
 404         if (io->flags & MAP_16BIT)
 405                 ioctl |= I365_IOCTL_16BIT(map);
 406         if (io->flags & MAP_AUTOSZ)
 407                 ioctl |= I365_IOCTL_IOCS16(map);
 408         if (io->flags & MAP_0WS)
 409                 ioctl |= I365_IOCTL_0WS(map);
 410         exca_write_byte(slot, I365_IOCTL, ioctl);
 411
 412         if (io->flags & MAP_ACTIVE) {
 413                 addrwin |= I365_ENA_IO(map);
 414                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 415         }
 416
 417         return 0;
 418 }
 419
 420 static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
 421 {
 422         unsigned int slot;
 423         uint16_t start, stop, offset;
 424         uint8_t addrwin;
 425         u_char map;
 426
 427         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 428             mem == NULL || mem->map >= MEM_MAX_MAPS ||
 429             mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
 430             mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
 431             mem->res->start > mem->res->end ||
 432             mem->card_start > CARD_MAX_MEM_OFFSET ||
 433             mem->speed > CARD_MAX_MEM_SPEED)
 434                 return -EINVAL;
 435
 436         slot = sock->sock;
 437         map = mem->map;
 438
 439         addrwin = exca_read_byte(slot, I365_ADDRWIN);
 440         if (addrwin & I365_ENA_MEM(map)) {
 441                 addrwin &= ~I365_ENA_MEM(map);
 442                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 443         }
 444
 445         start = (mem->res->start >> 12) & 0x3fff;
 446         if (mem->flags & MAP_16BIT)
 447                 start |= I365_MEM_16BIT;
 448         exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
 449
 450         stop = (mem->res->end >> 12) & 0x3fff;
 451         switch (mem->speed) {
 452         case 0:
 453                 break;
 454         case 1:
 455                 stop |= I365_MEM_WS0;
 456                 break;
 457         case 2:
 458                 stop |= I365_MEM_WS1;
 459                 break;
 460         default:
 461                 stop |= I365_MEM_WS0 | I365_MEM_WS1;
 462                 break;
 463         }
 464         exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
 465
 466         offset = (mem->card_start >> 12) & 0x3fff;
 467         if (mem->flags & MAP_ATTRIB)
 468                 offset |= I365_MEM_REG;
 469         if (mem->flags & MAP_WRPROT)
 470                 offset |= I365_MEM_WRPROT;
 471         exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
 472
 473         if (mem->flags & MAP_ACTIVE) {
 474                 addrwin |= I365_ENA_MEM(map);
 475                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 476         }
 477
 478         return 0;
 479 }
 480
 481 static struct pccard_operations vrc4171_pccard_operations = {
 482         .init                   = pccard_init,
 483         .get_status             = pccard_get_status,
 484         .set_socket             = pccard_set_socket,
 485         .set_io_map             = pccard_set_io_map,
 486         .set_mem_map            = pccard_set_mem_map,
 487 };
 488
 489 static inline unsigned int get_events(int slot)
 490 {
 491         unsigned int events = 0;
 492         uint8_t status, csc;
 493
 494         status = exca_read_byte(slot, I365_STATUS);
 495         csc = exca_read_byte(slot, I365_CSC);
 496
 497         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 498                 if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
 499                         events |= SS_STSCHG;
 500         } else {
 501                 if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
 502                         if (!(status & I365_CS_BVD1))
 503                                 events |= SS_BATDEAD;
 504                         else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 505                                 events |= SS_BATWARN;
 506                 }
 507         }
 508         if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
 509                 events |= SS_READY;
 510         if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
 511                 events |= SS_DETECT;
 512
 513         return events;
 514 }
 515
 516 static irqreturn_t pccard_interrupt(int irq, void *dev_id)
 517 {
 518         vrc4171_socket_t *socket;
 519         unsigned int events;
 520         irqreturn_t retval = IRQ_NONE;
 521         uint16_t status;
 522
 523         status = vrc4171_get_irq_status();
 524         if (status & IRQ_A) {
 525                 socket = &vrc4171_sockets[CARD_SLOTA];
 526                 if (socket->slot == SLOT_INITIALIZED) {
 527                         if (status & (1 << socket->csc_irq)) {
 528                                 events = get_events(CARD_SLOTA);
 529                                 if (events != 0) {
 530                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
 531                                         retval = IRQ_HANDLED;
 532                                 }
 533                         }
 534                 }
 535         }
 536
 537         if (status & IRQ_B) {
 538                 socket = &vrc4171_sockets[CARD_SLOTB];
 539                 if (socket->slot == SLOT_INITIALIZED) {
 540                         if (status & (1 << socket->csc_irq)) {
 541                                 events = get_events(CARD_SLOTB);
 542                                 if (events != 0) {
 543                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
 544                                         retval = IRQ_HANDLED;
 545                                 }
 546                         }
 547                 }
 548         }
 549
 550         return retval;
 551 }
 552
 553 static inline void reserve_using_irq(int slot)
 554 {
 555         unsigned int irq;
 556
 557         irq = exca_read_byte(slot, I365_INTCTL);
 558         irq &= 0x0f;
 559         vrc4171_irq_mask &= ~(1 << irq);
 560
 561         irq = exca_read_byte(slot, I365_CSCINT);
 562         irq = (irq & 0xf0) >> 4;
 563         vrc4171_irq_mask &= ~(1 << irq);
 564 }
 565
 566 static int __devinit vrc4171_add_sockets(void)
 567 {
 568         vrc4171_socket_t *socket;
 569         int slot, retval;
 570
 571         for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 572                 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 573                         continue;
 574
 575                 socket = &vrc4171_sockets[slot];
 576                 if (socket->slot != SLOT_PROBE) {
 577                         uint8_t addrwin;
 578
 579                         switch (socket->slot) {
 580                         case SLOT_NOPROBE_MEM:
 581                                 addrwin = exca_read_byte(slot, I365_ADDRWIN);
 582                                 addrwin &= 0x1f;
 583                                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 584                                 break;
 585                         case SLOT_NOPROBE_IO:
 586                                 addrwin = exca_read_byte(slot, I365_ADDRWIN);
 587                                 addrwin &= 0xc0;
 588                                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 589                                 break;
 590                         default:
 591                                 break;
 592                         }
 593
 594                         reserve_using_irq(slot);
 595                         continue;
 596                 }
 597
 598                 sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
 599                 socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
 600                 socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
 601                 socket->pcmcia_socket.owner = THIS_MODULE;
 602
 603                 retval = pcmcia_register_socket(&socket->pcmcia_socket);
 604                 if (retval < 0)
 605                         return retval;
 606
 607                 exca_write_byte(slot, I365_ADDRWIN, 0);
 608                 exca_write_byte(slot, GLOBAL_CONTROL, 0);
 609
 610                 socket->slot = SLOT_INITIALIZED;
 611         }
 612
 613         return 0;
 614 }
 615
 616 static void vrc4171_remove_sockets(void)
 617 {
 618         vrc4171_socket_t *socket;
 619         int slot;
 620
 621         for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 622                 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 623                         continue;
 624
 625                 socket = &vrc4171_sockets[slot];
 626                 if (socket->slot == SLOT_INITIALIZED)
 627                         pcmcia_unregister_socket(&socket->pcmcia_socket);
 628
 629                 socket->slot = SLOT_PROBE;
 630         }
 631 }
 632
 633 static int __devinit vrc4171_card_setup(char *options)
 634 {
 635         if (options == NULL || *options == '\0')
 636                 return 1;
 637
 638         if (strncmp(options, "irq:", 4) == 0) {
 639                 int irq;
 640                 options += 4;
 641                 irq = simple_strtoul(options, &options, 0);
 642                 if (irq >= 0 && irq < NR_IRQS)
 643                         vrc4171_irq = irq;
 644
 645                 if (*options != ',')
 646                         return 1;
 647                 options++;
 648         }
 649
 650         if (strncmp(options, "slota:", 6) == 0) {
 651                 options += 6;
 652                 if (*options != '\0') {
 653                         if (strncmp(options, "memnoprobe", 10) == 0) {
 654                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
 655                                 options += 10;
 656                         } else if (strncmp(options, "ionoprobe", 9) == 0) {
 657                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
 658                                 options += 9;
 659                         } else if ( strncmp(options, "noprobe", 7) == 0) {
 660                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
 661                                 options += 7;
 662                         }
 663
 664                         if (*options != ',')
 665                                 return 1;
 666                         options++;
 667                 } else
 668                         return 1;
 669
 670         }
 671
 672         if (strncmp(options, "slotb:", 6) == 0) {
 673                 options += 6;
 674                 if (*options != '\0') {
 675                         if (strncmp(options, "pccard", 6) == 0) {
 676                                 vrc4171_slotb = SLOTB_IS_PCCARD;
 677                                 options += 6;
 678                         } else if (strncmp(options, "cf", 2) == 0) {
 679                                 vrc4171_slotb = SLOTB_IS_CF;
 680                                 options += 2;
 681                         } else if (strncmp(options, "flashrom", 8) == 0) {
 682                                 vrc4171_slotb = SLOTB_IS_FLASHROM;
 683                                 options += 8;
 684                         } else if (strncmp(options, "none", 4) == 0) {
 685                                 vrc4171_slotb = SLOTB_IS_NONE;
 686                                 options += 4;
 687                         }
 688
 689                         if (*options != ',')
 690                                 return 1;
 691                         options++;
 692
 693                         if (strncmp(options, "memnoprobe", 10) == 0)
 694                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
 695                         if (strncmp(options, "ionoprobe", 9) == 0)
 696                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
 697                         if (strncmp(options, "noprobe", 7) == 0)
 698                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
 699                 }
 700         }
 701
 702         return 1;
 703 }
 704
 705 __setup("vrc4171_card=", vrc4171_card_setup);
 706
 707 static struct device_driver vrc4171_card_driver = {
 708         .name           = vrc4171_card_name,
 709         .bus            = &platform_bus_type,
 710         .suspend        = pcmcia_socket_dev_suspend,
 711         .resume         = pcmcia_socket_dev_resume,
 712 };
 713
 714 static int __devinit vrc4171_card_init(void)
 715 {
 716         int retval;
 717
 718         retval = driver_register(&vrc4171_card_driver);
 719         if (retval < 0)
 720                 return retval;
 721
 722         retval = platform_device_register(&vrc4171_card_device);
 723         if (retval < 0) {
 724                 driver_unregister(&vrc4171_card_driver);
 725                 return retval;
 726         }
 727
 728         vrc4171_set_multifunction_pin(vrc4171_slotb);
 729
 730         retval = vrc4171_add_sockets();
 731         if (retval == 0)
 732                 retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
 733                                      vrc4171_card_name, vrc4171_sockets);
 734
 735         if (retval < 0) {
 736                 vrc4171_remove_sockets();
 737                 platform_device_unregister(&vrc4171_card_device);
 738                 driver_unregister(&vrc4171_card_driver);
 739                 return retval;
 740         }
 741
 742         printk(KERN_INFO "%s, connected to IRQ %d\n", vrc4171_card_driver.name, vrc4171_irq);
 743
 744         return 0;
 745 }
 746
 747 static void __devexit vrc4171_card_exit(void)
 748 {
 749         free_irq(vrc4171_irq, vrc4171_sockets);
 750         vrc4171_remove_sockets();
 751         platform_device_unregister(&vrc4171_card_device);
 752         driver_unregister(&vrc4171_card_driver);
 753 }
 754
 755 module_init(vrc4171_card_init);
 756 module_exit(vrc4171_card_exit);