drivers/pcmcia/vrc4171_card.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
   4  *
   5  * Copyright (C) 2003-2005  Yoichi Yuasa <yuasa@linux-mips.org>
   6  */
   7 #include <linux/init.h>
   8 #include <linux/ioport.h>
   9 #include <linux/interrupt.h>
  10 #include <linux/module.h>
  11 #include <linux/spinlock.h>
  12 #include <linux/types.h>
  13 #include <linux/platform_device.h>
  14
  15 #include <asm/io.h>
  16
  17 #include <pcmcia/ss.h>
  18
  19 #include "i82365.h"
  20
  21 MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
  22 MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
  23 MODULE_LICENSE("GPL");
  24
  25 #define CARD_MAX_SLOTS          2
  26 #define CARD_SLOTA              0
  27 #define CARD_SLOTB              1
  28 #define CARD_SLOTB_OFFSET       0x40
  29
  30 #define CARD_MEM_START          0x10000000
  31 #define CARD_MEM_END            0x13ffffff
  32 #define CARD_MAX_MEM_OFFSET     0x3ffffff
  33 #define CARD_MAX_MEM_SPEED      1000
  34
  35 #define CARD_CONTROLLER_INDEX   0x03e0
  36 #define CARD_CONTROLLER_DATA    0x03e1
  37  /* Power register */
  38   #define VPP_GET_VCC           0x01
  39   #define POWER_ENABLE          0x10
  40  #define CARD_VOLTAGE_SENSE     0x1f
  41   #define VCC_3VORXV_CAPABLE    0x00
  42   #define VCC_XV_ONLY           0x01
  43   #define VCC_3V_CAPABLE        0x02
  44   #define VCC_5V_ONLY           0x03
  45  #define CARD_VOLTAGE_SELECT    0x2f
  46   #define VCC_3V                0x01
  47   #define VCC_5V                0x00
  48   #define VCC_XV                0x02
  49   #define VCC_STATUS_3V         0x02
  50   #define VCC_STATUS_5V         0x01
  51   #define VCC_STATUS_XV         0x03
  52  #define GLOBAL_CONTROL         0x1e
  53   #define EXWRBK                0x04
  54   #define IRQPM_EN              0x08
  55   #define CLRPMIRQ              0x10
  56
  57 #define INTERRUPT_STATUS        0x05fa
  58  #define IRQ_A                  0x02
  59  #define IRQ_B                  0x04
  60
  61 #define CONFIGURATION1          0x05fe
  62  #define SLOTB_CONFIG           0xc000
  63  #define SLOTB_NONE             0x0000
  64  #define SLOTB_PCCARD           0x4000
  65  #define SLOTB_CF               0x8000
  66  #define SLOTB_FLASHROM         0xc000
  67
  68 #define CARD_CONTROLLER_START   CARD_CONTROLLER_INDEX
  69 #define CARD_CONTROLLER_END     CARD_CONTROLLER_DATA
  70
  71 #define IO_MAX_MAPS     2
  72 #define MEM_MAX_MAPS    5
  73
  74 enum vrc4171_slot {
  75         SLOT_PROBE = 0,
  76         SLOT_NOPROBE_IO,
  77         SLOT_NOPROBE_MEM,
  78         SLOT_NOPROBE_ALL,
  79         SLOT_INITIALIZED,
  80 };
  81
  82 enum vrc4171_slotb {
  83         SLOTB_IS_NONE,
  84         SLOTB_IS_PCCARD,
  85         SLOTB_IS_CF,
  86         SLOTB_IS_FLASHROM,
  87 };
  88
  89 struct vrc4171_socket {
  90         enum vrc4171_slot slot;
  91         struct pcmcia_socket pcmcia_socket;
  92         char name[24];
  93         int csc_irq;
  94         int io_irq;
  95         spinlock_t lock;
  96 };
  97
  98 static struct vrc4171_socket vrc4171_sockets[CARD_MAX_SLOTS];
  99 static enum vrc4171_slotb vrc4171_slotb = SLOTB_IS_NONE;
 100 static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
 101 static unsigned int vrc4171_irq;
 102 static uint16_t vrc4171_irq_mask = 0xdeb8;
 103
 104 static struct resource vrc4171_card_resource[3] = {
 105         {       .name           = vrc4171_card_name,
 106                 .start          = CARD_CONTROLLER_START,
 107                 .end            = CARD_CONTROLLER_END,
 108                 .flags          = IORESOURCE_IO,        },
 109         {       .name           = vrc4171_card_name,
 110                 .start          = INTERRUPT_STATUS,
 111                 .end            = INTERRUPT_STATUS,
 112                 .flags          = IORESOURCE_IO,        },
 113         {       .name           = vrc4171_card_name,
 114                 .start          = CONFIGURATION1,
 115                 .end            = CONFIGURATION1,
 116                 .flags          = IORESOURCE_IO,        },
 117 };
 118
 119 static struct platform_device vrc4171_card_device = {
 120         .name           = vrc4171_card_name,
 121         .id             = 0,
 122         .num_resources  = 3,
 123         .resource       = vrc4171_card_resource,
 124 };
 125
 126 static inline uint16_t vrc4171_get_irq_status(void)
 127 {
 128         return inw(INTERRUPT_STATUS);
 129 }
 130
 131 static inline void vrc4171_set_multifunction_pin(enum vrc4171_slotb config)
 132 {
 133         uint16_t config1;
 134
 135         config1 = inw(CONFIGURATION1);
 136         config1 &= ~SLOTB_CONFIG;
 137
 138         switch (config) {
 139         case SLOTB_IS_NONE:
 140                 config1 |= SLOTB_NONE;
 141                 break;
 142         case SLOTB_IS_PCCARD:
 143                 config1 |= SLOTB_PCCARD;
 144                 break;
 145         case SLOTB_IS_CF:
 146                 config1 |= SLOTB_CF;
 147                 break;
 148         case SLOTB_IS_FLASHROM:
 149                 config1 |= SLOTB_FLASHROM;
 150                 break;
 151         default:
 152                 break;
 153         }
 154
 155         outw(config1, CONFIGURATION1);
 156 }
 157
 158 static inline uint8_t exca_read_byte(int slot, uint8_t index)
 159 {
 160         if (slot == CARD_SLOTB)
 161                 index += CARD_SLOTB_OFFSET;
 162
 163         outb(index, CARD_CONTROLLER_INDEX);
 164         return inb(CARD_CONTROLLER_DATA);
 165 }
 166
 167 static inline uint16_t exca_read_word(int slot, uint8_t index)
 168 {
 169         uint16_t data;
 170
 171         if (slot == CARD_SLOTB)
 172                 index += CARD_SLOTB_OFFSET;
 173
 174         outb(index++, CARD_CONTROLLER_INDEX);
 175         data = inb(CARD_CONTROLLER_DATA);
 176
 177         outb(index, CARD_CONTROLLER_INDEX);
 178         data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
 179
 180         return data;
 181 }
 182
 183 static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
 184 {
 185         if (slot == CARD_SLOTB)
 186                 index += CARD_SLOTB_OFFSET;
 187
 188         outb(index, CARD_CONTROLLER_INDEX);
 189         outb(data, CARD_CONTROLLER_DATA);
 190
 191         return data;
 192 }
 193
 194 static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
 195 {
 196         if (slot == CARD_SLOTB)
 197                 index += CARD_SLOTB_OFFSET;
 198
 199         outb(index++, CARD_CONTROLLER_INDEX);
 200         outb(data, CARD_CONTROLLER_DATA);
 201
 202         outb(index, CARD_CONTROLLER_INDEX);
 203         outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
 204
 205         return data;
 206 }
 207
 208 static inline int search_nonuse_irq(void)
 209 {
 210         int i;
 211
 212         for (i = 0; i < 16; i++) {
 213                 if (vrc4171_irq_mask & (1 << i)) {
 214                         vrc4171_irq_mask &= ~(1 << i);
 215                         return i;
 216                 }
 217         }
 218
 219         return -1;
 220 }
 221
 222 static int pccard_init(struct pcmcia_socket *sock)
 223 {
 224         struct vrc4171_socket *socket;
 225         unsigned int slot;
 226
 227         sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
 228         sock->irq_mask = 0;
 229         sock->map_size = 0x1000;
 230         sock->pci_irq = vrc4171_irq;
 231
 232         slot = sock->sock;
 233         socket = &vrc4171_sockets[slot];
 234         socket->csc_irq = search_nonuse_irq();
 235         socket->io_irq = search_nonuse_irq();
 236         spin_lock_init(&socket->lock);
 237
 238         return 0;
 239 }
 240
 241 static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
 242 {
 243         unsigned int slot;
 244         uint8_t status, sense;
 245         u_int val = 0;
 246
 247         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
 248                 return -EINVAL;
 249
 250         slot = sock->sock;
 251
 252         status = exca_read_byte(slot, I365_STATUS);
 253         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 254                 if (status & I365_CS_STSCHG)
 255                         val |= SS_STSCHG;
 256         } else {
 257                 if (!(status & I365_CS_BVD1))
 258                         val |= SS_BATDEAD;
 259                 else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 260                         val |= SS_BATWARN;
 261         }
 262         if ((status & I365_CS_DETECT) == I365_CS_DETECT)
 263                 val |= SS_DETECT;
 264         if (status & I365_CS_WRPROT)
 265                 val |= SS_WRPROT;
 266         if (status & I365_CS_READY)
 267                 val |= SS_READY;
 268         if (status & I365_CS_POWERON)
 269                 val |= SS_POWERON;
 270
 271         sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
 272         switch (sense) {
 273         case VCC_3VORXV_CAPABLE:
 274                 val |= SS_3VCARD | SS_XVCARD;
 275                 break;
 276         case VCC_XV_ONLY:
 277                 val |= SS_XVCARD;
 278                 break;
 279         case VCC_3V_CAPABLE:
 280                 val |= SS_3VCARD;
 281                 break;
 282         default:
 283                 /* 5V only */
 284                 break;
 285         }
 286
 287         *value = val;
 288
 289         return 0;
 290 }
 291
 292 static inline uint8_t set_Vcc_value(u_char Vcc)
 293 {
 294         switch (Vcc) {
 295         case 33:
 296                 return VCC_3V;
 297         case 50:
 298                 return VCC_5V;
 299         }
 300
 301         /* Small voltage is chosen for safety. */
 302         return VCC_3V;
 303 }
 304
 305 static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
 306 {
 307         struct vrc4171_socket *socket;
 308         unsigned int slot;
 309         uint8_t voltage, power, control, cscint;
 310
 311         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 312             (state->Vpp != state->Vcc && state->Vpp != 0) ||
 313             (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
 314                 return -EINVAL;
 315
 316         slot = sock->sock;
 317         socket = &vrc4171_sockets[slot];
 318
 319         spin_lock_irq(&socket->lock);
 320
 321         voltage = set_Vcc_value(state->Vcc);
 322         exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
 323
 324         power = POWER_ENABLE;
 325         if (state->Vpp == state->Vcc)
 326                 power |= VPP_GET_VCC;
 327         if (state->flags & SS_OUTPUT_ENA)
 328                 power |= I365_PWR_OUT;
 329         exca_write_byte(slot, I365_POWER, power);
 330
 331         control = 0;
 332         if (state->io_irq != 0)
 333                 control |= socket->io_irq;
 334         if (state->flags & SS_IOCARD)
 335                 control |= I365_PC_IOCARD;
 336         if (state->flags & SS_RESET)
 337                 control &= ~I365_PC_RESET;
 338         else
 339                 control |= I365_PC_RESET;
 340         exca_write_byte(slot, I365_INTCTL, control);
 341
 342         cscint = 0;
 343         exca_write_byte(slot, I365_CSCINT, cscint);
 344         exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
 345         if (state->csc_mask != 0)
 346                 cscint |= socket->csc_irq << 8;
 347         if (state->flags & SS_IOCARD) {
 348                 if (state->csc_mask & SS_STSCHG)
 349                         cscint |= I365_CSC_STSCHG;
 350         } else {
 351                 if (state->csc_mask & SS_BATDEAD)
 352                         cscint |= I365_CSC_BVD1;
 353                 if (state->csc_mask & SS_BATWARN)
 354                         cscint |= I365_CSC_BVD2;
 355         }
 356         if (state->csc_mask & SS_READY)
 357                 cscint |= I365_CSC_READY;
 358         if (state->csc_mask & SS_DETECT)
 359                 cscint |= I365_CSC_DETECT;
 360         exca_write_byte(slot, I365_CSCINT, cscint);
 361
 362         spin_unlock_irq(&socket->lock);
 363
 364         return 0;
 365 }
 366
 367 static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
 368 {
 369         unsigned int slot;
 370         uint8_t ioctl, addrwin;
 371         u_char map;
 372
 373         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 374             io == NULL || io->map >= IO_MAX_MAPS ||
 375             io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
 376                 return -EINVAL;
 377
 378         slot = sock->sock;
 379         map = io->map;
 380
 381         addrwin = exca_read_byte(slot, I365_ADDRWIN);
 382         if (addrwin & I365_ENA_IO(map)) {
 383                 addrwin &= ~I365_ENA_IO(map);
 384                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 385         }
 386
 387         exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
 388         exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
 389
 390         ioctl = 0;
 391         if (io->speed > 0)
 392                 ioctl |= I365_IOCTL_WAIT(map);
 393         if (io->flags & MAP_16BIT)
 394                 ioctl |= I365_IOCTL_16BIT(map);
 395         if (io->flags & MAP_AUTOSZ)
 396                 ioctl |= I365_IOCTL_IOCS16(map);
 397         if (io->flags & MAP_0WS)
 398                 ioctl |= I365_IOCTL_0WS(map);
 399         exca_write_byte(slot, I365_IOCTL, ioctl);
 400
 401         if (io->flags & MAP_ACTIVE) {
 402                 addrwin |= I365_ENA_IO(map);
 403                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 404         }
 405
 406         return 0;
 407 }
 408
 409 static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
 410 {
 411         unsigned int slot;
 412         uint16_t start, stop, offset;
 413         uint8_t addrwin;
 414         u_char map;
 415
 416         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 417             mem == NULL || mem->map >= MEM_MAX_MAPS ||
 418             mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
 419             mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
 420             mem->res->start > mem->res->end ||
 421             mem->card_start > CARD_MAX_MEM_OFFSET ||
 422             mem->speed > CARD_MAX_MEM_SPEED)
 423                 return -EINVAL;
 424
 425         slot = sock->sock;
 426         map = mem->map;
 427
 428         addrwin = exca_read_byte(slot, I365_ADDRWIN);
 429         if (addrwin & I365_ENA_MEM(map)) {
 430                 addrwin &= ~I365_ENA_MEM(map);
 431                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 432         }
 433
 434         start = (mem->res->start >> 12) & 0x3fff;
 435         if (mem->flags & MAP_16BIT)
 436                 start |= I365_MEM_16BIT;
 437         exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
 438
 439         stop = (mem->res->end >> 12) & 0x3fff;
 440         switch (mem->speed) {
 441         case 0:
 442                 break;
 443         case 1:
 444                 stop |= I365_MEM_WS0;
 445                 break;
 446         case 2:
 447                 stop |= I365_MEM_WS1;
 448                 break;
 449         default:
 450                 stop |= I365_MEM_WS0 | I365_MEM_WS1;
 451                 break;
 452         }
 453         exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
 454
 455         offset = (mem->card_start >> 12) & 0x3fff;
 456         if (mem->flags & MAP_ATTRIB)
 457                 offset |= I365_MEM_REG;
 458         if (mem->flags & MAP_WRPROT)
 459                 offset |= I365_MEM_WRPROT;
 460         exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
 461
 462         if (mem->flags & MAP_ACTIVE) {
 463                 addrwin |= I365_ENA_MEM(map);
 464                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 465         }
 466
 467         return 0;
 468 }
 469
 470 static struct pccard_operations vrc4171_pccard_operations = {
 471         .init                   = pccard_init,
 472         .get_status             = pccard_get_status,
 473         .set_socket             = pccard_set_socket,
 474         .set_io_map             = pccard_set_io_map,
 475         .set_mem_map            = pccard_set_mem_map,
 476 };
 477
 478 static inline unsigned int get_events(int slot)
 479 {
 480         unsigned int events = 0;
 481         uint8_t status, csc;
 482
 483         status = exca_read_byte(slot, I365_STATUS);
 484         csc = exca_read_byte(slot, I365_CSC);
 485
 486         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 487                 if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
 488                         events |= SS_STSCHG;
 489         } else {
 490                 if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
 491                         if (!(status & I365_CS_BVD1))
 492                                 events |= SS_BATDEAD;
 493                         else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 494                                 events |= SS_BATWARN;
 495                 }
 496         }
 497         if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
 498                 events |= SS_READY;
 499         if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
 500                 events |= SS_DETECT;
 501
 502         return events;
 503 }
 504
 505 static irqreturn_t pccard_interrupt(int irq, void *dev_id)
 506 {
 507         struct vrc4171_socket *socket;
 508         unsigned int events;
 509         irqreturn_t retval = IRQ_NONE;
 510         uint16_t status;
 511
 512         status = vrc4171_get_irq_status();
 513         if (status & IRQ_A) {
 514                 socket = &vrc4171_sockets[CARD_SLOTA];
 515                 if (socket->slot == SLOT_INITIALIZED) {
 516                         if (status & (1 << socket->csc_irq)) {
 517                                 events = get_events(CARD_SLOTA);
 518                                 if (events != 0) {
 519                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
 520                                         retval = IRQ_HANDLED;
 521                                 }
 522                         }
 523                 }
 524         }
 525
 526         if (status & IRQ_B) {
 527                 socket = &vrc4171_sockets[CARD_SLOTB];
 528                 if (socket->slot == SLOT_INITIALIZED) {
 529                         if (status & (1 << socket->csc_irq)) {
 530                                 events = get_events(CARD_SLOTB);
 531                                 if (events != 0) {
 532                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
 533                                         retval = IRQ_HANDLED;
 534                                 }
 535                         }
 536                 }
 537         }
 538
 539         return retval;
 540 }
 541
 542 static inline void reserve_using_irq(int slot)
 543 {
 544         unsigned int irq;
 545
 546         irq = exca_read_byte(slot, I365_INTCTL);
 547         irq &= 0x0f;
 548         vrc4171_irq_mask &= ~(1 << irq);
 549
 550         irq = exca_read_byte(slot, I365_CSCINT);
 551         irq = (irq & 0xf0) >> 4;
 552         vrc4171_irq_mask &= ~(1 << irq);
 553 }
 554
 555 static int vrc4171_add_sockets(void)
 556 {
 557         struct vrc4171_socket *socket;
 558         int slot, retval;
 559
 560         for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 561                 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 562                         continue;
 563
 564                 socket = &vrc4171_sockets[slot];
 565                 if (socket->slot != SLOT_PROBE) {
 566                         uint8_t addrwin;
 567
 568                         switch (socket->slot) {
 569                         case SLOT_NOPROBE_MEM:
 570                                 addrwin = exca_read_byte(slot, I365_ADDRWIN);
 571                                 addrwin &= 0x1f;
 572                                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 573                                 break;
 574                         case SLOT_NOPROBE_IO:
 575                                 addrwin = exca_read_byte(slot, I365_ADDRWIN);
 576                                 addrwin &= 0xc0;
 577                                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 578                                 break;
 579                         default:
 580                                 break;
 581                         }
 582
 583                         reserve_using_irq(slot);
 584                         continue;
 585                 }
 586
 587                 sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
 588                 socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
 589                 socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
 590                 socket->pcmcia_socket.owner = THIS_MODULE;
 591
 592                 retval = pcmcia_register_socket(&socket->pcmcia_socket);
 593                 if (retval < 0)
 594                         return retval;
 595
 596                 exca_write_byte(slot, I365_ADDRWIN, 0);
 597                 exca_write_byte(slot, GLOBAL_CONTROL, 0);
 598
 599                 socket->slot = SLOT_INITIALIZED;
 600         }
 601
 602         return 0;
 603 }
 604
 605 static void vrc4171_remove_sockets(void)
 606 {
 607         struct vrc4171_socket *socket;
 608         int slot;
 609
 610         for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 611                 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 612                         continue;
 613
 614                 socket = &vrc4171_sockets[slot];
 615                 if (socket->slot == SLOT_INITIALIZED)
 616                         pcmcia_unregister_socket(&socket->pcmcia_socket);
 617
 618                 socket->slot = SLOT_PROBE;
 619         }
 620 }
 621
 622 static int vrc4171_card_setup(char *options)
 623 {
 624         if (options == NULL || *options == '\0')
 625                 return 1;
 626
 627         if (strncmp(options, "irq:", 4) == 0) {
 628                 int irq;
 629                 options += 4;
 630                 irq = simple_strtoul(options, &options, 0);
 631                 if (irq >= 0 && irq < nr_irqs)
 632                         vrc4171_irq = irq;
 633
 634                 if (*options != ',')
 635                         return 1;
 636                 options++;
 637         }
 638
 639         if (strncmp(options, "slota:", 6) == 0) {
 640                 options += 6;
 641                 if (*options != '\0') {
 642                         if (strncmp(options, "memnoprobe", 10) == 0) {
 643                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
 644                                 options += 10;
 645                         } else if (strncmp(options, "ionoprobe", 9) == 0) {
 646                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
 647                                 options += 9;
 648                         } else if ( strncmp(options, "noprobe", 7) == 0) {
 649                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
 650                                 options += 7;
 651                         }
 652
 653                         if (*options != ',')
 654                                 return 1;
 655                         options++;
 656                 } else
 657                         return 1;
 658
 659         }
 660
 661         if (strncmp(options, "slotb:", 6) == 0) {
 662                 options += 6;
 663                 if (*options != '\0') {
 664                         if (strncmp(options, "pccard", 6) == 0) {
 665                                 vrc4171_slotb = SLOTB_IS_PCCARD;
 666                                 options += 6;
 667                         } else if (strncmp(options, "cf", 2) == 0) {
 668                                 vrc4171_slotb = SLOTB_IS_CF;
 669                                 options += 2;
 670                         } else if (strncmp(options, "flashrom", 8) == 0) {
 671                                 vrc4171_slotb = SLOTB_IS_FLASHROM;
 672                                 options += 8;
 673                         } else if (strncmp(options, "none", 4) == 0) {
 674                                 vrc4171_slotb = SLOTB_IS_NONE;
 675                                 options += 4;
 676                         }
 677
 678                         if (*options != ',')
 679                                 return 1;
 680                         options++;
 681
 682                         if (strncmp(options, "memnoprobe", 10) == 0)
 683                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
 684                         if (strncmp(options, "ionoprobe", 9) == 0)
 685                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
 686                         if (strncmp(options, "noprobe", 7) == 0)
 687                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
 688                 }
 689         }
 690
 691         return 1;
 692 }
 693
 694 __setup("vrc4171_card=", vrc4171_card_setup);
 695
 696 static struct platform_driver vrc4171_card_driver = {
 697         .driver = {
 698                 .name           = vrc4171_card_name,
 699         },
 700 };
 701
 702 static int vrc4171_card_init(void)
 703 {
 704         int retval;
 705
 706         retval = platform_driver_register(&vrc4171_card_driver);
 707         if (retval < 0)
 708                 return retval;
 709
 710         retval = platform_device_register(&vrc4171_card_device);
 711         if (retval < 0) {
 712                 platform_driver_unregister(&vrc4171_card_driver);
 713                 return retval;
 714         }
 715
 716         vrc4171_set_multifunction_pin(vrc4171_slotb);
 717
 718         retval = vrc4171_add_sockets();
 719         if (retval == 0)
 720                 retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
 721                                      vrc4171_card_name, vrc4171_sockets);
 722
 723         if (retval < 0) {
 724                 vrc4171_remove_sockets();
 725                 platform_device_unregister(&vrc4171_card_device);
 726                 platform_driver_unregister(&vrc4171_card_driver);
 727                 return retval;
 728         }
 729
 730         printk(KERN_INFO "%s, connected to IRQ %d\n",
 731                 vrc4171_card_driver.driver.name, vrc4171_irq);
 732
 733         return 0;
 734 }
 735
 736 static void vrc4171_card_exit(void)
 737 {
 738         free_irq(vrc4171_irq, vrc4171_sockets);
 739         vrc4171_remove_sockets();
 740         platform_device_unregister(&vrc4171_card_device);
 741         platform_driver_unregister(&vrc4171_card_driver);
 742 }
 743
 744 module_init(vrc4171_card_init);
 745 module_exit(vrc4171_card_exit);