drivers/pcmcia/vrc4171_card.c

   1 /*
   2  * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
   3  *
   4  * Copyright (C) 2003  Yoichi Yuasa <yuasa@hh.iij4u.or.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/sched.h>
  26 #include <linux/types.h>
  27
  28 #include <asm/io.h>
  29 #include <asm/vr41xx/vrc4171.h>
  30
  31 #include <pcmcia/ss.h>
  32
  33 #include "i82365.h"
  34
  35 MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
  36 MODULE_AUTHOR("Yoichi Yuasa <yuasa@hh.iij4u.or.jp>");
  37 MODULE_LICENSE("GPL");
  38
  39 #define CARD_MAX_SLOTS          2
  40 #define CARD_SLOTA              0
  41 #define CARD_SLOTB              1
  42 #define CARD_SLOTB_OFFSET       0x40
  43
  44 #define CARD_MEM_START          0x10000000
  45 #define CARD_MEM_END            0x13ffffff
  46 #define CARD_MAX_MEM_OFFSET     0x3ffffff
  47 #define CARD_MAX_MEM_SPEED      1000
  48
  49 #define CARD_CONTROLLER_INDEX   0x03e0
  50 #define CARD_CONTROLLER_DATA    0x03e1
  51 #define CARD_CONTROLLER_SIZE    2
  52  /* Power register */
  53   #define VPP_GET_VCC           0x01
  54   #define POWER_ENABLE          0x10
  55  #define CARD_VOLTAGE_SENSE     0x1f
  56   #define VCC_3VORXV_CAPABLE    0x00
  57   #define VCC_XV_ONLY           0x01
  58   #define VCC_3V_CAPABLE        0x02
  59   #define VCC_5V_ONLY           0x03
  60  #define CARD_VOLTAGE_SELECT    0x2f
  61   #define VCC_3V                0x01
  62   #define VCC_5V                0x00
  63   #define VCC_XV                0x02
  64   #define VCC_STATUS_3V         0x02
  65   #define VCC_STATUS_5V         0x01
  66   #define VCC_STATUS_XV         0x03
  67  #define GLOBAL_CONTROL         0x1e
  68   #define EXWRBK                0x04
  69   #define IRQPM_EN              0x08
  70   #define CLRPMIRQ              0x10
  71
  72 #define IO_MAX_MAPS     2
  73 #define MEM_MAX_MAPS    5
  74
  75 enum {
  76         SLOT_PROBE = 0,
  77         SLOT_NOPROBE_IO,
  78         SLOT_NOPROBE_MEM,
  79         SLOT_NOPROBE_ALL
  80 };
  81
  82 typedef struct vrc4171_socket {
  83         int noprobe;
  84         struct pcmcia_socket pcmcia_socket;
  85         char name[24];
  86         int csc_irq;
  87         int io_irq;
  88 } vrc4171_socket_t;
  89
  90 static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS];
  91 static int vrc4171_slotb = SLOTB_IS_NONE;
  92 static unsigned int vrc4171_irq;
  93 static uint16_t vrc4171_irq_mask = 0xdeb8;
  94
  95 static inline uint8_t exca_read_byte(int slot, uint8_t index)
  96 {
  97         if (slot == CARD_SLOTB)
  98                 index += CARD_SLOTB_OFFSET;
  99
 100         outb(index, CARD_CONTROLLER_INDEX);
 101         return inb(CARD_CONTROLLER_DATA);
 102 }
 103
 104 static inline uint16_t exca_read_word(int slot, uint8_t index)
 105 {
 106         uint16_t data;
 107
 108         if (slot == CARD_SLOTB)
 109                 index += CARD_SLOTB_OFFSET;
 110
 111         outb(index++, CARD_CONTROLLER_INDEX);
 112         data = inb(CARD_CONTROLLER_DATA);
 113
 114         outb(index, CARD_CONTROLLER_INDEX);
 115         data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
 116
 117         return data;
 118 }
 119
 120 static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
 121 {
 122         if (slot == CARD_SLOTB)
 123                 index += CARD_SLOTB_OFFSET;
 124
 125         outb(index, CARD_CONTROLLER_INDEX);
 126         outb(data, CARD_CONTROLLER_DATA);
 127
 128         return data;
 129 }
 130
 131 static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
 132 {
 133         if (slot == CARD_SLOTB)
 134                 index += CARD_SLOTB_OFFSET;
 135
 136         outb(index++, CARD_CONTROLLER_INDEX);
 137         outb(data, CARD_CONTROLLER_DATA);
 138
 139         outb(index, CARD_CONTROLLER_INDEX);
 140         outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
 141
 142         return data;
 143 }
 144
 145 static inline int search_nonuse_irq(void)
 146 {
 147         int i;
 148
 149         for (i = 0; i < 16; i++) {
 150                 if (vrc4171_irq_mask & (1 << i)) {
 151                         vrc4171_irq_mask &= ~(1 << i);
 152                         return i;
 153                 }
 154         }
 155
 156         return -1;
 157 }
 158
 159 static int pccard_init(struct pcmcia_socket *sock)
 160 {
 161         vrc4171_socket_t *socket;
 162         unsigned int slot;
 163
 164         sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
 165         sock->irq_mask = 0;
 166         sock->map_size = 0x1000;
 167         sock->pci_irq = vrc4171_irq;
 168
 169         slot = sock->sock;
 170         socket = &vrc4171_sockets[slot];
 171         socket->csc_irq = search_nonuse_irq();
 172         socket->io_irq = search_nonuse_irq();
 173
 174         return 0;
 175 }
 176
 177 static int pccard_suspend(struct pcmcia_socket *sock)
 178 {
 179         return -EINVAL;
 180 }
 181
 182 static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
 183 {
 184         unsigned int slot;
 185         uint8_t status, sense;
 186         u_int val = 0;
 187
 188         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
 189                 return -EINVAL;
 190
 191         slot = sock->sock;
 192
 193         status = exca_read_byte(slot, I365_STATUS);
 194         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 195                 if (status & I365_CS_STSCHG)
 196                         val |= SS_STSCHG;
 197         } else {
 198                 if (!(status & I365_CS_BVD1))
 199                         val |= SS_BATDEAD;
 200                 else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 201                         val |= SS_BATWARN;
 202         }
 203         if ((status & I365_CS_DETECT) == I365_CS_DETECT)
 204                 val |= SS_DETECT;
 205         if (status & I365_CS_WRPROT)
 206                 val |= SS_WRPROT;
 207         if (status & I365_CS_READY)
 208                 val |= SS_READY;
 209         if (status & I365_CS_POWERON)
 210                 val |= SS_POWERON;
 211
 212         sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
 213         switch (sense) {
 214         case VCC_3VORXV_CAPABLE:
 215                 val |= SS_3VCARD | SS_XVCARD;
 216                 break;
 217         case VCC_XV_ONLY:
 218                 val |= SS_XVCARD;
 219                 break;
 220         case VCC_3V_CAPABLE:
 221                 val |= SS_3VCARD;
 222                 break;
 223         default:
 224                 /* 5V only */
 225                 break;
 226         }
 227
 228         *value = val;
 229
 230         return 0;
 231 }
 232
 233 static inline u_char get_Vcc_value(uint8_t voltage)
 234 {
 235         switch (voltage) {
 236         case VCC_STATUS_3V:
 237                 return 33;
 238         case VCC_STATUS_5V:
 239                 return 50;
 240         default:
 241                 break;
 242         }
 243
 244         return 0;
 245 }
 246
 247 static inline u_char get_Vpp_value(uint8_t power, u_char Vcc)
 248 {
 249         if ((power & 0x03) == 0x01 || (power & 0x03) == 0x02)
 250                 return Vcc;
 251
 252         return 0;
 253 }
 254
 255 static int pccard_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
 256 {
 257         unsigned int slot;
 258         uint8_t power, voltage, control, cscint;
 259
 260         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || state == NULL)
 261                 return -EINVAL;
 262
 263         slot = sock->sock;
 264
 265         power = exca_read_byte(slot, I365_POWER);
 266         voltage = exca_read_byte(slot, CARD_VOLTAGE_SELECT);
 267
 268         state->Vcc = get_Vcc_value(voltage);
 269         state->Vpp = get_Vpp_value(power, state->Vcc);
 270
 271         state->flags = 0;
 272         if (power & POWER_ENABLE)
 273                 state->flags |= SS_PWR_AUTO;
 274         if (power & I365_PWR_OUT)
 275                 state->flags |= SS_OUTPUT_ENA;
 276
 277         control = exca_read_byte(slot, I365_INTCTL);
 278         if (control & I365_PC_IOCARD)
 279                 state->flags |= SS_IOCARD;
 280         if (!(control & I365_PC_RESET))
 281                 state->flags |= SS_RESET;
 282
 283         cscint = exca_read_byte(slot, I365_CSCINT);
 284         state->csc_mask = 0;
 285         if (state->flags & SS_IOCARD) {
 286                 if (cscint & I365_CSC_STSCHG)
 287                         state->flags |= SS_STSCHG;
 288         } else {
 289                 if (cscint & I365_CSC_BVD1)
 290                         state->csc_mask |= SS_BATDEAD;
 291                 if (cscint & I365_CSC_BVD2)
 292                         state->csc_mask |= SS_BATWARN;
 293         }
 294         if (cscint & I365_CSC_READY)
 295                 state->csc_mask |= SS_READY;
 296         if (cscint & I365_CSC_DETECT)
 297                 state->csc_mask |= SS_DETECT;
 298
 299         return 0;
 300 }
 301
 302 static inline uint8_t set_Vcc_value(u_char Vcc)
 303 {
 304         switch (Vcc) {
 305         case 33:
 306                 return VCC_3V;
 307         case 50:
 308                 return VCC_5V;
 309         }
 310
 311         /* Small voltage is chosen for safety. */
 312         return VCC_3V;
 313 }
 314
 315 static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
 316 {
 317         vrc4171_socket_t *socket;
 318         unsigned int slot;
 319         uint8_t voltage, power, control, cscint;
 320
 321         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 322             (state->Vpp != state->Vcc && state->Vpp != 0) ||
 323             (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
 324                 return -EINVAL;
 325
 326         slot = sock->sock;
 327         socket = &vrc4171_sockets[slot];
 328
 329         spin_lock_irq(&sock->lock);
 330
 331         voltage = set_Vcc_value(state->Vcc);
 332         exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
 333
 334         power = POWER_ENABLE;
 335         if (state->Vpp == state->Vcc)
 336                 power |= VPP_GET_VCC;
 337         if (state->flags & SS_OUTPUT_ENA)
 338                 power |= I365_PWR_OUT;
 339         exca_write_byte(slot, I365_POWER, power);
 340
 341         control = 0;
 342         if (state->io_irq != 0)
 343                 control |= socket->io_irq;
 344         if (state->flags & SS_IOCARD)
 345                 control |= I365_PC_IOCARD;
 346         if (state->flags & SS_RESET)
 347                 control &= ~I365_PC_RESET;
 348         else
 349                 control |= I365_PC_RESET;
 350         exca_write_byte(slot, I365_INTCTL, control);
 351
 352         cscint = 0;
 353         exca_write_byte(slot, I365_CSCINT, cscint);
 354         exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
 355         if (state->csc_mask != 0)
 356                 cscint |= socket->csc_irq << 8;
 357         if (state->flags & SS_IOCARD) {
 358                 if (state->csc_mask & SS_STSCHG)
 359                         cscint |= I365_CSC_STSCHG;
 360         } else {
 361                 if (state->csc_mask & SS_BATDEAD)
 362                         cscint |= I365_CSC_BVD1;
 363                 if (state->csc_mask & SS_BATWARN)
 364                         cscint |= I365_CSC_BVD2;
 365         }
 366         if (state->csc_mask & SS_READY)
 367                 cscint |= I365_CSC_READY;
 368         if (state->csc_mask & SS_DETECT)
 369                 cscint |= I365_CSC_DETECT;
 370         exca_write_byte(slot, I365_CSCINT, cscint);
 371
 372         spin_unlock_irq(&sock->lock);
 373
 374         return 0;
 375 }
 376
 377 static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
 378 {
 379         unsigned int slot;
 380         uint8_t ioctl, addrwin;
 381         u_char map;
 382
 383         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 384             io == NULL || io->map >= IO_MAX_MAPS ||
 385             io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
 386                 return -EINVAL;
 387
 388         slot = sock->sock;
 389         map = io->map;
 390
 391         addrwin = exca_read_byte(slot, I365_ADDRWIN);
 392         if (addrwin & I365_ENA_IO(map)) {
 393                 addrwin &= ~I365_ENA_IO(map);
 394                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 395         }
 396
 397         exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
 398         exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
 399
 400         ioctl = 0;
 401         if (io->speed > 0)
 402                 ioctl |= I365_IOCTL_WAIT(map);
 403         if (io->flags & MAP_16BIT)
 404                 ioctl |= I365_IOCTL_16BIT(map);
 405         if (io->flags & MAP_AUTOSZ)
 406                 ioctl |= I365_IOCTL_IOCS16(map);
 407         if (io->flags & MAP_0WS)
 408                 ioctl |= I365_IOCTL_0WS(map);
 409         exca_write_byte(slot, I365_IOCTL, ioctl);
 410
 411         if (io->flags & MAP_ACTIVE) {
 412                 addrwin |= I365_ENA_IO(map);
 413                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 414         }
 415
 416         return 0;
 417 }
 418
 419 static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
 420 {
 421         unsigned int slot;
 422         uint16_t start, stop, offset;
 423         uint8_t addrwin;
 424         u_char map;
 425
 426         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 427             mem == NULL || mem->map >= MEM_MAX_MAPS ||
 428             mem->sys_start < CARD_MEM_START || mem->sys_start > CARD_MEM_END ||
 429             mem->sys_stop < CARD_MEM_START || mem->sys_stop > CARD_MEM_END ||
 430             mem->sys_start > mem->sys_stop ||
 431             mem->card_start > CARD_MAX_MEM_OFFSET ||
 432             mem->speed > CARD_MAX_MEM_SPEED)
 433                 return -EINVAL;
 434
 435         slot = sock->sock;
 436         map = mem->map;
 437
 438         addrwin = exca_read_byte(slot, I365_ADDRWIN);
 439         if (addrwin & I365_ENA_MEM(map)) {
 440                 addrwin &= ~I365_ENA_MEM(map);
 441                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 442         }
 443
 444         start = (mem->sys_start >> 12) & 0x3fff;
 445         if (mem->flags & MAP_16BIT)
 446                 start |= I365_MEM_16BIT;
 447         exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
 448
 449         stop = (mem->sys_stop >> 12) & 0x3fff;
 450         switch (mem->speed) {
 451         case 0:
 452                 break;
 453         case 1:
 454                 stop |= I365_MEM_WS0;
 455                 break;
 456         case 2:
 457                 stop |= I365_MEM_WS1;
 458                 break;
 459         default:
 460                 stop |= I365_MEM_WS0 | I365_MEM_WS1;
 461                 break;
 462         }
 463         exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
 464
 465         offset = (mem->card_start >> 12) & 0x3fff;
 466         if (mem->flags & MAP_ATTRIB)
 467                 offset |= I365_MEM_REG;
 468         if (mem->flags & MAP_WRPROT)
 469                 offset |= I365_MEM_WRPROT;
 470         exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
 471
 472         if (mem->flags & MAP_ACTIVE) {
 473                 addrwin |= I365_ENA_MEM(map);
 474                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
 475         }
 476
 477         return 0;
 478 }
 479
 480 static struct pccard_operations vrc4171_pccard_operations = {
 481         .init                   = pccard_init,
 482         .suspend                = pccard_suspend,
 483         .get_status             = pccard_get_status,
 484         .get_socket             = pccard_get_socket,
 485         .set_socket             = pccard_set_socket,
 486         .set_io_map             = pccard_set_io_map,
 487         .set_mem_map            = pccard_set_mem_map,
 488 };
 489
 490 static inline unsigned int get_events(int slot)
 491 {
 492         unsigned int events = 0;
 493         uint8_t status, csc;
 494
 495         status = exca_read_byte(slot, I365_STATUS);
 496         csc = exca_read_byte(slot, I365_CSC);
 497
 498         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 499                 if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
 500                         events |= SS_STSCHG;
 501         } else {
 502                 if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
 503                         if (!(status & I365_CS_BVD1))
 504                                 events |= SS_BATDEAD;
 505                         else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 506                                 events |= SS_BATWARN;
 507                 }
 508         }
 509         if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
 510                 events |= SS_READY;
 511         if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
 512                 events |= SS_DETECT;
 513
 514         return events;
 515 }
 516
 517 static irqreturn_t pccard_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 518 {
 519         vrc4171_socket_t *socket;
 520         unsigned int events;
 521         irqreturn_t retval = IRQ_NONE;
 522         uint16_t status;
 523
 524         status = vrc4171_get_irq_status();
 525         if (status & IRQ_A) {
 526                 socket = &vrc4171_sockets[CARD_SLOTA];
 527                 if (socket->noprobe == SLOT_PROBE) {
 528                         if (status & (1 << socket->csc_irq)) {
 529                                 events = get_events(CARD_SLOTA);
 530                                 if (events != 0) {
 531                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
 532                                         retval = IRQ_HANDLED;
 533                                 }
 534                         }
 535                 }
 536         }
 537
 538         if (status & IRQ_B) {
 539                 socket = &vrc4171_sockets[CARD_SLOTB];
 540                 if (socket->noprobe == SLOT_PROBE) {
 541                         if (status & (1 << socket->csc_irq)) {
 542                                 events = get_events(CARD_SLOTB);
 543                                 if (events != 0) {
 544                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
 545                                         retval = IRQ_HANDLED;
 546                                 }
 547                         }
 548                 }
 549         }
 550
 551         return retval;
 552 }
 553
 554 static inline void reserve_using_irq(int slot)
 555 {
 556         unsigned int irq;
 557
 558         irq = exca_read_byte(slot, I365_INTCTL);
 559         irq &= 0x0f;
 560         vrc4171_irq_mask &= ~(1 << irq);
 561
 562         irq = exca_read_byte(slot, I365_CSCINT);
 563         irq = (irq & 0xf0) >> 4;
 564         vrc4171_irq_mask &= ~(1 << irq);
 565 }
 566
 567 static int __devinit vrc4171_add_socket(int slot)
 568 {
 569         vrc4171_socket_t *socket;
 570         int retval;
 571
 572         if (slot >= CARD_MAX_SLOTS)
 573                 return -EINVAL;
 574
 575         socket = &vrc4171_sockets[slot];
 576         if (socket->noprobe != SLOT_PROBE) {
 577                 uint8_t addrwin;
 578
 579                 switch (socket->noprobe) {
 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
 596                 return 0;
 597         }
 598
 599         sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
 600
 601         socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
 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
 609         exca_write_byte(slot, GLOBAL_CONTROL, 0);
 610
 611         return 0;
 612 }
 613
 614 static void vrc4171_remove_socket(int slot)
 615 {
 616         vrc4171_socket_t *socket;
 617
 618         if (slot >= CARD_MAX_SLOTS)
 619                 return;
 620
 621         socket = &vrc4171_sockets[slot];
 622
 623         pcmcia_unregister_socket(&socket->pcmcia_socket);
 624 }
 625
 626 static int __devinit vrc4171_card_setup(char *options)
 627 {
 628         if (options == NULL || *options == '\0')
 629                 return 0;
 630
 631         if (strncmp(options, "irq:", 4) == 0) {
 632                 int irq;
 633                 options += 4;
 634                 irq = simple_strtoul(options, &options, 0);
 635                 if (irq >= 0 && irq < NR_IRQS)
 636                         vrc4171_irq = irq;
 637
 638                 if (*options != ',')
 639                         return 0;
 640                 options++;
 641         }
 642
 643         if (strncmp(options, "slota:", 6) == 0) {
 644                 options += 6;
 645                 if (*options != '\0') {
 646                         if (strncmp(options, "memnoprobe", 10) == 0) {
 647                                 vrc4171_sockets[CARD_SLOTA].noprobe = SLOT_NOPROBE_MEM;
 648                                 options += 10;
 649                         } else if (strncmp(options, "ionoprobe", 9) == 0) {
 650                                 vrc4171_sockets[CARD_SLOTA].noprobe = SLOT_NOPROBE_IO;
 651                                 options += 9;
 652                         } else if ( strncmp(options, "noprobe", 7) == 0) {
 653                                 vrc4171_sockets[CARD_SLOTA].noprobe = SLOT_NOPROBE_ALL;
 654                                 options += 7;
 655                         }
 656
 657                         if (*options != ',')
 658                                 return 0;
 659                         options++;
 660                 } else
 661                         return 0;
 662
 663         }
 664
 665         if (strncmp(options, "slotb:", 6) == 0) {
 666                 options += 6;
 667                 if (*options != '\0') {
 668                         if (strncmp(options, "pccard", 6) == 0) {
 669                                 vrc4171_slotb = SLOTB_IS_PCCARD;
 670                                 options += 6;
 671                         } else if (strncmp(options, "cf", 2) == 0) {
 672                                 vrc4171_slotb = SLOTB_IS_CF;
 673                                 options += 2;
 674                         } else if (strncmp(options, "flashrom", 8) == 0) {
 675                                 vrc4171_slotb = SLOTB_IS_FLASHROM;
 676                                 options += 8;
 677                         } else if (strncmp(options, "none", 4) == 0) {
 678                                 vrc4171_slotb = SLOTB_IS_NONE;
 679                                 options += 4;
 680                         }
 681
 682                         if (*options != ',')
 683                                 return 0;
 684                         options++;
 685
 686                         if (strncmp(options, "memnoprobe", 10) == 0)
 687                                 vrc4171_sockets[CARD_SLOTB].noprobe = SLOT_NOPROBE_MEM;
 688                         if (strncmp(options, "ionoprobe", 9) == 0)
 689                                 vrc4171_sockets[CARD_SLOTB].noprobe = SLOT_NOPROBE_IO;
 690                         if (strncmp(options, "noprobe", 7) == 0)
 691                                 vrc4171_sockets[CARD_SLOTB].noprobe = SLOT_NOPROBE_ALL;
 692                 }
 693         }
 694
 695         return 0;
 696 }
 697
 698 __setup("vrc4171_card=", vrc4171_card_setup);
 699
 700 static int __devinit vrc4171_card_init(void)
 701 {
 702         int retval, slot;
 703
 704         vrc4171_set_multifunction_pin(vrc4171_slotb);
 705
 706         if (request_region(CARD_CONTROLLER_INDEX, CARD_CONTROLLER_SIZE,
 707                                "NEC VRC4171 Card Controller") == NULL)
 708                 return -EBUSY;
 709
 710         for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 711                 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 712                         break;
 713
 714                 retval = vrc4171_add_socket(slot);
 715                 if (retval != 0)
 716                         return retval;
 717         }
 718
 719         retval = request_irq(vrc4171_irq, pccard_interrupt, SA_SHIRQ,
 720                              "NEC VRC4171 Card Controller", vrc4171_sockets);
 721         if (retval < 0) {
 722                 for (slot = 0; slot < CARD_MAX_SLOTS; slot++)
 723                         vrc4171_remove_socket(slot);
 724
 725                 return retval;
 726         }
 727
 728         printk(KERN_INFO "NEC VRC4171 Card Controller, connected to IRQ %d\n", vrc4171_irq);
 729
 730         return 0;
 731 }
 732
 733 static void __devexit vrc4171_card_exit(void)
 734 {
 735         int slot;
 736
 737         for (slot = 0; slot < CARD_MAX_SLOTS; slot++)
 738                 vrc4171_remove_socket(slot);
 739
 740         release_region(CARD_CONTROLLER_INDEX, CARD_CONTROLLER_SIZE);
 741 }
 742
 743 module_init(vrc4171_card_init);
 744 module_exit(vrc4171_card_exit);