linux/drivers/pcmcia/vrc4171_card.c
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   1/*
   2 * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
   3 *
   4 * Copyright (C) 2003-2005  Yoichi Yuasa <yuasa@linux-mips.org>
   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
  34MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
  35MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
  36MODULE_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
  87typedef 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
  95typedef enum {
  96        SLOTB_IS_NONE,
  97        SLOTB_IS_PCCARD,
  98        SLOTB_IS_CF,
  99        SLOTB_IS_FLASHROM,
 100} vrc4171_slotb_t;
 101
 102typedef 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        spinlock_t lock;
 109} vrc4171_socket_t;
 110
 111static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS];
 112static vrc4171_slotb_t vrc4171_slotb = SLOTB_IS_NONE;
 113static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
 114static unsigned int vrc4171_irq;
 115static uint16_t vrc4171_irq_mask = 0xdeb8;
 116
 117static struct resource vrc4171_card_resource[3] = {
 118        {       .name           = vrc4171_card_name,
 119                .start          = CARD_CONTROLLER_START,
 120                .end            = CARD_CONTROLLER_END,
 121                .flags          = IORESOURCE_IO,        },
 122        {       .name           = vrc4171_card_name,
 123                .start          = INTERRUPT_STATUS,
 124                .end            = INTERRUPT_STATUS,
 125                .flags          = IORESOURCE_IO,        },
 126        {       .name           = vrc4171_card_name,
 127                .start          = CONFIGURATION1,
 128                .end            = CONFIGURATION1,
 129                .flags          = IORESOURCE_IO,        },
 130};
 131
 132static struct platform_device vrc4171_card_device = {
 133        .name           = vrc4171_card_name,
 134        .id             = 0,
 135        .num_resources  = 3,
 136        .resource       = vrc4171_card_resource,
 137};
 138
 139static inline uint16_t vrc4171_get_irq_status(void)
 140{
 141        return inw(INTERRUPT_STATUS);
 142}
 143
 144static inline void vrc4171_set_multifunction_pin(vrc4171_slotb_t config)
 145{
 146        uint16_t config1;
 147
 148        config1 = inw(CONFIGURATION1);
 149        config1 &= ~SLOTB_CONFIG;
 150
 151        switch (config) {
 152        case SLOTB_IS_NONE:
 153                config1 |= SLOTB_NONE;
 154                break;
 155        case SLOTB_IS_PCCARD:
 156                config1 |= SLOTB_PCCARD;
 157                break;
 158        case SLOTB_IS_CF:
 159                config1 |= SLOTB_CF;
 160                break;
 161        case SLOTB_IS_FLASHROM:
 162                config1 |= SLOTB_FLASHROM;
 163                break;
 164        default:
 165                break;
 166        }
 167
 168        outw(config1, CONFIGURATION1);
 169}
 170
 171static inline uint8_t exca_read_byte(int slot, uint8_t index)
 172{
 173        if (slot == CARD_SLOTB)
 174                index += CARD_SLOTB_OFFSET;
 175
 176        outb(index, CARD_CONTROLLER_INDEX);
 177        return inb(CARD_CONTROLLER_DATA);
 178}
 179
 180static inline uint16_t exca_read_word(int slot, uint8_t index)
 181{
 182        uint16_t data;
 183
 184        if (slot == CARD_SLOTB)
 185                index += CARD_SLOTB_OFFSET;
 186
 187        outb(index++, CARD_CONTROLLER_INDEX);
 188        data = inb(CARD_CONTROLLER_DATA);
 189
 190        outb(index, CARD_CONTROLLER_INDEX);
 191        data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
 192
 193        return data;
 194}
 195
 196static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
 197{
 198        if (slot == CARD_SLOTB)
 199                index += CARD_SLOTB_OFFSET;
 200
 201        outb(index, CARD_CONTROLLER_INDEX);
 202        outb(data, CARD_CONTROLLER_DATA);
 203
 204        return data;
 205}
 206
 207static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
 208{
 209        if (slot == CARD_SLOTB)
 210                index += CARD_SLOTB_OFFSET;
 211
 212        outb(index++, CARD_CONTROLLER_INDEX);
 213        outb(data, CARD_CONTROLLER_DATA);
 214
 215        outb(index, CARD_CONTROLLER_INDEX);
 216        outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
 217
 218        return data;
 219}
 220
 221static inline int search_nonuse_irq(void)
 222{
 223        int i;
 224
 225        for (i = 0; i < 16; i++) {
 226                if (vrc4171_irq_mask & (1 << i)) {
 227                        vrc4171_irq_mask &= ~(1 << i);
 228                        return i;
 229                }
 230        }
 231
 232        return -1;
 233}
 234
 235static int pccard_init(struct pcmcia_socket *sock)
 236{
 237        vrc4171_socket_t *socket;
 238        unsigned int slot;
 239
 240        sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
 241        sock->irq_mask = 0;
 242        sock->map_size = 0x1000;
 243        sock->pci_irq = vrc4171_irq;
 244
 245        slot = sock->sock;
 246        socket = &vrc4171_sockets[slot];
 247        socket->csc_irq = search_nonuse_irq();
 248        socket->io_irq = search_nonuse_irq();
 249        spin_lock_init(&socket->lock);
 250
 251        return 0;
 252}
 253
 254static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
 255{
 256        unsigned int slot;
 257        uint8_t status, sense;
 258        u_int val = 0;
 259
 260        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
 261                return -EINVAL;
 262
 263        slot = sock->sock;
 264
 265        status = exca_read_byte(slot, I365_STATUS);
 266        if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 267                if (status & I365_CS_STSCHG)
 268                        val |= SS_STSCHG;
 269        } else {
 270                if (!(status & I365_CS_BVD1))
 271                        val |= SS_BATDEAD;
 272                else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 273                        val |= SS_BATWARN;
 274        }
 275        if ((status & I365_CS_DETECT) == I365_CS_DETECT)
 276                val |= SS_DETECT;
 277        if (status & I365_CS_WRPROT)
 278                val |= SS_WRPROT;
 279        if (status & I365_CS_READY)
 280                val |= SS_READY;
 281        if (status & I365_CS_POWERON)
 282                val |= SS_POWERON;
 283
 284        sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
 285        switch (sense) {
 286        case VCC_3VORXV_CAPABLE:
 287                val |= SS_3VCARD | SS_XVCARD;
 288                break;
 289        case VCC_XV_ONLY:
 290                val |= SS_XVCARD;
 291                break;
 292        case VCC_3V_CAPABLE:
 293                val |= SS_3VCARD;
 294                break;
 295        default:
 296                /* 5V only */
 297                break;
 298        }
 299
 300        *value = val;
 301
 302        return 0;
 303}
 304
 305static inline uint8_t set_Vcc_value(u_char Vcc)
 306{
 307        switch (Vcc) {
 308        case 33:
 309                return VCC_3V;
 310        case 50:
 311                return VCC_5V;
 312        }
 313
 314        /* Small voltage is chosen for safety. */
 315        return VCC_3V;
 316}
 317
 318static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
 319{
 320        vrc4171_socket_t *socket;
 321        unsigned int slot;
 322        uint8_t voltage, power, control, cscint;
 323
 324        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 325            (state->Vpp != state->Vcc && state->Vpp != 0) ||
 326            (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
 327                return -EINVAL;
 328
 329        slot = sock->sock;
 330        socket = &vrc4171_sockets[slot];
 331
 332        spin_lock_irq(&socket->lock);
 333
 334        voltage = set_Vcc_value(state->Vcc);
 335        exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
 336
 337        power = POWER_ENABLE;
 338        if (state->Vpp == state->Vcc)
 339                power |= VPP_GET_VCC;
 340        if (state->flags & SS_OUTPUT_ENA)
 341                power |= I365_PWR_OUT;
 342        exca_write_byte(slot, I365_POWER, power);
 343
 344        control = 0;
 345        if (state->io_irq != 0)
 346                control |= socket->io_irq;
 347        if (state->flags & SS_IOCARD)
 348                control |= I365_PC_IOCARD;
 349        if (state->flags & SS_RESET)
 350                control &= ~I365_PC_RESET;
 351        else
 352                control |= I365_PC_RESET;
 353        exca_write_byte(slot, I365_INTCTL, control);
 354
 355        cscint = 0;
 356        exca_write_byte(slot, I365_CSCINT, cscint);
 357        exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
 358        if (state->csc_mask != 0)
 359                cscint |= socket->csc_irq << 8;
 360        if (state->flags & SS_IOCARD) {
 361                if (state->csc_mask & SS_STSCHG)
 362                        cscint |= I365_CSC_STSCHG;
 363        } else {
 364                if (state->csc_mask & SS_BATDEAD)
 365                        cscint |= I365_CSC_BVD1;
 366                if (state->csc_mask & SS_BATWARN)
 367                        cscint |= I365_CSC_BVD2;
 368        }
 369        if (state->csc_mask & SS_READY)
 370                cscint |= I365_CSC_READY;
 371        if (state->csc_mask & SS_DETECT)
 372                cscint |= I365_CSC_DETECT;
 373        exca_write_byte(slot, I365_CSCINT, cscint);
 374
 375        spin_unlock_irq(&socket->lock);
 376
 377        return 0;
 378}
 379
 380static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
 381{
 382        unsigned int slot;
 383        uint8_t ioctl, addrwin;
 384        u_char map;
 385
 386        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 387            io == NULL || io->map >= IO_MAX_MAPS ||
 388            io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
 389                return -EINVAL;
 390
 391        slot = sock->sock;
 392        map = io->map;
 393
 394        addrwin = exca_read_byte(slot, I365_ADDRWIN);
 395        if (addrwin & I365_ENA_IO(map)) {
 396                addrwin &= ~I365_ENA_IO(map);
 397                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 398        }
 399
 400        exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
 401        exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
 402
 403        ioctl = 0;
 404        if (io->speed > 0)
 405                ioctl |= I365_IOCTL_WAIT(map);
 406        if (io->flags & MAP_16BIT)
 407                ioctl |= I365_IOCTL_16BIT(map);
 408        if (io->flags & MAP_AUTOSZ)
 409                ioctl |= I365_IOCTL_IOCS16(map);
 410        if (io->flags & MAP_0WS)
 411                ioctl |= I365_IOCTL_0WS(map);
 412        exca_write_byte(slot, I365_IOCTL, ioctl);
 413
 414        if (io->flags & MAP_ACTIVE) {
 415                addrwin |= I365_ENA_IO(map);
 416                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 417        }
 418
 419        return 0;
 420}
 421
 422static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
 423{
 424        unsigned int slot;
 425        uint16_t start, stop, offset;
 426        uint8_t addrwin;
 427        u_char map;
 428
 429        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 430            mem == NULL || mem->map >= MEM_MAX_MAPS ||
 431            mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
 432            mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
 433            mem->res->start > mem->res->end ||
 434            mem->card_start > CARD_MAX_MEM_OFFSET ||
 435            mem->speed > CARD_MAX_MEM_SPEED)
 436                return -EINVAL;
 437
 438        slot = sock->sock;
 439        map = mem->map;
 440
 441        addrwin = exca_read_byte(slot, I365_ADDRWIN);
 442        if (addrwin & I365_ENA_MEM(map)) {
 443                addrwin &= ~I365_ENA_MEM(map);
 444                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 445        }
 446
 447        start = (mem->res->start >> 12) & 0x3fff;
 448        if (mem->flags & MAP_16BIT)
 449                start |= I365_MEM_16BIT;
 450        exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
 451
 452        stop = (mem->res->end >> 12) & 0x3fff;
 453        switch (mem->speed) {
 454        case 0:
 455                break;
 456        case 1:
 457                stop |= I365_MEM_WS0;
 458                break;
 459        case 2:
 460                stop |= I365_MEM_WS1;
 461                break;
 462        default:
 463                stop |= I365_MEM_WS0 | I365_MEM_WS1;
 464                break;
 465        }
 466        exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
 467
 468        offset = (mem->card_start >> 12) & 0x3fff;
 469        if (mem->flags & MAP_ATTRIB)
 470                offset |= I365_MEM_REG;
 471        if (mem->flags & MAP_WRPROT)
 472                offset |= I365_MEM_WRPROT;
 473        exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
 474
 475        if (mem->flags & MAP_ACTIVE) {
 476                addrwin |= I365_ENA_MEM(map);
 477                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 478        }
 479
 480        return 0;
 481}
 482
 483static struct pccard_operations vrc4171_pccard_operations = {
 484        .init                   = pccard_init,
 485        .get_status             = pccard_get_status,
 486        .set_socket             = pccard_set_socket,
 487        .set_io_map             = pccard_set_io_map,
 488        .set_mem_map            = pccard_set_mem_map,
 489};
 490
 491static inline unsigned int get_events(int slot)
 492{
 493        unsigned int events = 0;
 494        uint8_t status, csc;
 495
 496        status = exca_read_byte(slot, I365_STATUS);
 497        csc = exca_read_byte(slot, I365_CSC);
 498
 499        if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 500                if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
 501                        events |= SS_STSCHG;
 502        } else {
 503                if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
 504                        if (!(status & I365_CS_BVD1))
 505                                events |= SS_BATDEAD;
 506                        else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 507                                events |= SS_BATWARN;
 508                }
 509        }
 510        if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
 511                events |= SS_READY;
 512        if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
 513                events |= SS_DETECT;
 514
 515        return events;
 516}
 517
 518static irqreturn_t pccard_interrupt(int irq, void *dev_id)
 519{
 520        vrc4171_socket_t *socket;
 521        unsigned int events;
 522        irqreturn_t retval = IRQ_NONE;
 523        uint16_t status;
 524
 525        status = vrc4171_get_irq_status();
 526        if (status & IRQ_A) {
 527                socket = &vrc4171_sockets[CARD_SLOTA];
 528                if (socket->slot == SLOT_INITIALIZED) {
 529                        if (status & (1 << socket->csc_irq)) {
 530                                events = get_events(CARD_SLOTA);
 531                                if (events != 0) {
 532                                        pcmcia_parse_events(&socket->pcmcia_socket, events);
 533                                        retval = IRQ_HANDLED;
 534                                }
 535                        }
 536                }
 537        }
 538
 539        if (status & IRQ_B) {
 540                socket = &vrc4171_sockets[CARD_SLOTB];
 541                if (socket->slot == SLOT_INITIALIZED) {
 542                        if (status & (1 << socket->csc_irq)) {
 543                                events = get_events(CARD_SLOTB);
 544                                if (events != 0) {
 545                                        pcmcia_parse_events(&socket->pcmcia_socket, events);
 546                                        retval = IRQ_HANDLED;
 547                                }
 548                        }
 549                }
 550        }
 551
 552        return retval;
 553}
 554
 555static inline void reserve_using_irq(int slot)
 556{
 557        unsigned int irq;
 558
 559        irq = exca_read_byte(slot, I365_INTCTL);
 560        irq &= 0x0f;
 561        vrc4171_irq_mask &= ~(1 << irq);
 562
 563        irq = exca_read_byte(slot, I365_CSCINT);
 564        irq = (irq & 0xf0) >> 4;
 565        vrc4171_irq_mask &= ~(1 << irq);
 566}
 567
 568static int vrc4171_add_sockets(void)
 569{
 570        vrc4171_socket_t *socket;
 571        int slot, retval;
 572
 573        for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 574                if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 575                        continue;
 576
 577                socket = &vrc4171_sockets[slot];
 578                if (socket->slot != SLOT_PROBE) {
 579                        uint8_t addrwin;
 580
 581                        switch (socket->slot) {
 582                        case SLOT_NOPROBE_MEM:
 583                                addrwin = exca_read_byte(slot, I365_ADDRWIN);
 584                                addrwin &= 0x1f;
 585                                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 586                                break;
 587                        case SLOT_NOPROBE_IO:
 588                                addrwin = exca_read_byte(slot, I365_ADDRWIN);
 589                                addrwin &= 0xc0;
 590                                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 591                                break;
 592                        default:
 593                                break;
 594                        }
 595
 596                        reserve_using_irq(slot);
 597                        continue;
 598                }
 599
 600                sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
 601                socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
 602                socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
 603                socket->pcmcia_socket.owner = THIS_MODULE;
 604
 605                retval = pcmcia_register_socket(&socket->pcmcia_socket);
 606                if (retval < 0)
 607                        return retval;
 608
 609                exca_write_byte(slot, I365_ADDRWIN, 0);
 610                exca_write_byte(slot, GLOBAL_CONTROL, 0);
 611
 612                socket->slot = SLOT_INITIALIZED;
 613        }
 614
 615        return 0;
 616}
 617
 618static void vrc4171_remove_sockets(void)
 619{
 620        vrc4171_socket_t *socket;
 621        int slot;
 622
 623        for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 624                if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 625                        continue;
 626
 627                socket = &vrc4171_sockets[slot];
 628                if (socket->slot == SLOT_INITIALIZED)
 629                        pcmcia_unregister_socket(&socket->pcmcia_socket);
 630
 631                socket->slot = SLOT_PROBE;
 632        }
 633}
 634
 635static int vrc4171_card_setup(char *options)
 636{
 637        if (options == NULL || *options == '\0')
 638                return 1;
 639
 640        if (strncmp(options, "irq:", 4) == 0) {
 641                int irq;
 642                options += 4;
 643                irq = simple_strtoul(options, &options, 0);
 644                if (irq >= 0 && irq < nr_irqs)
 645                        vrc4171_irq = irq;
 646
 647                if (*options != ',')
 648                        return 1;
 649                options++;
 650        }
 651
 652        if (strncmp(options, "slota:", 6) == 0) {
 653                options += 6;
 654                if (*options != '\0') {
 655                        if (strncmp(options, "memnoprobe", 10) == 0) {
 656                                vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
 657                                options += 10;
 658                        } else if (strncmp(options, "ionoprobe", 9) == 0) {
 659                                vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
 660                                options += 9;
 661                        } else if ( strncmp(options, "noprobe", 7) == 0) {
 662                                vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
 663                                options += 7;
 664                        }
 665
 666                        if (*options != ',')
 667                                return 1;
 668                        options++;
 669                } else
 670                        return 1;
 671
 672        }
 673
 674        if (strncmp(options, "slotb:", 6) == 0) {
 675                options += 6;
 676                if (*options != '\0') {
 677                        if (strncmp(options, "pccard", 6) == 0) {
 678                                vrc4171_slotb = SLOTB_IS_PCCARD;
 679                                options += 6;
 680                        } else if (strncmp(options, "cf", 2) == 0) {
 681                                vrc4171_slotb = SLOTB_IS_CF;
 682                                options += 2;
 683                        } else if (strncmp(options, "flashrom", 8) == 0) {
 684                                vrc4171_slotb = SLOTB_IS_FLASHROM;
 685                                options += 8;
 686                        } else if (strncmp(options, "none", 4) == 0) {
 687                                vrc4171_slotb = SLOTB_IS_NONE;
 688                                options += 4;
 689                        }
 690
 691                        if (*options != ',')
 692                                return 1;
 693                        options++;
 694
 695                        if (strncmp(options, "memnoprobe", 10) == 0)
 696                                vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
 697                        if (strncmp(options, "ionoprobe", 9) == 0)
 698                                vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
 699                        if (strncmp(options, "noprobe", 7) == 0)
 700                                vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
 701                }
 702        }
 703
 704        return 1;
 705}
 706
 707__setup("vrc4171_card=", vrc4171_card_setup);
 708
 709static struct platform_driver vrc4171_card_driver = {
 710        .driver = {
 711                .name           = vrc4171_card_name,
 712                .owner          = THIS_MODULE,
 713        },
 714};
 715
 716static int vrc4171_card_init(void)
 717{
 718        int retval;
 719
 720        retval = platform_driver_register(&vrc4171_card_driver);
 721        if (retval < 0)
 722                return retval;
 723
 724        retval = platform_device_register(&vrc4171_card_device);
 725        if (retval < 0) {
 726                platform_driver_unregister(&vrc4171_card_driver);
 727                return retval;
 728        }
 729
 730        vrc4171_set_multifunction_pin(vrc4171_slotb);
 731
 732        retval = vrc4171_add_sockets();
 733        if (retval == 0)
 734                retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
 735                                     vrc4171_card_name, vrc4171_sockets);
 736
 737        if (retval < 0) {
 738                vrc4171_remove_sockets();
 739                platform_device_unregister(&vrc4171_card_device);
 740                platform_driver_unregister(&vrc4171_card_driver);
 741                return retval;
 742        }
 743
 744        printk(KERN_INFO "%s, connected to IRQ %d\n",
 745                vrc4171_card_driver.driver.name, vrc4171_irq);
 746
 747        return 0;
 748}
 749
 750static void vrc4171_card_exit(void)
 751{
 752        free_irq(vrc4171_irq, vrc4171_sockets);
 753        vrc4171_remove_sockets();
 754        platform_device_unregister(&vrc4171_card_device);
 755        platform_driver_unregister(&vrc4171_card_driver);
 756}
 757
 758module_init(vrc4171_card_init);
 759module_exit(vrc4171_card_exit);
 760
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