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 <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
  34MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
  35MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
  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} vrc4171_socket_t;
 109
 110static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS];
 111static vrc4171_slotb_t vrc4171_slotb = SLOTB_IS_NONE;
 112static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
 113static unsigned int vrc4171_irq;
 114static uint16_t vrc4171_irq_mask = 0xdeb8;
 115
 116static 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
 131static 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
 138static inline uint16_t vrc4171_get_irq_status(void)
 139{
 140        return inw(INTERRUPT_STATUS);
 141}
 142
 143static 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
 170static 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
 179static 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
 195static 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
 206static 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
 220static 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
 234static 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
 252static 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
 303static 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
 316static 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
 378static 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
 420static 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
 481static 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
 489static 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
 516static 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
 553static 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
 566static 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
 616static 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
 633static 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
 707static 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
 714static 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
 747static 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
 755module_init(vrc4171_card_init);
 756module_exit(vrc4171_card_exit);
 757