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
 250        return 0;
 251}
 252
 253static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
 254{
 255        unsigned int slot;
 256        uint8_t status, sense;
 257        u_int val = 0;
 258
 259        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
 260                return -EINVAL;
 261
 262        slot = sock->sock;
 263
 264        status = exca_read_byte(slot, I365_STATUS);
 265        if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
 266                if (status & I365_CS_STSCHG)
 267                        val |= SS_STSCHG;
 268        } else {
 269                if (!(status & I365_CS_BVD1))
 270                        val |= SS_BATDEAD;
 271                else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
 272                        val |= SS_BATWARN;
 273        }
 274        if ((status & I365_CS_DETECT) == I365_CS_DETECT)
 275                val |= SS_DETECT;
 276        if (status & I365_CS_WRPROT)
 277                val |= SS_WRPROT;
 278        if (status & I365_CS_READY)
 279                val |= SS_READY;
 280        if (status & I365_CS_POWERON)
 281                val |= SS_POWERON;
 282
 283        sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
 284        switch (sense) {
 285        case VCC_3VORXV_CAPABLE:
 286                val |= SS_3VCARD | SS_XVCARD;
 287                break;
 288        case VCC_XV_ONLY:
 289                val |= SS_XVCARD;
 290                break;
 291        case VCC_3V_CAPABLE:
 292                val |= SS_3VCARD;
 293                break;
 294        default:
 295                /* 5V only */
 296                break;
 297        }
 298
 299        *value = val;
 300
 301        return 0;
 302}
 303
 304static inline uint8_t set_Vcc_value(u_char Vcc)
 305{
 306        switch (Vcc) {
 307        case 33:
 308                return VCC_3V;
 309        case 50:
 310                return VCC_5V;
 311        }
 312
 313        /* Small voltage is chosen for safety. */
 314        return VCC_3V;
 315}
 316
 317static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
 318{
 319        vrc4171_socket_t *socket;
 320        unsigned int slot;
 321        uint8_t voltage, power, control, cscint;
 322
 323        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 324            (state->Vpp != state->Vcc && state->Vpp != 0) ||
 325            (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
 326                return -EINVAL;
 327
 328        slot = sock->sock;
 329        socket = &vrc4171_sockets[slot];
 330
 331        spin_lock_irq(&socket->lock);
 332
 333        voltage = set_Vcc_value(state->Vcc);
 334        exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
 335
 336        power = POWER_ENABLE;
 337        if (state->Vpp == state->Vcc)
 338                power |= VPP_GET_VCC;
 339        if (state->flags & SS_OUTPUT_ENA)
 340                power |= I365_PWR_OUT;
 341        exca_write_byte(slot, I365_POWER, power);
 342
 343        control = 0;
 344        if (state->io_irq != 0)
 345                control |= socket->io_irq;
 346        if (state->flags & SS_IOCARD)
 347                control |= I365_PC_IOCARD;
 348        if (state->flags & SS_RESET)
 349                control &= ~I365_PC_RESET;
 350        else
 351                control |= I365_PC_RESET;
 352        exca_write_byte(slot, I365_INTCTL, control);
 353
 354        cscint = 0;
 355        exca_write_byte(slot, I365_CSCINT, cscint);
 356        exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
 357        if (state->csc_mask != 0)
 358                cscint |= socket->csc_irq << 8;
 359        if (state->flags & SS_IOCARD) {
 360                if (state->csc_mask & SS_STSCHG)
 361                        cscint |= I365_CSC_STSCHG;
 362        } else {
 363                if (state->csc_mask & SS_BATDEAD)
 364                        cscint |= I365_CSC_BVD1;
 365                if (state->csc_mask & SS_BATWARN)
 366                        cscint |= I365_CSC_BVD2;
 367        }
 368        if (state->csc_mask & SS_READY)
 369                cscint |= I365_CSC_READY;
 370        if (state->csc_mask & SS_DETECT)
 371                cscint |= I365_CSC_DETECT;
 372        exca_write_byte(slot, I365_CSCINT, cscint);
 373
 374        spin_unlock_irq(&socket->lock);
 375
 376        return 0;
 377}
 378
 379static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
 380{
 381        unsigned int slot;
 382        uint8_t ioctl, addrwin;
 383        u_char map;
 384
 385        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 386            io == NULL || io->map >= IO_MAX_MAPS ||
 387            io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
 388                return -EINVAL;
 389
 390        slot = sock->sock;
 391        map = io->map;
 392
 393        addrwin = exca_read_byte(slot, I365_ADDRWIN);
 394        if (addrwin & I365_ENA_IO(map)) {
 395                addrwin &= ~I365_ENA_IO(map);
 396                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 397        }
 398
 399        exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
 400        exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
 401
 402        ioctl = 0;
 403        if (io->speed > 0)
 404                ioctl |= I365_IOCTL_WAIT(map);
 405        if (io->flags & MAP_16BIT)
 406                ioctl |= I365_IOCTL_16BIT(map);
 407        if (io->flags & MAP_AUTOSZ)
 408                ioctl |= I365_IOCTL_IOCS16(map);
 409        if (io->flags & MAP_0WS)
 410                ioctl |= I365_IOCTL_0WS(map);
 411        exca_write_byte(slot, I365_IOCTL, ioctl);
 412
 413        if (io->flags & MAP_ACTIVE) {
 414                addrwin |= I365_ENA_IO(map);
 415                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 416        }
 417
 418        return 0;
 419}
 420
 421static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
 422{
 423        unsigned int slot;
 424        uint16_t start, stop, offset;
 425        uint8_t addrwin;
 426        u_char map;
 427
 428        if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
 429            mem == NULL || mem->map >= MEM_MAX_MAPS ||
 430            mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
 431            mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
 432            mem->res->start > mem->res->end ||
 433            mem->card_start > CARD_MAX_MEM_OFFSET ||
 434            mem->speed > CARD_MAX_MEM_SPEED)
 435                return -EINVAL;
 436
 437        slot = sock->sock;
 438        map = mem->map;
 439
 440        addrwin = exca_read_byte(slot, I365_ADDRWIN);
 441        if (addrwin & I365_ENA_MEM(map)) {
 442                addrwin &= ~I365_ENA_MEM(map);
 443                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 444        }
 445
 446        start = (mem->res->start >> 12) & 0x3fff;
 447        if (mem->flags & MAP_16BIT)
 448                start |= I365_MEM_16BIT;
 449        exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
 450
 451        stop = (mem->res->end >> 12) & 0x3fff;
 452        switch (mem->speed) {
 453        case 0:
 454                break;
 455        case 1:
 456                stop |= I365_MEM_WS0;
 457                break;
 458        case 2:
 459                stop |= I365_MEM_WS1;
 460                break;
 461        default:
 462                stop |= I365_MEM_WS0 | I365_MEM_WS1;
 463                break;
 464        }
 465        exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
 466
 467        offset = (mem->card_start >> 12) & 0x3fff;
 468        if (mem->flags & MAP_ATTRIB)
 469                offset |= I365_MEM_REG;
 470        if (mem->flags & MAP_WRPROT)
 471                offset |= I365_MEM_WRPROT;
 472        exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
 473
 474        if (mem->flags & MAP_ACTIVE) {
 475                addrwin |= I365_ENA_MEM(map);
 476                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 477        }
 478
 479        return 0;
 480}
 481
 482static struct pccard_operations vrc4171_pccard_operations = {
 483        .init                   = pccard_init,
 484        .get_status             = pccard_get_status,
 485        .set_socket             = pccard_set_socket,
 486        .set_io_map             = pccard_set_io_map,
 487        .set_mem_map            = pccard_set_mem_map,
 488};
 489
 490static 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
 517static irqreturn_t pccard_interrupt(int irq, void *dev_id)
 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->slot == SLOT_INITIALIZED) {
 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->slot == SLOT_INITIALIZED) {
 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
 554static 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
 567static int __devinit vrc4171_add_sockets(void)
 568{
 569        vrc4171_socket_t *socket;
 570        int slot, retval;
 571
 572        for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 573                if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 574                        continue;
 575
 576                socket = &vrc4171_sockets[slot];
 577                if (socket->slot != SLOT_PROBE) {
 578                        uint8_t addrwin;
 579
 580                        switch (socket->slot) {
 581                        case SLOT_NOPROBE_MEM:
 582                                addrwin = exca_read_byte(slot, I365_ADDRWIN);
 583                                addrwin &= 0x1f;
 584                                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 585                                break;
 586                        case SLOT_NOPROBE_IO:
 587                                addrwin = exca_read_byte(slot, I365_ADDRWIN);
 588                                addrwin &= 0xc0;
 589                                exca_write_byte(slot, I365_ADDRWIN, addrwin);
 590                                break;
 591                        default:
 592                                break;
 593                        }
 594
 595                        reserve_using_irq(slot);
 596                        continue;
 597                }
 598
 599                sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
 600                socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
 601                socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
 602                socket->pcmcia_socket.owner = THIS_MODULE;
 603
 604                retval = pcmcia_register_socket(&socket->pcmcia_socket);
 605                if (retval < 0)
 606                        return retval;
 607
 608                exca_write_byte(slot, I365_ADDRWIN, 0);
 609                exca_write_byte(slot, GLOBAL_CONTROL, 0);
 610
 611                socket->slot = SLOT_INITIALIZED;
 612        }
 613
 614        return 0;
 615}
 616
 617static void vrc4171_remove_sockets(void)
 618{
 619        vrc4171_socket_t *socket;
 620        int slot;
 621
 622        for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
 623                if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
 624                        continue;
 625
 626                socket = &vrc4171_sockets[slot];
 627                if (socket->slot == SLOT_INITIALIZED)
 628                        pcmcia_unregister_socket(&socket->pcmcia_socket);
 629
 630                socket->slot = SLOT_PROBE;
 631        }
 632}
 633
 634static int __devinit vrc4171_card_setup(char *options)
 635{
 636        if (options == NULL || *options == '\0')
 637                return 1;
 638
 639        if (strncmp(options, "irq:", 4) == 0) {
 640                int irq;
 641                options += 4;
 642                irq = simple_strtoul(options, &options, 0);
 643                if (irq >= 0 && irq < nr_irqs)
 644                        vrc4171_irq = irq;
 645
 646                if (*options != ',')
 647                        return 1;
 648                options++;
 649        }
 650
 651        if (strncmp(options, "slota:", 6) == 0) {
 652                options += 6;
 653                if (*options != '\0') {
 654                        if (strncmp(options, "memnoprobe", 10) == 0) {
 655                                vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
 656                                options += 10;
 657                        } else if (strncmp(options, "ionoprobe", 9) == 0) {
 658                                vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
 659                                options += 9;
 660                        } else if ( strncmp(options, "noprobe", 7) == 0) {
 661                                vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
 662                                options += 7;
 663                        }
 664
 665                        if (*options != ',')
 666                                return 1;
 667                        options++;
 668                } else
 669                        return 1;
 670
 671        }
 672
 673        if (strncmp(options, "slotb:", 6) == 0) {
 674                options += 6;
 675                if (*options != '\0') {
 676                        if (strncmp(options, "pccard", 6) == 0) {
 677                                vrc4171_slotb = SLOTB_IS_PCCARD;
 678                                options += 6;
 679                        } else if (strncmp(options, "cf", 2) == 0) {
 680                                vrc4171_slotb = SLOTB_IS_CF;
 681                                options += 2;
 682                        } else if (strncmp(options, "flashrom", 8) == 0) {
 683                                vrc4171_slotb = SLOTB_IS_FLASHROM;
 684                                options += 8;
 685                        } else if (strncmp(options, "none", 4) == 0) {
 686                                vrc4171_slotb = SLOTB_IS_NONE;
 687                                options += 4;
 688                        }
 689
 690                        if (*options != ',')
 691                                return 1;
 692                        options++;
 693
 694                        if (strncmp(options, "memnoprobe", 10) == 0)
 695                                vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
 696                        if (strncmp(options, "ionoprobe", 9) == 0)
 697                                vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
 698                        if (strncmp(options, "noprobe", 7) == 0)
 699                                vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
 700                }
 701        }
 702
 703        return 1;
 704}
 705
 706__setup("vrc4171_card=", vrc4171_card_setup);
 707
 708static struct platform_driver vrc4171_card_driver = {
 709        .driver = {
 710                .name           = vrc4171_card_name,
 711                .owner          = THIS_MODULE,
 712        },
 713};
 714
 715static int __devinit vrc4171_card_init(void)
 716{
 717        int retval;
 718
 719        retval = platform_driver_register(&vrc4171_card_driver);
 720        if (retval < 0)
 721                return retval;
 722
 723        retval = platform_device_register(&vrc4171_card_device);
 724        if (retval < 0) {
 725                platform_driver_unregister(&vrc4171_card_driver);
 726                return retval;
 727        }
 728
 729        vrc4171_set_multifunction_pin(vrc4171_slotb);
 730
 731        retval = vrc4171_add_sockets();
 732        if (retval == 0)
 733                retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
 734                                     vrc4171_card_name, vrc4171_sockets);
 735
 736        if (retval < 0) {
 737                vrc4171_remove_sockets();
 738                platform_device_unregister(&vrc4171_card_device);
 739                platform_driver_unregister(&vrc4171_card_driver);
 740                return retval;
 741        }
 742
 743        printk(KERN_INFO "%s, connected to IRQ %d\n",
 744                vrc4171_card_driver.driver.name, vrc4171_irq);
 745
 746        return 0;
 747}
 748
 749static void __devexit vrc4171_card_exit(void)
 750{
 751        free_irq(vrc4171_irq, vrc4171_sockets);
 752        vrc4171_remove_sockets();
 753        platform_device_unregister(&vrc4171_card_device);
 754        platform_driver_unregister(&vrc4171_card_driver);
 755}
 756
 757module_init(vrc4171_card_init);
 758module_exit(vrc4171_card_exit);
 759
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