linux/drivers/pcmcia/pd6729.c
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   1/*
   2 * Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
   3 *
   4 * Based on the i82092.c driver.
   5 *
   6 * This software may be used and distributed according to the terms of
   7 * the GNU General Public License, incorporated herein by reference.
   8 */
   9
  10#include <linux/kernel.h>
  11#include <linux/module.h>
  12#include <linux/slab.h>
  13#include <linux/pci.h>
  14#include <linux/init.h>
  15#include <linux/workqueue.h>
  16#include <linux/interrupt.h>
  17#include <linux/device.h>
  18#include <linux/io.h>
  19
  20#include <pcmcia/ss.h>
  21
  22
  23#include "pd6729.h"
  24#include "i82365.h"
  25#include "cirrus.h"
  26
  27MODULE_LICENSE("GPL");
  28MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
  29MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>");
  30
  31#define MAX_SOCKETS 2
  32
  33/*
  34 * simple helper functions
  35 * External clock time, in nanoseconds.  120 ns = 8.33 MHz
  36 */
  37#define to_cycles(ns)   ((ns)/120)
  38
  39#ifndef NO_IRQ
  40#define NO_IRQ  ((unsigned int)(0))
  41#endif
  42
  43/*
  44 * PARAMETERS
  45 *  irq_mode=n
  46 *     Specifies the interrupt delivery mode.  The default (1) is to use PCI
  47 *     interrupts; a value of 0 selects ISA interrupts. This must be set for
  48 *     correct operation of PCI card readers.
  49 */
  50
  51static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
  52
  53module_param(irq_mode, int, 0444);
  54MODULE_PARM_DESC(irq_mode,
  55                "interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
  56
  57static DEFINE_SPINLOCK(port_lock);
  58
  59/* basic value read/write functions */
  60
  61static unsigned char indirect_read(struct pd6729_socket *socket,
  62                                   unsigned short reg)
  63{
  64        unsigned long port;
  65        unsigned char val;
  66        unsigned long flags;
  67
  68        spin_lock_irqsave(&port_lock, flags);
  69        reg += socket->number * 0x40;
  70        port = socket->io_base;
  71        outb(reg, port);
  72        val = inb(port + 1);
  73        spin_unlock_irqrestore(&port_lock, flags);
  74
  75        return val;
  76}
  77
  78static unsigned short indirect_read16(struct pd6729_socket *socket,
  79                                      unsigned short reg)
  80{
  81        unsigned long port;
  82        unsigned short tmp;
  83        unsigned long flags;
  84
  85        spin_lock_irqsave(&port_lock, flags);
  86        reg  = reg + socket->number * 0x40;
  87        port = socket->io_base;
  88        outb(reg, port);
  89        tmp = inb(port + 1);
  90        reg++;
  91        outb(reg, port);
  92        tmp = tmp | (inb(port + 1) << 8);
  93        spin_unlock_irqrestore(&port_lock, flags);
  94
  95        return tmp;
  96}
  97
  98static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
  99                           unsigned char value)
 100{
 101        unsigned long port;
 102        unsigned long flags;
 103
 104        spin_lock_irqsave(&port_lock, flags);
 105        reg = reg + socket->number * 0x40;
 106        port = socket->io_base;
 107        outb(reg, port);
 108        outb(value, port + 1);
 109        spin_unlock_irqrestore(&port_lock, flags);
 110}
 111
 112static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
 113                            unsigned char mask)
 114{
 115        unsigned long port;
 116        unsigned char val;
 117        unsigned long flags;
 118
 119        spin_lock_irqsave(&port_lock, flags);
 120        reg = reg + socket->number * 0x40;
 121        port = socket->io_base;
 122        outb(reg, port);
 123        val = inb(port + 1);
 124        val |= mask;
 125        outb(reg, port);
 126        outb(val, port + 1);
 127        spin_unlock_irqrestore(&port_lock, flags);
 128}
 129
 130static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
 131                              unsigned char mask)
 132{
 133        unsigned long port;
 134        unsigned char val;
 135        unsigned long flags;
 136
 137        spin_lock_irqsave(&port_lock, flags);
 138        reg = reg + socket->number * 0x40;
 139        port = socket->io_base;
 140        outb(reg, port);
 141        val = inb(port + 1);
 142        val &= ~mask;
 143        outb(reg, port);
 144        outb(val, port + 1);
 145        spin_unlock_irqrestore(&port_lock, flags);
 146}
 147
 148static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
 149                             unsigned short value)
 150{
 151        unsigned long port;
 152        unsigned char val;
 153        unsigned long flags;
 154
 155        spin_lock_irqsave(&port_lock, flags);
 156        reg = reg + socket->number * 0x40;
 157        port = socket->io_base;
 158
 159        outb(reg, port);
 160        val = value & 255;
 161        outb(val, port + 1);
 162
 163        reg++;
 164
 165        outb(reg, port);
 166        val = value >> 8;
 167        outb(val, port + 1);
 168        spin_unlock_irqrestore(&port_lock, flags);
 169}
 170
 171/* Interrupt handler functionality */
 172
 173static irqreturn_t pd6729_interrupt(int irq, void *dev)
 174{
 175        struct pd6729_socket *socket = (struct pd6729_socket *)dev;
 176        int i;
 177        int loopcount = 0;
 178        int handled = 0;
 179        unsigned int events, active = 0;
 180
 181        while (1) {
 182                loopcount++;
 183                if (loopcount > 20) {
 184                        printk(KERN_ERR "pd6729: infinite eventloop "
 185                               "in interrupt\n");
 186                        break;
 187                }
 188
 189                active = 0;
 190
 191                for (i = 0; i < MAX_SOCKETS; i++) {
 192                        unsigned int csc;
 193
 194                        /* card status change register */
 195                        csc = indirect_read(&socket[i], I365_CSC);
 196                        if (csc == 0)  /* no events on this socket */
 197                                continue;
 198
 199                        handled = 1;
 200                        events = 0;
 201
 202                        if (csc & I365_CSC_DETECT) {
 203                                events |= SS_DETECT;
 204                                dev_vdbg(&socket[i].socket.dev,
 205                                        "Card detected in socket %i!\n", i);
 206                        }
 207
 208                        if (indirect_read(&socket[i], I365_INTCTL)
 209                                                & I365_PC_IOCARD) {
 210                                /* For IO/CARDS, bit 0 means "read the card" */
 211                                events |= (csc & I365_CSC_STSCHG)
 212                                                ? SS_STSCHG : 0;
 213                        } else {
 214                                /* Check for battery/ready events */
 215                                events |= (csc & I365_CSC_BVD1)
 216                                                ? SS_BATDEAD : 0;
 217                                events |= (csc & I365_CSC_BVD2)
 218                                                ? SS_BATWARN : 0;
 219                                events |= (csc & I365_CSC_READY)
 220                                                ? SS_READY : 0;
 221                        }
 222
 223                        if (events)
 224                                pcmcia_parse_events(&socket[i].socket, events);
 225
 226                        active |= events;
 227                }
 228
 229                if (active == 0) /* no more events to handle */
 230                        break;
 231        }
 232        return IRQ_RETVAL(handled);
 233}
 234
 235/* socket functions */
 236
 237static void pd6729_interrupt_wrapper(unsigned long data)
 238{
 239        struct pd6729_socket *socket = (struct pd6729_socket *) data;
 240
 241        pd6729_interrupt(0, (void *)socket);
 242        mod_timer(&socket->poll_timer, jiffies + HZ);
 243}
 244
 245static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
 246{
 247        struct pd6729_socket *socket
 248                        = container_of(sock, struct pd6729_socket, socket);
 249        unsigned int status;
 250        unsigned int data;
 251        struct pd6729_socket *t;
 252
 253        /* Interface Status Register */
 254        status = indirect_read(socket, I365_STATUS);
 255        *value = 0;
 256
 257        if ((status & I365_CS_DETECT) == I365_CS_DETECT)
 258                *value |= SS_DETECT;
 259
 260        /*
 261         * IO cards have a different meaning of bits 0,1
 262         * Also notice the inverse-logic on the bits
 263         */
 264        if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
 265                /* IO card */
 266                if (!(status & I365_CS_STSCHG))
 267                        *value |= SS_STSCHG;
 268        } else {
 269                /* non I/O card */
 270                if (!(status & I365_CS_BVD1))
 271                        *value |= SS_BATDEAD;
 272                if (!(status & I365_CS_BVD2))
 273                        *value |= SS_BATWARN;
 274        }
 275
 276        if (status & I365_CS_WRPROT)
 277                *value |= SS_WRPROT;    /* card is write protected */
 278
 279        if (status & I365_CS_READY)
 280                *value |= SS_READY;     /* card is not busy */
 281
 282        if (status & I365_CS_POWERON)
 283                *value |= SS_POWERON;   /* power is applied to the card */
 284
 285        t = (socket->number) ? socket : socket + 1;
 286        indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
 287        data = indirect_read16(t, PD67_EXT_DATA);
 288        *value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
 289
 290        return 0;
 291}
 292
 293
 294static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
 295{
 296        struct pd6729_socket *socket
 297                        = container_of(sock, struct pd6729_socket, socket);
 298        unsigned char reg, data;
 299
 300        /* First, set the global controller options */
 301        indirect_write(socket, I365_GBLCTL, 0x00);
 302        indirect_write(socket, I365_GENCTL, 0x00);
 303
 304        /* Values for the IGENC register */
 305        socket->card_irq = state->io_irq;
 306
 307        reg = 0;
 308        /* The reset bit has "inverse" logic */
 309        if (!(state->flags & SS_RESET))
 310                reg |= I365_PC_RESET;
 311        if (state->flags & SS_IOCARD)
 312                reg |= I365_PC_IOCARD;
 313
 314        /* IGENC, Interrupt and General Control Register */
 315        indirect_write(socket, I365_INTCTL, reg);
 316
 317        /* Power registers */
 318
 319        reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
 320
 321        if (state->flags & SS_PWR_AUTO) {
 322                dev_dbg(&sock->dev, "Auto power\n");
 323                reg |= I365_PWR_AUTO;   /* automatic power mngmnt */
 324        }
 325        if (state->flags & SS_OUTPUT_ENA) {
 326                dev_dbg(&sock->dev, "Power Enabled\n");
 327                reg |= I365_PWR_OUT;    /* enable power */
 328        }
 329
 330        switch (state->Vcc) {
 331        case 0:
 332                break;
 333        case 33:
 334                dev_dbg(&sock->dev,
 335                        "setting voltage to Vcc to 3.3V on socket %i\n",
 336                        socket->number);
 337                reg |= I365_VCC_5V;
 338                indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
 339                break;
 340        case 50:
 341                dev_dbg(&sock->dev,
 342                        "setting voltage to Vcc to 5V on socket %i\n",
 343                        socket->number);
 344                reg |= I365_VCC_5V;
 345                indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
 346                break;
 347        default:
 348                dev_dbg(&sock->dev,
 349                        "pd6729_set_socket called with invalid VCC power "
 350                        "value: %i\n", state->Vcc);
 351                return -EINVAL;
 352        }
 353
 354        switch (state->Vpp) {
 355        case 0:
 356                dev_dbg(&sock->dev, "not setting Vpp on socket %i\n",
 357                        socket->number);
 358                break;
 359        case 33:
 360        case 50:
 361                dev_dbg(&sock->dev, "setting Vpp to Vcc for socket %i\n",
 362                        socket->number);
 363                reg |= I365_VPP1_5V;
 364                break;
 365        case 120:
 366                dev_dbg(&sock->dev, "setting Vpp to 12.0\n");
 367                reg |= I365_VPP1_12V;
 368                break;
 369        default:
 370                dev_dbg(&sock->dev, "pd6729: pd6729_set_socket called with "
 371                        "invalid VPP power value: %i\n", state->Vpp);
 372                return -EINVAL;
 373        }
 374
 375        /* only write if changed */
 376        if (reg != indirect_read(socket, I365_POWER))
 377                indirect_write(socket, I365_POWER, reg);
 378
 379        if (irq_mode == 1) {
 380                /* all interrupts are to be done as PCI interrupts */
 381                data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
 382        } else
 383                data = 0;
 384
 385        indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
 386        indirect_write(socket, PD67_EXT_DATA, data);
 387
 388        /* Enable specific interrupt events */
 389
 390        reg = 0x00;
 391        if (state->csc_mask & SS_DETECT)
 392                reg |= I365_CSC_DETECT;
 393
 394        if (state->flags & SS_IOCARD) {
 395                if (state->csc_mask & SS_STSCHG)
 396                        reg |= I365_CSC_STSCHG;
 397        } else {
 398                if (state->csc_mask & SS_BATDEAD)
 399                        reg |= I365_CSC_BVD1;
 400                if (state->csc_mask & SS_BATWARN)
 401                        reg |= I365_CSC_BVD2;
 402                if (state->csc_mask & SS_READY)
 403                        reg |= I365_CSC_READY;
 404        }
 405        if (irq_mode == 1)
 406                reg |= 0x30;    /* management IRQ: PCI INTA# = "irq 3" */
 407        indirect_write(socket, I365_CSCINT, reg);
 408
 409        reg = indirect_read(socket, I365_INTCTL);
 410        if (irq_mode == 1)
 411                reg |= 0x03;    /* card IRQ: PCI INTA# = "irq 3" */
 412        else
 413                reg |= socket->card_irq;
 414        indirect_write(socket, I365_INTCTL, reg);
 415
 416        /* now clear the (probably bogus) pending stuff by doing a dummy read */
 417        (void)indirect_read(socket, I365_CSC);
 418
 419        return 0;
 420}
 421
 422static int pd6729_set_io_map(struct pcmcia_socket *sock,
 423                             struct pccard_io_map *io)
 424{
 425        struct pd6729_socket *socket
 426                        = container_of(sock, struct pd6729_socket, socket);
 427        unsigned char map, ioctl;
 428
 429        map = io->map;
 430
 431        /* Check error conditions */
 432        if (map > 1) {
 433                dev_dbg(&sock->dev, "pd6729_set_io_map with invalid map\n");
 434                return -EINVAL;
 435        }
 436
 437        /* Turn off the window before changing anything */
 438        if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
 439                indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
 440
 441        /* dev_dbg(&sock->dev, "set_io_map: Setting range to %x - %x\n",
 442           io->start, io->stop);*/
 443
 444        /* write the new values */
 445        indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
 446        indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
 447
 448        ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
 449
 450        if (io->flags & MAP_0WS)
 451                ioctl |= I365_IOCTL_0WS(map);
 452        if (io->flags & MAP_16BIT)
 453                ioctl |= I365_IOCTL_16BIT(map);
 454        if (io->flags & MAP_AUTOSZ)
 455                ioctl |= I365_IOCTL_IOCS16(map);
 456
 457        indirect_write(socket, I365_IOCTL, ioctl);
 458
 459        /* Turn the window back on if needed */
 460        if (io->flags & MAP_ACTIVE)
 461                indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
 462
 463        return 0;
 464}
 465
 466static int pd6729_set_mem_map(struct pcmcia_socket *sock,
 467                              struct pccard_mem_map *mem)
 468{
 469        struct pd6729_socket *socket
 470                         = container_of(sock, struct pd6729_socket, socket);
 471        unsigned short base, i;
 472        unsigned char map;
 473
 474        map = mem->map;
 475        if (map > 4) {
 476                dev_warn(&sock->dev, "invalid map requested\n");
 477                return -EINVAL;
 478        }
 479
 480        if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
 481                dev_warn(&sock->dev, "invalid invalid address / speed\n");
 482                return -EINVAL;
 483        }
 484
 485        /* Turn off the window before changing anything */
 486        if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
 487                indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
 488
 489        /* write the start address */
 490        base = I365_MEM(map);
 491        i = (mem->res->start >> 12) & 0x0fff;
 492        if (mem->flags & MAP_16BIT)
 493                i |= I365_MEM_16BIT;
 494        if (mem->flags & MAP_0WS)
 495                i |= I365_MEM_0WS;
 496        indirect_write16(socket, base + I365_W_START, i);
 497
 498        /* write the stop address */
 499
 500        i = (mem->res->end >> 12) & 0x0fff;
 501        switch (to_cycles(mem->speed)) {
 502        case 0:
 503                break;
 504        case 1:
 505                i |= I365_MEM_WS0;
 506                break;
 507        case 2:
 508                i |= I365_MEM_WS1;
 509                break;
 510        default:
 511                i |= I365_MEM_WS1 | I365_MEM_WS0;
 512                break;
 513        }
 514
 515        indirect_write16(socket, base + I365_W_STOP, i);
 516
 517        /* Take care of high byte */
 518        indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
 519        indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
 520
 521        /* card start */
 522
 523        i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
 524        if (mem->flags & MAP_WRPROT)
 525                i |= I365_MEM_WRPROT;
 526        if (mem->flags & MAP_ATTRIB) {
 527                /* dev_dbg(&sock->dev, "requesting attribute memory for "
 528                   "socket %i\n", socket->number);*/
 529                i |= I365_MEM_REG;
 530        } else {
 531                /* dev_dbg(&sock->dev, "requesting normal memory for "
 532                   "socket %i\n", socket->number);*/
 533        }
 534        indirect_write16(socket, base + I365_W_OFF, i);
 535
 536        /* Enable the window if necessary */
 537        if (mem->flags & MAP_ACTIVE)
 538                indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
 539
 540        return 0;
 541}
 542
 543static int pd6729_init(struct pcmcia_socket *sock)
 544{
 545        int i;
 546        struct resource res = { .end = 0x0fff };
 547        pccard_io_map io = { 0, 0, 0, 0, 1 };
 548        pccard_mem_map mem = { .res = &res, };
 549
 550        pd6729_set_socket(sock, &dead_socket);
 551        for (i = 0; i < 2; i++) {
 552                io.map = i;
 553                pd6729_set_io_map(sock, &io);
 554        }
 555        for (i = 0; i < 5; i++) {
 556                mem.map = i;
 557                pd6729_set_mem_map(sock, &mem);
 558        }
 559
 560        return 0;
 561}
 562
 563
 564/* the pccard structure and its functions */
 565static struct pccard_operations pd6729_operations = {
 566        .init                   = pd6729_init,
 567        .get_status             = pd6729_get_status,
 568        .set_socket             = pd6729_set_socket,
 569        .set_io_map             = pd6729_set_io_map,
 570        .set_mem_map            = pd6729_set_mem_map,
 571};
 572
 573static irqreturn_t pd6729_test(int irq, void *dev)
 574{
 575        pr_devel("-> hit on irq %d\n", irq);
 576        return IRQ_HANDLED;
 577}
 578
 579static int pd6729_check_irq(int irq)
 580{
 581        int ret;
 582
 583        ret = request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x",
 584                          pd6729_test);
 585        if (ret)
 586                return -1;
 587
 588        free_irq(irq, pd6729_test);
 589        return 0;
 590}
 591
 592static u_int pd6729_isa_scan(void)
 593{
 594        u_int mask0, mask = 0;
 595        int i;
 596
 597        if (irq_mode == 1) {
 598                printk(KERN_INFO "pd6729: PCI card interrupts, "
 599                       "PCI status changes\n");
 600                return 0;
 601        }
 602
 603        mask0 = PD67_MASK;
 604
 605        /* just find interrupts that aren't in use */
 606        for (i = 0; i < 16; i++)
 607                if ((mask0 & (1 << i)) && (pd6729_check_irq(i) == 0))
 608                        mask |= (1 << i);
 609
 610        printk(KERN_INFO "pd6729: ISA irqs = ");
 611        for (i = 0; i < 16; i++)
 612                if (mask & (1<<i))
 613                        printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
 614
 615        if (mask == 0)
 616                printk("none!");
 617        else
 618                printk("  polling status changes.\n");
 619
 620        return mask;
 621}
 622
 623static int pd6729_pci_probe(struct pci_dev *dev,
 624                                      const struct pci_device_id *id)
 625{
 626        int i, j, ret;
 627        u_int mask;
 628        char configbyte;
 629        struct pd6729_socket *socket;
 630
 631        socket = kzalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
 632                         GFP_KERNEL);
 633        if (!socket) {
 634                dev_warn(&dev->dev, "failed to kzalloc socket.\n");
 635                return -ENOMEM;
 636        }
 637
 638        ret = pci_enable_device(dev);
 639        if (ret) {
 640                dev_warn(&dev->dev, "failed to enable pci_device.\n");
 641                goto err_out_free_mem;
 642        }
 643
 644        if (!pci_resource_start(dev, 0)) {
 645                dev_warn(&dev->dev, "refusing to load the driver as the "
 646                        "io_base is NULL.\n");
 647                goto err_out_disable;
 648        }
 649
 650        dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
 651                "on irq %d\n",
 652                (unsigned long long)pci_resource_start(dev, 0), dev->irq);
 653        /*
 654         * Since we have no memory BARs some firmware may not
 655         * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
 656         */
 657        pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
 658        if (!(configbyte & PCI_COMMAND_MEMORY)) {
 659                dev_dbg(&dev->dev, "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
 660                configbyte |= PCI_COMMAND_MEMORY;
 661                pci_write_config_byte(dev, PCI_COMMAND, configbyte);
 662        }
 663
 664        ret = pci_request_regions(dev, "pd6729");
 665        if (ret) {
 666                dev_warn(&dev->dev, "pci request region failed.\n");
 667                goto err_out_disable;
 668        }
 669
 670        if (dev->irq == NO_IRQ)
 671                irq_mode = 0;   /* fall back to ISA interrupt mode */
 672
 673        mask = pd6729_isa_scan();
 674        if (irq_mode == 0 && mask == 0) {
 675                dev_warn(&dev->dev, "no ISA interrupt is available.\n");
 676                goto err_out_free_res;
 677        }
 678
 679        for (i = 0; i < MAX_SOCKETS; i++) {
 680                socket[i].io_base = pci_resource_start(dev, 0);
 681                socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
 682                socket[i].socket.map_size = 0x1000;
 683                socket[i].socket.irq_mask = mask;
 684                socket[i].socket.pci_irq  = dev->irq;
 685                socket[i].socket.cb_dev = dev;
 686                socket[i].socket.owner = THIS_MODULE;
 687
 688                socket[i].number = i;
 689
 690                socket[i].socket.ops = &pd6729_operations;
 691                socket[i].socket.resource_ops = &pccard_nonstatic_ops;
 692                socket[i].socket.dev.parent = &dev->dev;
 693                socket[i].socket.driver_data = &socket[i];
 694        }
 695
 696        pci_set_drvdata(dev, socket);
 697        if (irq_mode == 1) {
 698                /* Register the interrupt handler */
 699                ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
 700                                  "pd6729", socket);
 701                if (ret) {
 702                        dev_err(&dev->dev, "Failed to register irq %d\n",
 703                                dev->irq);
 704                        goto err_out_free_res;
 705                }
 706        } else {
 707                /* poll Card status change */
 708                init_timer(&socket->poll_timer);
 709                socket->poll_timer.function = pd6729_interrupt_wrapper;
 710                socket->poll_timer.data = (unsigned long)socket;
 711                socket->poll_timer.expires = jiffies + HZ;
 712                add_timer(&socket->poll_timer);
 713        }
 714
 715        for (i = 0; i < MAX_SOCKETS; i++) {
 716                ret = pcmcia_register_socket(&socket[i].socket);
 717                if (ret) {
 718                        dev_warn(&dev->dev, "pcmcia_register_socket failed.\n");
 719                        for (j = 0; j < i ; j++)
 720                                pcmcia_unregister_socket(&socket[j].socket);
 721                        goto err_out_free_res2;
 722                }
 723        }
 724
 725        return 0;
 726
 727err_out_free_res2:
 728        if (irq_mode == 1)
 729                free_irq(dev->irq, socket);
 730        else
 731                del_timer_sync(&socket->poll_timer);
 732err_out_free_res:
 733        pci_release_regions(dev);
 734err_out_disable:
 735        pci_disable_device(dev);
 736
 737err_out_free_mem:
 738        kfree(socket);
 739        return ret;
 740}
 741
 742static void pd6729_pci_remove(struct pci_dev *dev)
 743{
 744        int i;
 745        struct pd6729_socket *socket = pci_get_drvdata(dev);
 746
 747        for (i = 0; i < MAX_SOCKETS; i++) {
 748                /* Turn off all interrupt sources */
 749                indirect_write(&socket[i], I365_CSCINT, 0);
 750                indirect_write(&socket[i], I365_INTCTL, 0);
 751
 752                pcmcia_unregister_socket(&socket[i].socket);
 753        }
 754
 755        if (irq_mode == 1)
 756                free_irq(dev->irq, socket);
 757        else
 758                del_timer_sync(&socket->poll_timer);
 759        pci_release_regions(dev);
 760        pci_disable_device(dev);
 761
 762        kfree(socket);
 763}
 764
 765static DEFINE_PCI_DEVICE_TABLE(pd6729_pci_ids) = {
 766        { PCI_DEVICE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6729) },
 767        { }
 768};
 769MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
 770
 771static struct pci_driver pd6729_pci_driver = {
 772        .name           = "pd6729",
 773        .id_table       = pd6729_pci_ids,
 774        .probe          = pd6729_pci_probe,
 775        .remove         = pd6729_pci_remove,
 776};
 777
 778static int pd6729_module_init(void)
 779{
 780        return pci_register_driver(&pd6729_pci_driver);
 781}
 782
 783static void pd6729_module_exit(void)
 784{
 785        pci_unregister_driver(&pd6729_pci_driver);
 786}
 787
 788module_init(pd6729_module_init);
 789module_exit(pd6729_module_exit);
 790
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