drivers/ata/pata_pcmcia.c

   1 /*
   2  *   pata_pcmcia.c - PCMCIA PATA controller driver.
   3  *   Copyright 2005-2006 Red Hat Inc, all rights reserved.
   4  *   PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
   5  *                                              <openembedded@hrw.one.pl>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2, or (at your option)
  10  *  any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; see the file COPYING.  If not, write to
  19  *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  *   Heavily based upon ide-cs.c
  22  *   The initial developer of the original code is David A. Hinds
  23  *   <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  24  *   are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  25  */
  26
  27 #include <linux/kernel.h>
  28 #include <linux/module.h>
  29 #include <linux/init.h>
  30 #include <linux/blkdev.h>
  31 #include <linux/delay.h>
  32 #include <linux/slab.h>
  33 #include <scsi/scsi_host.h>
  34 #include <linux/ata.h>
  35 #include <linux/libata.h>
  36
  37 #include <pcmcia/cs_types.h>
  38 #include <pcmcia/cs.h>
  39 #include <pcmcia/cistpl.h>
  40 #include <pcmcia/ds.h>
  41 #include <pcmcia/cisreg.h>
  42 #include <pcmcia/ciscode.h>
  43
  44
  45 #define DRV_NAME "pata_pcmcia"
  46 #define DRV_VERSION "0.3.5"
  47
  48 /**
  49  *      pcmcia_set_mode -       PCMCIA specific mode setup
  50  *      @link: link
  51  *      @r_failed_dev: Return pointer for failed device
  52  *
  53  *      Perform the tuning and setup of the devices and timings, which
  54  *      for PCMCIA is the same as any other controller. We wrap it however
  55  *      as we need to spot hardware with incorrect or missing master/slave
  56  *      decode, which alas is embarrassingly common in the PC world
  57  */
  58
  59 static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
  60 {
  61         struct ata_device *master = &link->device[0];
  62         struct ata_device *slave = &link->device[1];
  63
  64         if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
  65                 return ata_do_set_mode(link, r_failed_dev);
  66
  67         if (memcmp(master->id + ATA_ID_FW_REV,  slave->id + ATA_ID_FW_REV,
  68                            ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
  69                 /* Suspicious match, but could be two cards from
  70                    the same vendor - check serial */
  71                 if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
  72                            ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
  73                         ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
  74                         ata_dev_disable(slave);
  75                 }
  76         }
  77         return ata_do_set_mode(link, r_failed_dev);
  78 }
  79
  80 /**
  81  *      pcmcia_set_mode_8bit    -       PCMCIA specific mode setup
  82  *      @link: link
  83  *      @r_failed_dev: Return pointer for failed device
  84  *
  85  *      For the simple emulated 8bit stuff the less we do the better.
  86  */
  87
  88 static int pcmcia_set_mode_8bit(struct ata_link *link,
  89                                 struct ata_device **r_failed_dev)
  90 {
  91         return 0;
  92 }
  93
  94 /**
  95  *      ata_data_xfer_8bit       -      Transfer data by 8bit PIO
  96  *      @dev: device to target
  97  *      @buf: data buffer
  98  *      @buflen: buffer length
  99  *      @rw: read/write
 100  *
 101  *      Transfer data from/to the device data register by 8 bit PIO.
 102  *
 103  *      LOCKING:
 104  *      Inherited from caller.
 105  */
 106
 107 static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
 108                                 unsigned char *buf, unsigned int buflen, int rw)
 109 {
 110         struct ata_port *ap = dev->link->ap;
 111
 112         if (rw == READ)
 113                 ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
 114         else
 115                 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
 116
 117         return buflen;
 118 }
 119
 120 /**
 121  *      pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers
 122  *      @qc: command
 123  *
 124  *      Drain the FIFO and device of any stuck data following a command
 125  *      failing to complete. In some cases this is necessary before a
 126  *      reset will recover the device.
 127  *
 128  */
 129
 130 static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
 131 {
 132         int count;
 133         struct ata_port *ap;
 134
 135         /* We only need to flush incoming data when a command was running */
 136         if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
 137                 return;
 138
 139         ap = qc->ap;
 140
 141         /* Drain up to 64K of data before we give up this recovery method */
 142         for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
 143                                                         && count++ < 65536;)
 144                 ioread8(ap->ioaddr.data_addr);
 145
 146         if (count)
 147                 ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n",
 148                                                                 count);
 149
 150 }
 151
 152 static struct scsi_host_template pcmcia_sht = {
 153         ATA_PIO_SHT(DRV_NAME),
 154 };
 155
 156 static struct ata_port_operations pcmcia_port_ops = {
 157         .inherits       = &ata_sff_port_ops,
 158         .sff_data_xfer  = ata_sff_data_xfer_noirq,
 159         .cable_detect   = ata_cable_40wire,
 160         .set_mode       = pcmcia_set_mode,
 161 };
 162
 163 static struct ata_port_operations pcmcia_8bit_port_ops = {
 164         .inherits       = &ata_sff_port_ops,
 165         .sff_data_xfer  = ata_data_xfer_8bit,
 166         .cable_detect   = ata_cable_40wire,
 167         .set_mode       = pcmcia_set_mode_8bit,
 168         .sff_drain_fifo = pcmcia_8bit_drain_fifo,
 169 };
 170
 171
 172 struct pcmcia_config_check {
 173         unsigned long ctl_base;
 174         int skip_vcc;
 175         int is_kme;
 176 };
 177
 178 static int pcmcia_check_one_config(struct pcmcia_device *pdev,
 179                                    cistpl_cftable_entry_t *cfg,
 180                                    cistpl_cftable_entry_t *dflt,
 181                                    unsigned int vcc,
 182                                    void *priv_data)
 183 {
 184         struct pcmcia_config_check *stk = priv_data;
 185
 186         /* Check for matching Vcc, unless we're desperate */
 187         if (!stk->skip_vcc) {
 188                 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 189                         if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
 190                                 return -ENODEV;
 191                 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 192                         if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
 193                                 return -ENODEV;
 194                 }
 195         }
 196
 197         if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 198                 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 199         else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
 200                 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 201
 202         if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
 203                 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
 204                 pdev->io.BasePort1 = io->win[0].base;
 205                 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
 206                 if (!(io->flags & CISTPL_IO_16BIT))
 207                         pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 208                 if (io->nwin == 2) {
 209                         pdev->io.NumPorts1 = 8;
 210                         pdev->io.BasePort2 = io->win[1].base;
 211                         pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
 212                         if (pcmcia_request_io(pdev, &pdev->io) != 0)
 213                                 return -ENODEV;
 214                         stk->ctl_base = pdev->io.BasePort2;
 215                 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
 216                         pdev->io.NumPorts1 = io->win[0].len;
 217                         pdev->io.NumPorts2 = 0;
 218                         if (pcmcia_request_io(pdev, &pdev->io) != 0)
 219                                 return -ENODEV;
 220                         stk->ctl_base = pdev->io.BasePort1 + 0x0e;
 221                 } else
 222                         return -ENODEV;
 223                 /* If we've got this far, we're done */
 224                 return 0;
 225         }
 226         return -ENODEV;
 227 }
 228
 229 /**
 230  *      pcmcia_init_one         -       attach a PCMCIA interface
 231  *      @pdev: pcmcia device
 232  *
 233  *      Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
 234  *      shared IRQ.
 235  */
 236
 237 static int pcmcia_init_one(struct pcmcia_device *pdev)
 238 {
 239         struct ata_host *host;
 240         struct ata_port *ap;
 241         struct pcmcia_config_check *stk = NULL;
 242         int is_kme = 0, ret = -ENOMEM, p;
 243         unsigned long io_base, ctl_base;
 244         void __iomem *io_addr, *ctl_addr;
 245         int n_ports = 1;
 246         struct ata_port_operations *ops = &pcmcia_port_ops;
 247
 248         /* Set up attributes in order to probe card and get resources */
 249         pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 250         pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
 251         pdev->io.IOAddrLines = 3;
 252         pdev->conf.Attributes = CONF_ENABLE_IRQ;
 253         pdev->conf.IntType = INT_MEMORY_AND_IO;
 254
 255         /* See if we have a manufacturer identifier. Use it to set is_kme for
 256            vendor quirks */
 257         is_kme = ((pdev->manf_id == MANFID_KME) &&
 258                   ((pdev->card_id == PRODID_KME_KXLC005_A) ||
 259                    (pdev->card_id == PRODID_KME_KXLC005_B)));
 260
 261         /* Allocate resoure probing structures */
 262
 263         stk = kzalloc(sizeof(*stk), GFP_KERNEL);
 264         if (!stk)
 265                 goto out1;
 266         stk->is_kme = is_kme;
 267         stk->skip_vcc = io_base = ctl_base = 0;
 268
 269         if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) {
 270                 stk->skip_vcc = 1;
 271                 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk))
 272                         goto failed; /* No suitable config found */
 273         }
 274         io_base = pdev->io.BasePort1;
 275         ctl_base = stk->ctl_base;
 276         if (!pdev->irq)
 277                 goto failed;
 278
 279         ret = pcmcia_request_configuration(pdev, &pdev->conf);
 280         if (ret)
 281                 goto failed;
 282
 283         /* iomap */
 284         ret = -ENOMEM;
 285         io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
 286         ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
 287         if (!io_addr || !ctl_addr)
 288                 goto failed;
 289
 290         /* Success. Disable the IRQ nIEN line, do quirks */
 291         iowrite8(0x02, ctl_addr);
 292         if (is_kme)
 293                 iowrite8(0x81, ctl_addr + 0x01);
 294
 295         /* FIXME: Could be more ports at base + 0x10 but we only deal with
 296            one right now */
 297         if (pdev->io.NumPorts1 >= 0x20)
 298                 n_ports = 2;
 299
 300         if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
 301                 ops = &pcmcia_8bit_port_ops;
 302         /*
 303          *      Having done the PCMCIA plumbing the ATA side is relatively
 304          *      sane.
 305          */
 306         ret = -ENOMEM;
 307         host = ata_host_alloc(&pdev->dev, n_ports);
 308         if (!host)
 309                 goto failed;
 310
 311         for (p = 0; p < n_ports; p++) {
 312                 ap = host->ports[p];
 313
 314                 ap->ops = ops;
 315                 ap->pio_mask = ATA_PIO0;        /* ISA so PIO 0 cycles */
 316                 ap->flags |= ATA_FLAG_SLAVE_POSS;
 317                 ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
 318                 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
 319                 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
 320                 ata_sff_std_ports(&ap->ioaddr);
 321
 322                 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
 323         }
 324
 325         /* activate */
 326         ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt,
 327                                 IRQF_SHARED, &pcmcia_sht);
 328         if (ret)
 329                 goto failed;
 330
 331         pdev->priv = host;
 332         kfree(stk);
 333         return 0;
 334
 335 failed:
 336         kfree(stk);
 337         pcmcia_disable_device(pdev);
 338 out1:
 339         return ret;
 340 }
 341
 342 /**
 343  *      pcmcia_remove_one       -       unplug an pcmcia interface
 344  *      @pdev: pcmcia device
 345  *
 346  *      A PCMCIA ATA device has been unplugged. Perform the needed
 347  *      cleanup. Also called on module unload for any active devices.
 348  */
 349
 350 static void pcmcia_remove_one(struct pcmcia_device *pdev)
 351 {
 352         struct ata_host *host = pdev->priv;
 353
 354         if (host)
 355                 ata_host_detach(host);
 356
 357         pcmcia_disable_device(pdev);
 358 }
 359
 360 static struct pcmcia_device_id pcmcia_devices[] = {
 361         PCMCIA_DEVICE_FUNC_ID(4),
 362         PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000),        /* Corsair */
 363         PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000),        /* Hitachi */
 364         PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),        /* I-O Data CFA */
 365         PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),        /* Mitsubishi CFA */
 366         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
 367         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
 368         PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),        /* SanDisk CFA */
 369         PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000),        /* Kingston */
 370         PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620),        /* TI emulated */
 371         PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),        /* Toshiba */
 372         PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
 373         PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000),        /* Samsung */
 374         PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000),        /* Hitachi */
 375         PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
 376         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100),        /* Viking CFA */
 377         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200),        /* Lexar, Viking CFA */
 378         PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
 379         PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
 380         PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
 381         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
 382         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
 383         PCMCIA_DEVICE_PROD_ID12("CNF   ", "CD-ROM", 0x46d7db81, 0x66536591),
 384         PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
 385         PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
 386         PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
 387         PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
 388         PCMCIA_DEVICE_PROD_ID12("EXP   ", "CD-ROM", 0x0a5c52fd, 0x66536591),
 389         PCMCIA_DEVICE_PROD_ID12("EXP   ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
 390         PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
 391         PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
 392         PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
 393         PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
 394         PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 395         PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
 396         PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
 397         PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
 398         PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 399         PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
 400         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
 401         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
 402         PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2      ", 0xe37be2b5, 0x8671043b),
 403         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
 404         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
 405         PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
 406         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
 407         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
 408         PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
 409         PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
 410         PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
 411         PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
 412         PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
 413         PCMCIA_DEVICE_PROD_ID1("TRANSCEND    512M   ", 0xd0909443),
 414         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
 415         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 416         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 417         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
 418         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
 419         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
 420         PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 421         PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
 422         PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
 423         PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
 424         PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
 425         PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
 426         PCMCIA_DEVICE_NULL,
 427 };
 428
 429 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
 430
 431 static struct pcmcia_driver pcmcia_driver = {
 432         .owner          = THIS_MODULE,
 433         .drv = {
 434                 .name           = DRV_NAME,
 435         },
 436         .id_table       = pcmcia_devices,
 437         .probe          = pcmcia_init_one,
 438         .remove         = pcmcia_remove_one,
 439 };
 440
 441 static int __init pcmcia_init(void)
 442 {
 443         return pcmcia_register_driver(&pcmcia_driver);
 444 }
 445
 446 static void __exit pcmcia_exit(void)
 447 {
 448         pcmcia_unregister_driver(&pcmcia_driver);
 449 }
 450
 451 MODULE_AUTHOR("Alan Cox");
 452 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
 453 MODULE_LICENSE("GPL");
 454 MODULE_VERSION(DRV_VERSION);
 455
 456 module_init(pcmcia_init);
 457 module_exit(pcmcia_exit);