drivers/ide/ide-cs.c

   1 /*======================================================================
   2
   3     A driver for PCMCIA IDE/ATA disk cards
   4
   5     The contents of this file are subject to the Mozilla Public
   6     License Version 1.1 (the "License"); you may not use this file
   7     except in compliance with the License. You may obtain a copy of
   8     the License at http://www.mozilla.org/MPL/
   9
  10     Software distributed under the License is distributed on an "AS
  11     IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  12     implied. See the License for the specific language governing
  13     rights and limitations under the License.
  14
  15     The initial developer of the original code is David A. Hinds
  16     <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  17     are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  18
  19     Alternatively, the contents of this file may be used under the
  20     terms of the GNU General Public License version 2 (the "GPL"), in
  21     which case the provisions of the GPL are applicable instead of the
  22     above.  If you wish to allow the use of your version of this file
  23     only under the terms of the GPL and not to allow others to use
  24     your version of this file under the MPL, indicate your decision
  25     by deleting the provisions above and replace them with the notice
  26     and other provisions required by the GPL.  If you do not delete
  27     the provisions above, a recipient may use your version of this
  28     file under either the MPL or the GPL.
  29
  30 ======================================================================*/
  31
  32 #include <linux/module.h>
  33 #include <linux/kernel.h>
  34 #include <linux/init.h>
  35 #include <linux/ptrace.h>
  36 #include <linux/slab.h>
  37 #include <linux/string.h>
  38 #include <linux/timer.h>
  39 #include <linux/ioport.h>
  40 #include <linux/ide.h>
  41 #include <linux/major.h>
  42 #include <linux/delay.h>
  43 #include <asm/io.h>
  44 #include <asm/system.h>
  45
  46 #include <pcmcia/cs_types.h>
  47 #include <pcmcia/cs.h>
  48 #include <pcmcia/cistpl.h>
  49 #include <pcmcia/ds.h>
  50 #include <pcmcia/cisreg.h>
  51 #include <pcmcia/ciscode.h>
  52
  53 #define DRV_NAME "ide-cs"
  54
  55 /*====================================================================*/
  56
  57 /* Module parameters */
  58
  59 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
  60 MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
  61 MODULE_LICENSE("Dual MPL/GPL");
  62
  63 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
  64
  65 #ifdef CONFIG_PCMCIA_DEBUG
  66 INT_MODULE_PARM(pc_debug, 0);
  67 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
  68 #else
  69 #define DEBUG(n, args...)
  70 #endif
  71
  72 /*====================================================================*/
  73
  74 typedef struct ide_info_t {
  75         struct pcmcia_device    *p_dev;
  76         struct ide_host         *host;
  77     int         ndev;
  78     dev_node_t  node;
  79 } ide_info_t;
  80
  81 static void ide_release(struct pcmcia_device *);
  82 static int ide_config(struct pcmcia_device *);
  83
  84 static void ide_detach(struct pcmcia_device *p_dev);
  85
  86
  87
  88
  89 /*======================================================================
  90
  91     ide_attach() creates an "instance" of the driver, allocating
  92     local data structures for one device.  The device is registered
  93     with Card Services.
  94
  95 ======================================================================*/
  96
  97 static int ide_probe(struct pcmcia_device *link)
  98 {
  99     ide_info_t *info;
 100
 101     DEBUG(0, "ide_attach()\n");
 102
 103     /* Create new ide device */
 104     info = kzalloc(sizeof(*info), GFP_KERNEL);
 105     if (!info)
 106         return -ENOMEM;
 107
 108     info->p_dev = link;
 109     link->priv = info;
 110
 111     link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 112     link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
 113     link->io.IOAddrLines = 3;
 114     link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 115     link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 116     link->conf.Attributes = CONF_ENABLE_IRQ;
 117     link->conf.IntType = INT_MEMORY_AND_IO;
 118
 119     return ide_config(link);
 120 } /* ide_attach */
 121
 122 /*======================================================================
 123
 124     This deletes a driver "instance".  The device is de-registered
 125     with Card Services.  If it has been released, all local data
 126     structures are freed.  Otherwise, the structures will be freed
 127     when the device is released.
 128
 129 ======================================================================*/
 130
 131 static void ide_detach(struct pcmcia_device *link)
 132 {
 133     ide_info_t *info = link->priv;
 134     ide_hwif_t *hwif = info->host->ports[0];
 135     unsigned long data_addr, ctl_addr;
 136
 137     DEBUG(0, "ide_detach(0x%p)\n", link);
 138
 139     data_addr = hwif->io_ports.data_addr;
 140     ctl_addr  = hwif->io_ports.ctl_addr;
 141
 142     ide_release(link);
 143
 144     release_region(ctl_addr, 1);
 145     release_region(data_addr, 8);
 146
 147     kfree(info);
 148 } /* ide_detach */
 149
 150 static const struct ide_port_ops idecs_port_ops = {
 151         .quirkproc              = ide_undecoded_slave,
 152 };
 153
 154 static const struct ide_port_info idecs_port_info = {
 155         .port_ops               = &idecs_port_ops,
 156         .host_flags             = IDE_HFLAG_NO_DMA,
 157 };
 158
 159 static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
 160                                 unsigned long irq, struct pcmcia_device *handle)
 161 {
 162     struct ide_host *host;
 163     ide_hwif_t *hwif;
 164     int i, rc;
 165     hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
 166
 167     if (!request_region(io, 8, DRV_NAME)) {
 168         printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
 169                         DRV_NAME, io, io + 7);
 170         return NULL;
 171     }
 172
 173     if (!request_region(ctl, 1, DRV_NAME)) {
 174         printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
 175                         DRV_NAME, ctl);
 176         release_region(io, 8);
 177         return NULL;
 178     }
 179
 180     memset(&hw, 0, sizeof(hw));
 181     ide_std_init_ports(&hw, io, ctl);
 182     hw.irq = irq;
 183     hw.chipset = ide_pci;
 184     hw.dev = &handle->dev;
 185
 186     rc = ide_host_add(&idecs_port_info, hws, &host);
 187     if (rc)
 188         goto out_release;
 189
 190     hwif = host->ports[0];
 191
 192     if (hwif->present)
 193         return host;
 194
 195     /* retry registration in case device is still spinning up */
 196     for (i = 0; i < 10; i++) {
 197         msleep(100);
 198         ide_port_scan(hwif);
 199         if (hwif->present)
 200             return host;
 201     }
 202
 203     return host;
 204
 205 out_release:
 206     release_region(ctl, 1);
 207     release_region(io, 8);
 208     return NULL;
 209 }
 210
 211 /*======================================================================
 212
 213     ide_config() is scheduled to run after a CARD_INSERTION event
 214     is received, to configure the PCMCIA socket, and to make the
 215     ide device available to the system.
 216
 217 ======================================================================*/
 218
 219 #define CS_CHECK(fn, ret) \
 220 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 221
 222 struct pcmcia_config_check {
 223         unsigned long ctl_base;
 224         int skip_vcc;
 225         int is_kme;
 226 };
 227
 228 static int pcmcia_check_one_config(struct pcmcia_device *pdev,
 229                                    cistpl_cftable_entry_t *cfg,
 230                                    cistpl_cftable_entry_t *dflt,
 231                                    unsigned int vcc,
 232                                    void *priv_data)
 233 {
 234         struct pcmcia_config_check *stk = priv_data;
 235
 236         /* Check for matching Vcc, unless we're desperate */
 237         if (!stk->skip_vcc) {
 238                 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 239                         if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
 240                                 return -ENODEV;
 241                 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 242                         if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
 243                                 return -ENODEV;
 244                 }
 245         }
 246
 247         if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 248                 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 249         else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
 250                 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 251
 252         if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
 253                 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
 254                 pdev->conf.ConfigIndex = cfg->index;
 255                 pdev->io.BasePort1 = io->win[0].base;
 256                 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
 257                 if (!(io->flags & CISTPL_IO_16BIT))
 258                         pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 259                 if (io->nwin == 2) {
 260                         pdev->io.NumPorts1 = 8;
 261                         pdev->io.BasePort2 = io->win[1].base;
 262                         pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
 263                         if (pcmcia_request_io(pdev, &pdev->io) != 0)
 264                                 return -ENODEV;
 265                         stk->ctl_base = pdev->io.BasePort2;
 266                 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
 267                         pdev->io.NumPorts1 = io->win[0].len;
 268                         pdev->io.NumPorts2 = 0;
 269                         if (pcmcia_request_io(pdev, &pdev->io) != 0)
 270                                 return -ENODEV;
 271                         stk->ctl_base = pdev->io.BasePort1 + 0x0e;
 272                 } else
 273                         return -ENODEV;
 274                 /* If we've got this far, we're done */
 275                 return 0;
 276         }
 277         return -ENODEV;
 278 }
 279
 280 static int ide_config(struct pcmcia_device *link)
 281 {
 282     ide_info_t *info = link->priv;
 283     struct pcmcia_config_check *stk = NULL;
 284     int last_ret = 0, last_fn = 0, is_kme = 0;
 285     unsigned long io_base, ctl_base;
 286     struct ide_host *host;
 287
 288     DEBUG(0, "ide_config(0x%p)\n", link);
 289
 290     is_kme = ((link->manf_id == MANFID_KME) &&
 291               ((link->card_id == PRODID_KME_KXLC005_A) ||
 292                (link->card_id == PRODID_KME_KXLC005_B)));
 293
 294     stk = kzalloc(sizeof(*stk), GFP_KERNEL);
 295     if (!stk)
 296             goto err_mem;
 297     stk->is_kme = is_kme;
 298     stk->skip_vcc = io_base = ctl_base = 0;
 299
 300     if (pcmcia_loop_config(link, pcmcia_check_one_config, stk)) {
 301             stk->skip_vcc = 1;
 302             if (pcmcia_loop_config(link, pcmcia_check_one_config, stk))
 303                     goto failed; /* No suitable config found */
 304     }
 305     io_base = link->io.BasePort1;
 306     ctl_base = stk->ctl_base;
 307
 308     CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
 309     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 310
 311     /* disable drive interrupts during IDE probe */
 312     outb(0x02, ctl_base);
 313
 314     /* special setup for KXLC005 card */
 315     if (is_kme)
 316         outb(0x81, ctl_base+1);
 317
 318      host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link);
 319      if (host == NULL && link->io.NumPorts1 == 0x20) {
 320             outb(0x02, ctl_base + 0x10);
 321             host = idecs_register(io_base + 0x10, ctl_base + 0x10,
 322                                   link->irq.AssignedIRQ, link);
 323     }
 324
 325     if (host == NULL)
 326         goto failed;
 327
 328     info->ndev = 1;
 329     sprintf(info->node.dev_name, "hd%c", 'a' + host->ports[0]->index * 2);
 330     info->node.major = host->ports[0]->major;
 331     info->node.minor = 0;
 332     info->host = host;
 333     link->dev_node = &info->node;
 334     printk(KERN_INFO "ide-cs: %s: Vpp = %d.%d\n",
 335            info->node.dev_name, link->conf.Vpp / 10, link->conf.Vpp % 10);
 336
 337     kfree(stk);
 338     return 0;
 339
 340 err_mem:
 341     printk(KERN_NOTICE "ide-cs: ide_config failed memory allocation\n");
 342     goto failed;
 343
 344 cs_failed:
 345     cs_error(link, last_fn, last_ret);
 346 failed:
 347     kfree(stk);
 348     ide_release(link);
 349     return -ENODEV;
 350 } /* ide_config */
 351
 352 /*======================================================================
 353
 354     After a card is removed, ide_release() will unregister the net
 355     device, and release the PCMCIA configuration.  If the device is
 356     still open, this will be postponed until it is closed.
 357
 358 ======================================================================*/
 359
 360 static void ide_release(struct pcmcia_device *link)
 361 {
 362     ide_info_t *info = link->priv;
 363     struct ide_host *host = info->host;
 364
 365     DEBUG(0, "ide_release(0x%p)\n", link);
 366
 367     if (info->ndev)
 368         /* FIXME: if this fails we need to queue the cleanup somehow
 369            -- need to investigate the required PCMCIA magic */
 370         ide_host_remove(host);
 371
 372     info->ndev = 0;
 373
 374     pcmcia_disable_device(link);
 375 } /* ide_release */
 376
 377
 378 /*======================================================================
 379
 380     The card status event handler.  Mostly, this schedules other
 381     stuff to run after an event is received.  A CARD_REMOVAL event
 382     also sets some flags to discourage the ide drivers from
 383     talking to the ports.
 384
 385 ======================================================================*/
 386
 387 static struct pcmcia_device_id ide_ids[] = {
 388         PCMCIA_DEVICE_FUNC_ID(4),
 389         PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000),        /* Corsair */
 390         PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000),        /* Hitachi */
 391         PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),        /* I-O Data CFA */
 392         PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),        /* Mitsubishi CFA */
 393         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
 394         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
 395         PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),        /* SanDisk CFA */
 396         PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000),        /* Kingston */
 397         PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620),        /* TI emulated */
 398         PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),        /* Toshiba */
 399         PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
 400         PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000),        /* Samsung */
 401         PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000),        /* Hitachi */
 402         PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
 403         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100),        /* Viking CFA */
 404         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200),        /* Lexar, Viking CFA */
 405         PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
 406         PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
 407         PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
 408         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
 409         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
 410         PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
 411         PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
 412         PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
 413         PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
 414         PCMCIA_DEVICE_PROD_ID12("EXP   ", "CD-ROM", 0x0a5c52fd, 0x66536591),
 415         PCMCIA_DEVICE_PROD_ID12("EXP   ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
 416         PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
 417         PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
 418         PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
 419         PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
 420         PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 421         PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
 422         PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 423         PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
 424         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
 425         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
 426         PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2      ", 0xe37be2b5, 0x8671043b),
 427         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
 428         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
 429         PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
 430         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
 431         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
 432         PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
 433         PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
 434         PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
 435         PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
 436         PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
 437         PCMCIA_DEVICE_PROD_ID1("TRANSCEND    512M   ", 0xd0909443),
 438         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
 439         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 440         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 441         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
 442         PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 443         PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
 444         PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
 445         PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
 446         PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
 447         PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
 448         PCMCIA_DEVICE_NULL,
 449 };
 450 MODULE_DEVICE_TABLE(pcmcia, ide_ids);
 451
 452 static struct pcmcia_driver ide_cs_driver = {
 453         .owner          = THIS_MODULE,
 454         .drv            = {
 455                 .name   = "ide-cs",
 456         },
 457         .probe          = ide_probe,
 458         .remove         = ide_detach,
 459         .id_table       = ide_ids,
 460 };
 461
 462 static int __init init_ide_cs(void)
 463 {
 464         return pcmcia_register_driver(&ide_cs_driver);
 465 }
 466
 467 static void __exit exit_ide_cs(void)
 468 {
 469         pcmcia_unregister_driver(&ide_cs_driver);
 470 }
 471
 472 late_initcall(init_ide_cs);
 473 module_exit(exit_ide_cs);