drivers/ide/legacy/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/hdreg.h>
  42 #include <linux/major.h>
  43 #include <linux/delay.h>
  44 #include <asm/io.h>
  45 #include <asm/system.h>
  46
  47 #include <pcmcia/cs_types.h>
  48 #include <pcmcia/cs.h>
  49 #include <pcmcia/cistpl.h>
  50 #include <pcmcia/ds.h>
  51 #include <pcmcia/cisreg.h>
  52 #include <pcmcia/ciscode.h>
  53
  54 #define DRV_NAME "ide-cs"
  55
  56 /*====================================================================*/
  57
  58 /* Module parameters */
  59
  60 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
  61 MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
  62 MODULE_LICENSE("Dual MPL/GPL");
  63
  64 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
  65
  66 #ifdef CONFIG_PCMCIA_DEBUG
  67 INT_MODULE_PARM(pc_debug, 0);
  68 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
  69 #else
  70 #define DEBUG(n, args...)
  71 #endif
  72
  73 /*====================================================================*/
  74
  75 typedef struct ide_info_t {
  76         struct pcmcia_device    *p_dev;
  77         struct ide_host         *host;
  78     int         ndev;
  79     dev_node_t  node;
  80 } ide_info_t;
  81
  82 static void ide_release(struct pcmcia_device *);
  83 static int ide_config(struct pcmcia_device *);
  84
  85 static void ide_detach(struct pcmcia_device *p_dev);
  86
  87
  88
  89
  90 /*======================================================================
  91
  92     ide_attach() creates an "instance" of the driver, allocating
  93     local data structures for one device.  The device is registered
  94     with Card Services.
  95
  96 ======================================================================*/
  97
  98 static int ide_probe(struct pcmcia_device *link)
  99 {
 100     ide_info_t *info;
 101
 102     DEBUG(0, "ide_attach()\n");
 103
 104     /* Create new ide device */
 105     info = kzalloc(sizeof(*info), GFP_KERNEL);
 106     if (!info)
 107         return -ENOMEM;
 108
 109     info->p_dev = link;
 110     link->priv = info;
 111
 112     link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 113     link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
 114     link->io.IOAddrLines = 3;
 115     link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 116     link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 117     link->conf.Attributes = CONF_ENABLE_IRQ;
 118     link->conf.IntType = INT_MEMORY_AND_IO;
 119
 120     return ide_config(link);
 121 } /* ide_attach */
 122
 123 /*======================================================================
 124
 125     This deletes a driver "instance".  The device is de-registered
 126     with Card Services.  If it has been released, all local data
 127     structures are freed.  Otherwise, the structures will be freed
 128     when the device is released.
 129
 130 ======================================================================*/
 131
 132 static void ide_detach(struct pcmcia_device *link)
 133 {
 134     ide_info_t *info = link->priv;
 135     ide_hwif_t *hwif = info->host->ports[0];
 136     unsigned long data_addr, ctl_addr;
 137
 138     DEBUG(0, "ide_detach(0x%p)\n", link);
 139
 140     data_addr = hwif->io_ports.data_addr;
 141     ctl_addr  = hwif->io_ports.ctl_addr;
 142
 143     ide_release(link);
 144
 145     release_region(ctl_addr, 1);
 146     release_region(data_addr, 8);
 147
 148     kfree(info);
 149 } /* ide_detach */
 150
 151 static const struct ide_port_ops idecs_port_ops = {
 152         .quirkproc              = ide_undecoded_slave,
 153 };
 154
 155 static const struct ide_port_info idecs_port_info = {
 156         .port_ops               = &idecs_port_ops,
 157         .host_flags             = IDE_HFLAG_NO_DMA,
 158 };
 159
 160 static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
 161                                 unsigned long irq, struct pcmcia_device *handle)
 162 {
 163     struct ide_host *host;
 164     ide_hwif_t *hwif;
 165     int i, rc;
 166     hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
 167
 168     if (!request_region(io, 8, DRV_NAME)) {
 169         printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
 170                         DRV_NAME, io, io + 7);
 171         return NULL;
 172     }
 173
 174     if (!request_region(ctl, 1, DRV_NAME)) {
 175         printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
 176                         DRV_NAME, ctl);
 177         release_region(io, 8);
 178         return NULL;
 179     }
 180
 181     memset(&hw, 0, sizeof(hw));
 182     ide_std_init_ports(&hw, io, ctl);
 183     hw.irq = irq;
 184     hw.chipset = ide_pci;
 185     hw.dev = &handle->dev;
 186
 187     rc = ide_host_add(&idecs_port_info, hws, &host);
 188     if (rc)
 189         goto out_release;
 190
 191     hwif = host->ports[0];
 192
 193     if (hwif->present)
 194         return host;
 195
 196     /* retry registration in case device is still spinning up */
 197     for (i = 0; i < 10; i++) {
 198         msleep(100);
 199         ide_port_scan(hwif);
 200         if (hwif->present)
 201             return host;
 202     }
 203
 204     return host;
 205
 206 out_release:
 207     release_region(ctl, 1);
 208     release_region(io, 8);
 209     return NULL;
 210 }
 211
 212 /*======================================================================
 213
 214     ide_config() is scheduled to run after a CARD_INSERTION event
 215     is received, to configure the PCMCIA socket, and to make the
 216     ide device available to the system.
 217
 218 ======================================================================*/
 219
 220 #define CS_CHECK(fn, ret) \
 221 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 222
 223 static int ide_config(struct pcmcia_device *link)
 224 {
 225     ide_info_t *info = link->priv;
 226     tuple_t tuple;
 227     struct {
 228         u_short         buf[128];
 229         cisparse_t      parse;
 230         config_info_t   conf;
 231         cistpl_cftable_entry_t dflt;
 232     } *stk = NULL;
 233     cistpl_cftable_entry_t *cfg;
 234     int pass, last_ret = 0, last_fn = 0, is_kme = 0;
 235     unsigned long io_base, ctl_base;
 236     struct ide_host *host;
 237
 238     DEBUG(0, "ide_config(0x%p)\n", link);
 239
 240     stk = kzalloc(sizeof(*stk), GFP_KERNEL);
 241     if (!stk) goto err_mem;
 242     cfg = &stk->parse.cftable_entry;
 243
 244     tuple.TupleData = (cisdata_t *)&stk->buf;
 245     tuple.TupleOffset = 0;
 246     tuple.TupleDataMax = 255;
 247     tuple.Attributes = 0;
 248
 249     is_kme = ((link->manf_id == MANFID_KME) &&
 250               ((link->card_id == PRODID_KME_KXLC005_A) ||
 251                (link->card_id == PRODID_KME_KXLC005_B)));
 252
 253     /* Not sure if this is right... look up the current Vcc */
 254     CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &stk->conf));
 255
 256     pass = io_base = ctl_base = 0;
 257     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 258     tuple.Attributes = 0;
 259     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 260     while (1) {
 261         if (pcmcia_get_tuple_data(link, &tuple) != 0) goto next_entry;
 262         if (pcmcia_parse_tuple(link, &tuple, &stk->parse) != 0) goto next_entry;
 263
 264         /* Check for matching Vcc, unless we're desperate */
 265         if (!pass) {
 266             if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 267                 if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
 268                     goto next_entry;
 269             } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
 270                 if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
 271                     goto next_entry;
 272             }
 273         }
 274
 275         if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 276             link->conf.Vpp =
 277                 cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 278         else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
 279             link->conf.Vpp =
 280                 stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
 281
 282         if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
 283             cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
 284             link->conf.ConfigIndex = cfg->index;
 285             link->io.BasePort1 = io->win[0].base;
 286             link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
 287             if (!(io->flags & CISTPL_IO_16BIT))
 288                 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 289             if (io->nwin == 2) {
 290                 link->io.NumPorts1 = 8;
 291                 link->io.BasePort2 = io->win[1].base;
 292                 link->io.NumPorts2 = (is_kme) ? 2 : 1;
 293                 if (pcmcia_request_io(link, &link->io) != 0)
 294                         goto next_entry;
 295                 io_base = link->io.BasePort1;
 296                 ctl_base = link->io.BasePort2;
 297             } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
 298                 link->io.NumPorts1 = io->win[0].len;
 299                 link->io.NumPorts2 = 0;
 300                 if (pcmcia_request_io(link, &link->io) != 0)
 301                         goto next_entry;
 302                 io_base = link->io.BasePort1;
 303                 ctl_base = link->io.BasePort1 + 0x0e;
 304             } else goto next_entry;
 305             /* If we've got this far, we're done */
 306             break;
 307         }
 308
 309     next_entry:
 310         if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 311             memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
 312         if (pass) {
 313             CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
 314         } else if (pcmcia_get_next_tuple(link, &tuple) != 0) {
 315             CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 316             memset(&stk->dflt, 0, sizeof(stk->dflt));
 317             pass++;
 318         }
 319     }
 320
 321     CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
 322     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 323
 324     /* disable drive interrupts during IDE probe */
 325     outb(0x02, ctl_base);
 326
 327     /* special setup for KXLC005 card */
 328     if (is_kme)
 329         outb(0x81, ctl_base+1);
 330
 331      host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link);
 332      if (host == NULL && link->io.NumPorts1 == 0x20) {
 333             outb(0x02, ctl_base + 0x10);
 334             host = idecs_register(io_base + 0x10, ctl_base + 0x10,
 335                                   link->irq.AssignedIRQ, link);
 336     }
 337
 338     if (host == NULL)
 339         goto failed;
 340
 341     info->ndev = 1;
 342     sprintf(info->node.dev_name, "hd%c", 'a' + host->ports[0]->index * 2);
 343     info->node.major = host->ports[0]->major;
 344     info->node.minor = 0;
 345     info->host = host;
 346     link->dev_node = &info->node;
 347     printk(KERN_INFO "ide-cs: %s: Vpp = %d.%d\n",
 348            info->node.dev_name, link->conf.Vpp / 10, link->conf.Vpp % 10);
 349
 350     kfree(stk);
 351     return 0;
 352
 353 err_mem:
 354     printk(KERN_NOTICE "ide-cs: ide_config failed memory allocation\n");
 355     goto failed;
 356
 357 cs_failed:
 358     cs_error(link, last_fn, last_ret);
 359 failed:
 360     kfree(stk);
 361     ide_release(link);
 362     return -ENODEV;
 363 } /* ide_config */
 364
 365 /*======================================================================
 366
 367     After a card is removed, ide_release() will unregister the net
 368     device, and release the PCMCIA configuration.  If the device is
 369     still open, this will be postponed until it is closed.
 370
 371 ======================================================================*/
 372
 373 static void ide_release(struct pcmcia_device *link)
 374 {
 375     ide_info_t *info = link->priv;
 376     struct ide_host *host = info->host;
 377
 378     DEBUG(0, "ide_release(0x%p)\n", link);
 379
 380     if (info->ndev)
 381         /* FIXME: if this fails we need to queue the cleanup somehow
 382            -- need to investigate the required PCMCIA magic */
 383         ide_host_remove(host);
 384
 385     info->ndev = 0;
 386
 387     pcmcia_disable_device(link);
 388 } /* ide_release */
 389
 390
 391 /*======================================================================
 392
 393     The card status event handler.  Mostly, this schedules other
 394     stuff to run after an event is received.  A CARD_REMOVAL event
 395     also sets some flags to discourage the ide drivers from
 396     talking to the ports.
 397
 398 ======================================================================*/
 399
 400 static struct pcmcia_device_id ide_ids[] = {
 401         PCMCIA_DEVICE_FUNC_ID(4),
 402         PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000),        /* Corsair */
 403         PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000),        /* Hitachi */
 404         PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),        /* I-O Data CFA */
 405         PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),        /* Mitsubishi CFA */
 406         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
 407         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
 408         PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),        /* SanDisk CFA */
 409         PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000),        /* Kingston */
 410         PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620),        /* TI emulated */
 411         PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),        /* Toshiba */
 412         PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
 413         PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000),        /* Samsung */
 414         PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000),        /* Hitachi */
 415         PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
 416         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100),        /* Viking CFA */
 417         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200),        /* Lexar, Viking CFA */
 418         PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
 419         PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
 420         PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
 421         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
 422         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
 423         PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
 424         PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
 425         PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
 426         PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
 427         PCMCIA_DEVICE_PROD_ID12("EXP   ", "CD-ROM", 0x0a5c52fd, 0x66536591),
 428         PCMCIA_DEVICE_PROD_ID12("EXP   ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
 429         PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
 430         PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
 431         PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
 432         PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
 433         PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 434         PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
 435         PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 436         PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
 437         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
 438         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
 439         PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2      ", 0xe37be2b5, 0x8671043b),
 440         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
 441         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
 442         PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
 443         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
 444         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
 445         PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
 446         PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
 447         PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
 448         PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
 449         PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
 450         PCMCIA_DEVICE_PROD_ID1("TRANSCEND    512M   ", 0xd0909443),
 451         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
 452         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 453         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 454         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
 455         PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 456         PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
 457         PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
 458         PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
 459         PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
 460         PCMCIA_DEVICE_NULL,
 461 };
 462 MODULE_DEVICE_TABLE(pcmcia, ide_ids);
 463
 464 static struct pcmcia_driver ide_cs_driver = {
 465         .owner          = THIS_MODULE,
 466         .drv            = {
 467                 .name   = "ide-cs",
 468         },
 469         .probe          = ide_probe,
 470         .remove         = ide_detach,
 471         .id_table       = ide_ids,
 472 };
 473
 474 static int __init init_ide_cs(void)
 475 {
 476         return pcmcia_register_driver(&ide_cs_driver);
 477 }
 478
 479 static void __exit exit_ide_cs(void)
 480 {
 481         pcmcia_unregister_driver(&ide_cs_driver);
 482 }
 483
 484 late_initcall(init_ide_cs);
 485 module_exit(exit_ide_cs);