drivers/mtd/maps/pcmciamtd.c

   1 /*
   2  * $Id: pcmciamtd.c,v 1.55 2005/11/07 11:14:28 gleixner Exp $
   3  *
   4  * pcmciamtd.c - MTD driver for PCMCIA flash memory cards
   5  *
   6  * Author: Simon Evans <spse@secret.org.uk>
   7  *
   8  * Copyright (C) 2002 Simon Evans
   9  *
  10  * Licence: GPL
  11  *
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/slab.h>
  16 #include <linux/timer.h>
  17 #include <linux/init.h>
  18 #include <asm/io.h>
  19 #include <asm/system.h>
  20
  21 #include <pcmcia/cs_types.h>
  22 #include <pcmcia/cs.h>
  23 #include <pcmcia/cistpl.h>
  24 #include <pcmcia/ds.h>
  25
  26 #include <linux/mtd/map.h>
  27 #include <linux/mtd/mtd.h>
  28
  29 #ifdef CONFIG_MTD_DEBUG
  30 static int debug = CONFIG_MTD_DEBUG_VERBOSE;
  31 module_param(debug, int, 0);
  32 MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy");
  33 #undef DEBUG
  34 #define DEBUG(n, format, arg...) \
  35         if (n <= debug) {        \
  36                 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \
  37         }
  38
  39 #else
  40 #undef DEBUG
  41 #define DEBUG(n, arg...)
  42 static const int debug = 0;
  43 #endif
  44
  45 #define err(format, arg...) printk(KERN_ERR "pcmciamtd: " format "\n" , ## arg)
  46 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg)
  47 #define warn(format, arg...) printk(KERN_WARNING "pcmciamtd: " format "\n" , ## arg)
  48
  49
  50 #define DRIVER_DESC     "PCMCIA Flash memory card driver"
  51 #define DRIVER_VERSION  "$Revision: 1.55 $"
  52
  53 /* Size of the PCMCIA address space: 26 bits = 64 MB */
  54 #define MAX_PCMCIA_ADDR 0x4000000
  55
  56 struct pcmciamtd_dev {
  57         struct pcmcia_device    *p_dev;
  58         dev_node_t      node;           /* device node */
  59         caddr_t         win_base;       /* ioremapped address of PCMCIA window */
  60         unsigned int    win_size;       /* size of window */
  61         unsigned int    offset;         /* offset into card the window currently points at */
  62         struct map_info pcmcia_map;
  63         struct mtd_info *mtd_info;
  64         int             vpp;
  65         char            mtd_name[sizeof(struct cistpl_vers_1_t)];
  66 };
  67
  68
  69 /* Module parameters */
  70
  71 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */
  72 static int bankwidth = 2;
  73
  74 /* Speed of memory accesses, in ns */
  75 static int mem_speed;
  76
  77 /* Force the size of an SRAM card */
  78 static int force_size;
  79
  80 /* Force Vpp */
  81 static int vpp;
  82
  83 /* Set Vpp */
  84 static int setvpp;
  85
  86 /* Force card to be treated as FLASH, ROM or RAM */
  87 static int mem_type;
  88
  89 MODULE_LICENSE("GPL");
  90 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
  91 MODULE_DESCRIPTION(DRIVER_DESC);
  92 module_param(bankwidth, int, 0);
  93 MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)");
  94 module_param(mem_speed, int, 0);
  95 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns");
  96 module_param(force_size, int, 0);
  97 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)");
  98 module_param(setvpp, int, 0);
  99 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)");
 100 module_param(vpp, int, 0);
 101 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)");
 102 module_param(mem_type, int, 0);
 103 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)");
 104
 105
 106 /* read/write{8,16} copy_{from,to} routines with window remapping to access whole card */
 107 static caddr_t remap_window(struct map_info *map, unsigned long to)
 108 {
 109         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 110         window_handle_t win = (window_handle_t)map->map_priv_2;
 111         memreq_t mrq;
 112         int ret;
 113
 114         if (!pcmcia_dev_present(dev->p_dev)) {
 115                 DEBUG(1, "device removed");
 116                 return 0;
 117         }
 118
 119         mrq.CardOffset = to & ~(dev->win_size-1);
 120         if(mrq.CardOffset != dev->offset) {
 121                 DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x",
 122                       dev->offset, mrq.CardOffset);
 123                 mrq.Page = 0;
 124                 if( (ret = pcmcia_map_mem_page(win, &mrq)) != CS_SUCCESS) {
 125                         cs_error(dev->p_dev, MapMemPage, ret);
 126                         return NULL;
 127                 }
 128                 dev->offset = mrq.CardOffset;
 129         }
 130         return dev->win_base + (to & (dev->win_size-1));
 131 }
 132
 133
 134 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs)
 135 {
 136         caddr_t addr;
 137         map_word d = {{0}};
 138
 139         addr = remap_window(map, ofs);
 140         if(!addr)
 141                 return d;
 142
 143         d.x[0] = readb(addr);
 144         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, addr, d.x[0]);
 145         return d;
 146 }
 147
 148
 149 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs)
 150 {
 151         caddr_t addr;
 152         map_word d = {{0}};
 153
 154         addr = remap_window(map, ofs);
 155         if(!addr)
 156                 return d;
 157
 158         d.x[0] = readw(addr);
 159         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, addr, d.x[0]);
 160         return d;
 161 }
 162
 163
 164 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len)
 165 {
 166         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 167         unsigned long win_size = dev->win_size;
 168
 169         DEBUG(3, "to = %p from = %lu len = %u", to, from, len);
 170         while(len) {
 171                 int toread = win_size - (from & (win_size-1));
 172                 caddr_t addr;
 173
 174                 if(toread > len)
 175                         toread = len;
 176
 177                 addr = remap_window(map, from);
 178                 if(!addr)
 179                         return;
 180
 181                 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread);
 182                 memcpy_fromio(to, addr, toread);
 183                 len -= toread;
 184                 to += toread;
 185                 from += toread;
 186         }
 187 }
 188
 189
 190 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr)
 191 {
 192         caddr_t addr = remap_window(map, adr);
 193
 194         if(!addr)
 195                 return;
 196
 197         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%02x", adr, addr, d.x[0]);
 198         writeb(d.x[0], addr);
 199 }
 200
 201
 202 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr)
 203 {
 204         caddr_t addr = remap_window(map, adr);
 205         if(!addr)
 206                 return;
 207
 208         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%04x", adr, addr, d.x[0]);
 209         writew(d.x[0], addr);
 210 }
 211
 212
 213 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len)
 214 {
 215         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 216         unsigned long win_size = dev->win_size;
 217
 218         DEBUG(3, "to = %lu from = %p len = %u", to, from, len);
 219         while(len) {
 220                 int towrite = win_size - (to & (win_size-1));
 221                 caddr_t addr;
 222
 223                 if(towrite > len)
 224                         towrite = len;
 225
 226                 addr = remap_window(map, to);
 227                 if(!addr)
 228                         return;
 229
 230                 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite);
 231                 memcpy_toio(addr, from, towrite);
 232                 len -= towrite;
 233                 to += towrite;
 234                 from += towrite;
 235         }
 236 }
 237
 238
 239 /* read/write{8,16} copy_{from,to} routines with direct access */
 240
 241 #define DEV_REMOVED(x)  (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev)))
 242
 243 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs)
 244 {
 245         caddr_t win_base = (caddr_t)map->map_priv_2;
 246         map_word d = {{0}};
 247
 248         if(DEV_REMOVED(map))
 249                 return d;
 250
 251         d.x[0] = readb(win_base + ofs);
 252         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, win_base + ofs, d.x[0]);
 253         return d;
 254 }
 255
 256
 257 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs)
 258 {
 259         caddr_t win_base = (caddr_t)map->map_priv_2;
 260         map_word d = {{0}};
 261
 262         if(DEV_REMOVED(map))
 263                 return d;
 264
 265         d.x[0] = readw(win_base + ofs);
 266         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, win_base + ofs, d.x[0]);
 267         return d;
 268 }
 269
 270
 271 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
 272 {
 273         caddr_t win_base = (caddr_t)map->map_priv_2;
 274
 275         if(DEV_REMOVED(map))
 276                 return;
 277
 278         DEBUG(3, "to = %p from = %lu len = %u", to, from, len);
 279         memcpy_fromio(to, win_base + from, len);
 280 }
 281
 282
 283 static void pcmcia_write8(struct map_info *map, u8 d, unsigned long adr)
 284 {
 285         caddr_t win_base = (caddr_t)map->map_priv_2;
 286
 287         if(DEV_REMOVED(map))
 288                 return;
 289
 290         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%02x", adr, win_base + adr, d);
 291         writeb(d, win_base + adr);
 292 }
 293
 294
 295 static void pcmcia_write16(struct map_info *map, u16 d, unsigned long adr)
 296 {
 297         caddr_t win_base = (caddr_t)map->map_priv_2;
 298
 299         if(DEV_REMOVED(map))
 300                 return;
 301
 302         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%04x", adr, win_base + adr, d);
 303         writew(d, win_base + adr);
 304 }
 305
 306
 307 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
 308 {
 309         caddr_t win_base = (caddr_t)map->map_priv_2;
 310
 311         if(DEV_REMOVED(map))
 312                 return;
 313
 314         DEBUG(3, "to = %lu from = %p len = %u", to, from, len);
 315         memcpy_toio(win_base + to, from, len);
 316 }
 317
 318
 319 static void pcmciamtd_set_vpp(struct map_info *map, int on)
 320 {
 321         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 322         struct pcmcia_device *link = dev->p_dev;
 323         modconf_t mod;
 324         int ret;
 325
 326         mod.Attributes = CONF_VPP1_CHANGE_VALID | CONF_VPP2_CHANGE_VALID;
 327         mod.Vcc = 0;
 328         mod.Vpp1 = mod.Vpp2 = on ? dev->vpp : 0;
 329
 330         DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp);
 331         ret = pcmcia_modify_configuration(link, &mod);
 332         if(ret != CS_SUCCESS) {
 333                 cs_error(link, ModifyConfiguration, ret);
 334         }
 335 }
 336
 337
 338 /* After a card is removed, pcmciamtd_release() will unregister the
 339  * device, and release the PCMCIA configuration.  If the device is
 340  * still open, this will be postponed until it is closed.
 341  */
 342
 343 static void pcmciamtd_release(struct pcmcia_device *link)
 344 {
 345         struct pcmciamtd_dev *dev = link->priv;
 346
 347         DEBUG(3, "link = 0x%p", link);
 348
 349         if (link->win) {
 350                 if(dev->win_base) {
 351                         iounmap(dev->win_base);
 352                         dev->win_base = NULL;
 353                 }
 354                 pcmcia_release_window(link->win);
 355         }
 356         pcmcia_disable_device(link);
 357 }
 358
 359
 360 static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *link, int *new_name)
 361 {
 362         int rc;
 363         tuple_t tuple;
 364         cisparse_t parse;
 365         u_char buf[64];
 366
 367         tuple.Attributes = 0;
 368         tuple.TupleData = (cisdata_t *)buf;
 369         tuple.TupleDataMax = sizeof(buf);
 370         tuple.TupleOffset = 0;
 371         tuple.DesiredTuple = RETURN_FIRST_TUPLE;
 372
 373         rc = pcmcia_get_first_tuple(link, &tuple);
 374         while(rc == CS_SUCCESS) {
 375                 rc = pcmcia_get_tuple_data(link, &tuple);
 376                 if(rc != CS_SUCCESS) {
 377                         cs_error(link, GetTupleData, rc);
 378                         break;
 379                 }
 380                 rc = pcmcia_parse_tuple(link, &tuple, &parse);
 381                 if(rc != CS_SUCCESS) {
 382                         cs_error(link, ParseTuple, rc);
 383                         break;
 384                 }
 385
 386                 switch(tuple.TupleCode) {
 387                 case  CISTPL_FORMAT: {
 388                         cistpl_format_t *t = &parse.format;
 389                         (void)t; /* Shut up, gcc */
 390                         DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u",
 391                               t->type, t->edc, t->offset, t->length);
 392                         break;
 393
 394                 }
 395
 396                 case CISTPL_DEVICE: {
 397                         cistpl_device_t *t = &parse.device;
 398                         int i;
 399                         DEBUG(2, "Common memory:");
 400                         dev->pcmcia_map.size = t->dev[0].size;
 401                         for(i = 0; i < t->ndev; i++) {
 402                                 DEBUG(2, "Region %d, type = %u", i, t->dev[i].type);
 403                                 DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp);
 404                                 DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed);
 405                                 DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size);
 406                         }
 407                         break;
 408                 }
 409
 410                 case CISTPL_VERS_1: {
 411                         cistpl_vers_1_t *t = &parse.version_1;
 412                         int i;
 413                         if(t->ns) {
 414                                 dev->mtd_name[0] = '\0';
 415                                 for(i = 0; i < t->ns; i++) {
 416                                         if(i)
 417                                                 strcat(dev->mtd_name, " ");
 418                                         strcat(dev->mtd_name, t->str+t->ofs[i]);
 419                                 }
 420                         }
 421                         DEBUG(2, "Found name: %s", dev->mtd_name);
 422                         break;
 423                 }
 424
 425                 case CISTPL_JEDEC_C: {
 426                         cistpl_jedec_t *t = &parse.jedec;
 427                         int i;
 428                         for(i = 0; i < t->nid; i++) {
 429                                 DEBUG(2, "JEDEC: 0x%02x 0x%02x", t->id[i].mfr, t->id[i].info);
 430                         }
 431                         break;
 432                 }
 433
 434                 case CISTPL_DEVICE_GEO: {
 435                         cistpl_device_geo_t *t = &parse.device_geo;
 436                         int i;
 437                         dev->pcmcia_map.bankwidth = t->geo[0].buswidth;
 438                         for(i = 0; i < t->ngeo; i++) {
 439                                 DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth);
 440                                 DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block);
 441                                 DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block);
 442                                 DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block);
 443                                 DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition);
 444                                 DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave);
 445                         }
 446                         break;
 447                 }
 448
 449                 default:
 450                         DEBUG(2, "Unknown tuple code %d", tuple.TupleCode);
 451                 }
 452
 453                 rc = pcmcia_get_next_tuple(link, &tuple);
 454         }
 455         if(!dev->pcmcia_map.size)
 456                 dev->pcmcia_map.size = MAX_PCMCIA_ADDR;
 457
 458         if(!dev->pcmcia_map.bankwidth)
 459                 dev->pcmcia_map.bankwidth = 2;
 460
 461         if(force_size) {
 462                 dev->pcmcia_map.size = force_size << 20;
 463                 DEBUG(2, "size forced to %dM", force_size);
 464         }
 465
 466         if(bankwidth) {
 467                 dev->pcmcia_map.bankwidth = bankwidth;
 468                 DEBUG(2, "bankwidth forced to %d", bankwidth);
 469         }
 470
 471         dev->pcmcia_map.name = dev->mtd_name;
 472         if(!dev->mtd_name[0]) {
 473                 strcpy(dev->mtd_name, "PCMCIA Memory card");
 474                 *new_name = 1;
 475         }
 476
 477         DEBUG(1, "Device: Size: %lu Width:%d Name: %s",
 478               dev->pcmcia_map.size, dev->pcmcia_map.bankwidth << 3, dev->mtd_name);
 479 }
 480
 481
 482 /* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event
 483  * is received, to configure the PCMCIA socket, and to make the
 484  * MTD device available to the system.
 485  */
 486
 487 #define CS_CHECK(fn, ret) \
 488 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 489
 490 static int pcmciamtd_config(struct pcmcia_device *link)
 491 {
 492         struct pcmciamtd_dev *dev = link->priv;
 493         struct mtd_info *mtd = NULL;
 494         cs_status_t status;
 495         win_req_t req;
 496         int last_ret = 0, last_fn = 0;
 497         int ret;
 498         int i;
 499         config_info_t t;
 500         static char *probes[] = { "jedec_probe", "cfi_probe" };
 501         cisinfo_t cisinfo;
 502         int new_name = 0;
 503
 504         DEBUG(3, "link=0x%p", link);
 505
 506         DEBUG(2, "Validating CIS");
 507         ret = pcmcia_validate_cis(link, &cisinfo);
 508         if(ret != CS_SUCCESS) {
 509                 cs_error(link, GetTupleData, ret);
 510         } else {
 511                 DEBUG(2, "ValidateCIS found %d chains", cisinfo.Chains);
 512         }
 513
 514         card_settings(dev, link, &new_name);
 515
 516         dev->pcmcia_map.phys = NO_XIP;
 517         dev->pcmcia_map.copy_from = pcmcia_copy_from_remap;
 518         dev->pcmcia_map.copy_to = pcmcia_copy_to_remap;
 519         if (dev->pcmcia_map.bankwidth == 1) {
 520                 dev->pcmcia_map.read = pcmcia_read8_remap;
 521                 dev->pcmcia_map.write = pcmcia_write8_remap;
 522         } else {
 523                 dev->pcmcia_map.read = pcmcia_read16_remap;
 524                 dev->pcmcia_map.write = pcmcia_write16_remap;
 525         }
 526         if(setvpp == 1)
 527                 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
 528
 529         /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum
 530            that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the
 531            whole card - otherwise we try smaller windows until we succeed */
 532
 533         req.Attributes =  WIN_MEMORY_TYPE_CM | WIN_ENABLE;
 534         req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16;
 535         req.Base = 0;
 536         req.AccessSpeed = mem_speed;
 537         link->win = (window_handle_t)link;
 538         req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR;
 539         dev->win_size = 0;
 540
 541         do {
 542                 int ret;
 543                 DEBUG(2, "requesting window with size = %dKiB memspeed = %d",
 544                       req.Size >> 10, req.AccessSpeed);
 545                 ret = pcmcia_request_window(&link, &req, &link->win);
 546                 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size);
 547                 if(ret) {
 548                         req.Size >>= 1;
 549                 } else {
 550                         DEBUG(2, "Got window of size %dKiB", req.Size >> 10);
 551                         dev->win_size = req.Size;
 552                         break;
 553                 }
 554         } while(req.Size >= 0x1000);
 555
 556         DEBUG(2, "dev->win_size = %d", dev->win_size);
 557
 558         if(!dev->win_size) {
 559                 err("Cant allocate memory window");
 560                 pcmciamtd_release(link);
 561                 return -ENODEV;
 562         }
 563         DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10);
 564
 565         /* Get write protect status */
 566         CS_CHECK(GetStatus, pcmcia_get_status(link, &status));
 567         DEBUG(2, "status value: 0x%x window handle = 0x%8.8lx",
 568               status.CardState, (unsigned long)link->win);
 569         dev->win_base = ioremap(req.Base, req.Size);
 570         if(!dev->win_base) {
 571                 err("ioremap(%lu, %u) failed", req.Base, req.Size);
 572                 pcmciamtd_release(link);
 573                 return -ENODEV;
 574         }
 575         DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x",
 576               dev, req.Base, dev->win_base, req.Size);
 577
 578         dev->offset = 0;
 579         dev->pcmcia_map.map_priv_1 = (unsigned long)dev;
 580         dev->pcmcia_map.map_priv_2 = (unsigned long)link->win;
 581
 582         DEBUG(2, "Getting configuration");
 583         CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &t));
 584         DEBUG(2, "Vcc = %d Vpp1 = %d Vpp2 = %d", t.Vcc, t.Vpp1, t.Vpp2);
 585         dev->vpp = (vpp) ? vpp : t.Vpp1;
 586         link->conf.Attributes = 0;
 587         if(setvpp == 2) {
 588                 link->conf.Vpp = dev->vpp;
 589         } else {
 590                 link->conf.Vpp = 0;
 591         }
 592
 593         link->conf.IntType = INT_MEMORY;
 594         link->conf.ConfigBase = t.ConfigBase;
 595         link->conf.Status = t.Status;
 596         link->conf.Pin = t.Pin;
 597         link->conf.Copy = t.Copy;
 598         link->conf.ExtStatus = t.ExtStatus;
 599         link->conf.ConfigIndex = 0;
 600         link->conf.Present = t.Present;
 601         DEBUG(2, "Setting Configuration");
 602         ret = pcmcia_request_configuration(link, &link->conf);
 603         if(ret != CS_SUCCESS) {
 604                 cs_error(link, RequestConfiguration, ret);
 605                 return -ENODEV;
 606         }
 607
 608         if(mem_type == 1) {
 609                 mtd = do_map_probe("map_ram", &dev->pcmcia_map);
 610         } else if(mem_type == 2) {
 611                 mtd = do_map_probe("map_rom", &dev->pcmcia_map);
 612         } else {
 613                 for(i = 0; i < sizeof(probes) / sizeof(char *); i++) {
 614                         DEBUG(1, "Trying %s", probes[i]);
 615                         mtd = do_map_probe(probes[i], &dev->pcmcia_map);
 616                         if(mtd)
 617                                 break;
 618
 619                         DEBUG(1, "FAILED: %s", probes[i]);
 620                 }
 621         }
 622
 623         if(!mtd) {
 624                 DEBUG(1, "Cant find an MTD");
 625                 pcmciamtd_release(link);
 626                 return -ENODEV;
 627         }
 628
 629         dev->mtd_info = mtd;
 630         mtd->owner = THIS_MODULE;
 631
 632         if(new_name) {
 633                 int size = 0;
 634                 char unit = ' ';
 635                 /* Since we are using a default name, make it better by adding in the
 636                    size */
 637                 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */
 638                         size = mtd->size >> 10;
 639                         unit = 'K';
 640                 } else {
 641                         size = mtd->size >> 20;
 642                         unit = 'M';
 643                 }
 644                 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card");
 645         }
 646
 647         /* If the memory found is fits completely into the mapped PCMCIA window,
 648            use the faster non-remapping read/write functions */
 649         if(mtd->size <= dev->win_size) {
 650                 DEBUG(1, "Using non remapping memory functions");
 651                 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base;
 652                 if (dev->pcmcia_map.bankwidth == 1) {
 653                         dev->pcmcia_map.read = pcmcia_read8;
 654                         dev->pcmcia_map.write = pcmcia_write8;
 655                 } else {
 656                         dev->pcmcia_map.read = pcmcia_read16;
 657                         dev->pcmcia_map.write = pcmcia_write16;
 658                 }
 659                 dev->pcmcia_map.copy_from = pcmcia_copy_from;
 660                 dev->pcmcia_map.copy_to = pcmcia_copy_to;
 661         }
 662
 663         if(add_mtd_device(mtd)) {
 664                 map_destroy(mtd);
 665                 dev->mtd_info = NULL;
 666                 err("Couldnt register MTD device");
 667                 pcmciamtd_release(link);
 668                 return -ENODEV;
 669         }
 670         snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index);
 671         info("mtd%d: %s", mtd->index, mtd->name);
 672         link->dev_node = &dev->node;
 673         return 0;
 674
 675  cs_failed:
 676         cs_error(link, last_fn, last_ret);
 677         err("CS Error, exiting");
 678         pcmciamtd_release(link);
 679         return -ENODEV;
 680 }
 681
 682
 683 static int pcmciamtd_suspend(struct pcmcia_device *dev)
 684 {
 685         DEBUG(2, "EVENT_PM_RESUME");
 686
 687         /* get_lock(link); */
 688
 689         return 0;
 690 }
 691
 692 static int pcmciamtd_resume(struct pcmcia_device *dev)
 693 {
 694         DEBUG(2, "EVENT_PM_SUSPEND");
 695
 696         /* free_lock(link); */
 697
 698         return 0;
 699 }
 700
 701
 702 /* This deletes a driver "instance".  The device is de-registered
 703  * with Card Services.  If it has been released, all local data
 704  * structures are freed.  Otherwise, the structures will be freed
 705  * when the device is released.
 706  */
 707
 708 static void pcmciamtd_detach(struct pcmcia_device *link)
 709 {
 710         struct pcmciamtd_dev *dev = link->priv;
 711
 712         DEBUG(3, "link=0x%p", link);
 713
 714         if(dev->mtd_info) {
 715                 del_mtd_device(dev->mtd_info);
 716                 info("mtd%d: Removed", dev->mtd_info->index);
 717         }
 718
 719         pcmciamtd_release(link);
 720 }
 721
 722
 723 /* pcmciamtd_attach() creates an "instance" of the driver, allocating
 724  * local data structures for one device.  The device is registered
 725  * with Card Services.
 726  */
 727
 728 static int pcmciamtd_probe(struct pcmcia_device *link)
 729 {
 730         struct pcmciamtd_dev *dev;
 731
 732         /* Create new memory card device */
 733         dev = kmalloc(sizeof(*dev), GFP_KERNEL);
 734         if (!dev) return -ENOMEM;
 735         DEBUG(1, "dev=0x%p", dev);
 736
 737         memset(dev, 0, sizeof(*dev));
 738         dev->p_dev = link;
 739         link->priv = dev;
 740
 741         link->conf.Attributes = 0;
 742         link->conf.IntType = INT_MEMORY;
 743
 744         return pcmciamtd_config(link);
 745 }
 746
 747 static struct pcmcia_device_id pcmciamtd_ids[] = {
 748         PCMCIA_DEVICE_FUNC_ID(1),
 749         PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21),
 750         PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21),
 751         PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a),
 752         PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e),
 753         PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf),
 754         PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb),
 755         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c),
 756         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda),
 757         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0),
 758         PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8),
 759         PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c),
 760         PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0),
 761         PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b),
 762         PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad),
 763         PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca),
 764         PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944),
 765         /* the following was commented out in pcmcia-cs-3.2.7 */
 766         /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */
 767 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS
 768         { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, },
 769 #endif
 770         PCMCIA_DEVICE_NULL
 771 };
 772 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids);
 773
 774 static struct pcmcia_driver pcmciamtd_driver = {
 775         .drv            = {
 776                 .name   = "pcmciamtd"
 777         },
 778         .probe          = pcmciamtd_probe,
 779         .remove         = pcmciamtd_detach,
 780         .owner          = THIS_MODULE,
 781         .id_table       = pcmciamtd_ids,
 782         .suspend        = pcmciamtd_suspend,
 783         .resume         = pcmciamtd_resume,
 784 };
 785
 786
 787 static int __init init_pcmciamtd(void)
 788 {
 789         info(DRIVER_DESC " " DRIVER_VERSION);
 790
 791         if(bankwidth && bankwidth != 1 && bankwidth != 2) {
 792                 info("bad bankwidth (%d), using default", bankwidth);
 793                 bankwidth = 2;
 794         }
 795         if(force_size && (force_size < 1 || force_size > 64)) {
 796                 info("bad force_size (%d), using default", force_size);
 797                 force_size = 0;
 798         }
 799         if(mem_type && mem_type != 1 && mem_type != 2) {
 800                 info("bad mem_type (%d), using default", mem_type);
 801                 mem_type = 0;
 802         }
 803         return pcmcia_register_driver(&pcmciamtd_driver);
 804 }
 805
 806
 807 static void __exit exit_pcmciamtd(void)
 808 {
 809         DEBUG(1, DRIVER_DESC " unloading");
 810         pcmcia_unregister_driver(&pcmciamtd_driver);
 811 }
 812
 813 module_init(init_pcmciamtd);
 814 module_exit(exit_pcmciamtd);