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", __func__ , ## 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 int new_name = 0; 502 503 DEBUG(3, "link=0x%p", link); 504 505 DEBUG(2, "Validating CIS"); 506 ret = pcmcia_validate_cis(link, NULL); 507 if(ret != CS_SUCCESS) { 508 cs_error(link, GetTupleData, ret); 509 } 510 511 card_settings(dev, link, &new_name); 512 513 dev->pcmcia_map.phys = NO_XIP; 514 dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; 515 dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; 516 if (dev->pcmcia_map.bankwidth == 1) { 517 dev->pcmcia_map.read = pcmcia_read8_remap; 518 dev->pcmcia_map.write = pcmcia_write8_remap; 519 } else { 520 dev->pcmcia_map.read = pcmcia_read16_remap; 521 dev->pcmcia_map.write = pcmcia_write16_remap; 522 } 523 if(setvpp == 1) 524 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; 525 526 /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum 527 that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the 528 whole card - otherwise we try smaller windows until we succeed */ 529 530 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE; 531 req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; 532 req.Base = 0; 533 req.AccessSpeed = mem_speed; 534 link->win = (window_handle_t)link; 535 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR; 536 dev->win_size = 0; 537 538 do { 539 int ret; 540 DEBUG(2, "requesting window with size = %dKiB memspeed = %d", 541 req.Size >> 10, req.AccessSpeed); 542 ret = pcmcia_request_window(&link, &req, &link->win); 543 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); 544 if(ret) { 545 req.Size >>= 1; 546 } else { 547 DEBUG(2, "Got window of size %dKiB", req.Size >> 10); 548 dev->win_size = req.Size; 549 break; 550 } 551 } while(req.Size >= 0x1000); 552 553 DEBUG(2, "dev->win_size = %d", dev->win_size); 554 555 if(!dev->win_size) { 556 err("Cant allocate memory window"); 557 pcmciamtd_release(link); 558 return -ENODEV; 559 } 560 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); 561 562 /* Get write protect status */ 563 DEBUG(2, "window handle = 0x%8.8lx", (unsigned long)link->win); 564 dev->win_base = ioremap(req.Base, req.Size); 565 if(!dev->win_base) { 566 err("ioremap(%lu, %u) failed", req.Base, req.Size); 567 pcmciamtd_release(link); 568 return -ENODEV; 569 } 570 DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x", 571 dev, req.Base, dev->win_base, req.Size); 572 573 dev->offset = 0; 574 dev->pcmcia_map.map_priv_1 = (unsigned long)dev; 575 dev->pcmcia_map.map_priv_2 = (unsigned long)link->win; 576 577 DEBUG(2, "Getting configuration"); 578 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &t)); 579 DEBUG(2, "Vcc = %d Vpp1 = %d Vpp2 = %d", t.Vcc, t.Vpp1, t.Vpp2); 580 dev->vpp = (vpp) ? vpp : t.Vpp1; 581 link->conf.Attributes = 0; 582 if(setvpp == 2) { 583 link->conf.Vpp = dev->vpp; 584 } else { 585 link->conf.Vpp = 0; 586 } 587 588 link->conf.IntType = INT_MEMORY; 589 link->conf.ConfigBase = t.ConfigBase; 590 link->conf.Status = t.Status; 591 link->conf.Pin = t.Pin; 592 link->conf.Copy = t.Copy; 593 link->conf.ExtStatus = t.ExtStatus; 594 link->conf.ConfigIndex = 0; 595 link->conf.Present = t.Present; 596 DEBUG(2, "Setting Configuration"); 597 ret = pcmcia_request_configuration(link, &link->conf); 598 if(ret != CS_SUCCESS) { 599 cs_error(link, RequestConfiguration, ret); 600 if (dev->win_base) { 601 iounmap(dev->win_base); 602 dev->win_base = NULL; 603 } 604 return -ENODEV; 605 } 606 607 if(mem_type == 1) { 608 mtd = do_map_probe("map_ram", &dev->pcmcia_map); 609 } else if(mem_type == 2) { 610 mtd = do_map_probe("map_rom", &dev->pcmcia_map); 611 } else { 612 for(i = 0; i < ARRAY_SIZE(probes); i++) { 613 DEBUG(1, "Trying %s", probes[i]); 614 mtd = do_map_probe(probes[i], &dev->pcmcia_map); 615 if(mtd) 616 break; 617 618 DEBUG(1, "FAILED: %s", probes[i]); 619 } 620 } 621 622 if(!mtd) { 623 DEBUG(1, "Cant find an MTD"); 624 pcmciamtd_release(link); 625 return -ENODEV; 626 } 627 628 dev->mtd_info = mtd; 629 mtd->owner = THIS_MODULE; 630 631 if(new_name) { 632 int size = 0; 633 char unit = ' '; 634 /* Since we are using a default name, make it better by adding in the 635 size */ 636 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ 637 size = mtd->size >> 10; 638 unit = 'K'; 639 } else { 640 size = mtd->size >> 20; 641 unit = 'M'; 642 } 643 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); 644 } 645 646 /* If the memory found is fits completely into the mapped PCMCIA window, 647 use the faster non-remapping read/write functions */ 648 if(mtd->size <= dev->win_size) { 649 DEBUG(1, "Using non remapping memory functions"); 650 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; 651 if (dev->pcmcia_map.bankwidth == 1) { 652 dev->pcmcia_map.read = pcmcia_read8; 653 dev->pcmcia_map.write = pcmcia_write8; 654 } else { 655 dev->pcmcia_map.read = pcmcia_read16; 656 dev->pcmcia_map.write = pcmcia_write16; 657 } 658 dev->pcmcia_map.copy_from = pcmcia_copy_from; 659 dev->pcmcia_map.copy_to = pcmcia_copy_to; 660 } 661 662 if(add_mtd_device(mtd)) { 663 map_destroy(mtd); 664 dev->mtd_info = NULL; 665 err("Couldnt register MTD device"); 666 pcmciamtd_release(link); 667 return -ENODEV; 668 } 669 snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index); 670 info("mtd%d: %s", mtd->index, mtd->name); 671 link->dev_node = &dev->node; 672 return 0; 673 674 cs_failed: 675 cs_error(link, last_fn, last_ret); 676 err("CS Error, exiting"); 677 pcmciamtd_release(link); 678 return -ENODEV; 679 } 680 681 682 static int pcmciamtd_suspend(struct pcmcia_device *dev) 683 { 684 DEBUG(2, "EVENT_PM_RESUME"); 685 686 /* get_lock(link); */ 687 688 return 0; 689 } 690 691 static int pcmciamtd_resume(struct pcmcia_device *dev) 692 { 693 DEBUG(2, "EVENT_PM_SUSPEND"); 694 695 /* free_lock(link); */ 696 697 return 0; 698 } 699 700 701 /* This deletes a driver "instance". The device is de-registered 702 * with Card Services. If it has been released, all local data 703 * structures are freed. Otherwise, the structures will be freed 704 * when the device is released. 705 */ 706 707 static void pcmciamtd_detach(struct pcmcia_device *link) 708 { 709 struct pcmciamtd_dev *dev = link->priv; 710 711 DEBUG(3, "link=0x%p", link); 712 713 if(dev->mtd_info) { 714 del_mtd_device(dev->mtd_info); 715 map_destroy(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 = kzalloc(sizeof(*dev), GFP_KERNEL); 734 if (!dev) return -ENOMEM; 735 DEBUG(1, "dev=0x%p", dev); 736 737 dev->p_dev = link; 738 link->priv = dev; 739 740 link->conf.Attributes = 0; 741 link->conf.IntType = INT_MEMORY; 742 743 return pcmciamtd_config(link); 744 } 745 746 static struct pcmcia_device_id pcmciamtd_ids[] = { 747 PCMCIA_DEVICE_FUNC_ID(1), 748 PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), 749 PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), 750 PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), 751 PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), 752 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), 753 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), 754 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), 755 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), 756 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), 757 PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), 758 PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), 759 PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), 760 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), 761 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), 762 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), 763 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), 764 /* the following was commented out in pcmcia-cs-3.2.7 */ 765 /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ 766 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS 767 { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, 768 #endif 769 PCMCIA_DEVICE_NULL 770 }; 771 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); 772 773 static struct pcmcia_driver pcmciamtd_driver = { 774 .drv = { 775 .name = "pcmciamtd" 776 }, 777 .probe = pcmciamtd_probe, 778 .remove = pcmciamtd_detach, 779 .owner = THIS_MODULE, 780 .id_table = pcmciamtd_ids, 781 .suspend = pcmciamtd_suspend, 782 .resume = pcmciamtd_resume, 783 }; 784 785 786 static int __init init_pcmciamtd(void) 787 { 788 info(DRIVER_DESC " " DRIVER_VERSION); 789 790 if(bankwidth && bankwidth != 1 && bankwidth != 2) { 791 info("bad bankwidth (%d), using default", bankwidth); 792 bankwidth = 2; 793 } 794 if(force_size && (force_size < 1 || force_size > 64)) { 795 info("bad force_size (%d), using default", force_size); 796 force_size = 0; 797 } 798 if(mem_type && mem_type != 1 && mem_type != 2) { 799 info("bad mem_type (%d), using default", mem_type); 800 mem_type = 0; 801 } 802 return pcmcia_register_driver(&pcmciamtd_driver); 803 } 804 805 806 static void __exit exit_pcmciamtd(void) 807 { 808 DEBUG(1, DRIVER_DESC " unloading"); 809 pcmcia_unregister_driver(&pcmciamtd_driver); 810 } 811 812 module_init(init_pcmciamtd); 813 module_exit(exit_pcmciamtd); 814