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