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.h> 20 #include <pcmcia/cistpl.h> 21 #include <pcmcia/ds.h> 22 23 #include <linux/mtd/map.h> 24 #include <linux/mtd/mtd.h> 25 26 #ifdef CONFIG_MTD_DEBUG 27 static int debug = CONFIG_MTD_DEBUG_VERBOSE; 28 module_param(debug, int, 0); 29 MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy"); 30 #undef DEBUG 31 #define DEBUG(n, format, arg...) \ 32 if (n <= debug) { \ 33 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \ 34 } 35 36 #else 37 #undef DEBUG 38 #define DEBUG(n, arg...) 39 static const int debug = 0; 40 #endif 41 42 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) 43 44 #define DRIVER_DESC "PCMCIA Flash memory card driver" 45 46 /* Size of the PCMCIA address space: 26 bits = 64 MB */ 47 #define MAX_PCMCIA_ADDR 0x4000000 48 49 struct pcmciamtd_dev { 50 struct pcmcia_device *p_dev; 51 caddr_t win_base; /* ioremapped address of PCMCIA window */ 52 unsigned int win_size; /* size of window */ 53 unsigned int offset; /* offset into card the window currently points at */ 54 struct map_info pcmcia_map; 55 struct mtd_info *mtd_info; 56 int vpp; 57 char mtd_name[sizeof(struct cistpl_vers_1_t)]; 58 }; 59 60 61 /* Module parameters */ 62 63 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */ 64 static int bankwidth = 2; 65 66 /* Speed of memory accesses, in ns */ 67 static int mem_speed; 68 69 /* Force the size of an SRAM card */ 70 static int force_size; 71 72 /* Force Vpp */ 73 static int vpp; 74 75 /* Set Vpp */ 76 static int setvpp; 77 78 /* Force card to be treated as FLASH, ROM or RAM */ 79 static int mem_type; 80 81 MODULE_LICENSE("GPL"); 82 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); 83 MODULE_DESCRIPTION(DRIVER_DESC); 84 module_param(bankwidth, int, 0); 85 MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); 86 module_param(mem_speed, int, 0); 87 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); 88 module_param(force_size, int, 0); 89 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); 90 module_param(setvpp, int, 0); 91 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); 92 module_param(vpp, int, 0); 93 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); 94 module_param(mem_type, int, 0); 95 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)"); 96 97 98 /* read/write{8,16} copy_{from,to} routines with window remapping 99 * to access whole card 100 */ 101 static caddr_t remap_window(struct map_info *map, unsigned long to) 102 { 103 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 104 window_handle_t win = (window_handle_t)map->map_priv_2; 105 unsigned int offset; 106 int ret; 107 108 if (!pcmcia_dev_present(dev->p_dev)) { 109 DEBUG(1, "device removed"); 110 return 0; 111 } 112 113 offset = to & ~(dev->win_size-1); 114 if (offset != dev->offset) { 115 DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x", 116 dev->offset, offset); 117 ret = pcmcia_map_mem_page(dev->p_dev, win, offset); 118 if (ret != 0) 119 return NULL; 120 dev->offset = offset; 121 } 122 return dev->win_base + (to & (dev->win_size-1)); 123 } 124 125 126 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) 127 { 128 caddr_t addr; 129 map_word d = {{0}}; 130 131 addr = remap_window(map, ofs); 132 if(!addr) 133 return d; 134 135 d.x[0] = readb(addr); 136 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", ofs, addr, d.x[0]); 137 return d; 138 } 139 140 141 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) 142 { 143 caddr_t addr; 144 map_word d = {{0}}; 145 146 addr = remap_window(map, ofs); 147 if(!addr) 148 return d; 149 150 d.x[0] = readw(addr); 151 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", ofs, addr, d.x[0]); 152 return d; 153 } 154 155 156 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) 157 { 158 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 159 unsigned long win_size = dev->win_size; 160 161 DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); 162 while(len) { 163 int toread = win_size - (from & (win_size-1)); 164 caddr_t addr; 165 166 if(toread > len) 167 toread = len; 168 169 addr = remap_window(map, from); 170 if(!addr) 171 return; 172 173 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); 174 memcpy_fromio(to, addr, toread); 175 len -= toread; 176 to += toread; 177 from += toread; 178 } 179 } 180 181 182 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) 183 { 184 caddr_t addr = remap_window(map, adr); 185 186 if(!addr) 187 return; 188 189 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", adr, addr, d.x[0]); 190 writeb(d.x[0], addr); 191 } 192 193 194 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) 195 { 196 caddr_t addr = remap_window(map, adr); 197 if(!addr) 198 return; 199 200 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", adr, addr, d.x[0]); 201 writew(d.x[0], addr); 202 } 203 204 205 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) 206 { 207 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 208 unsigned long win_size = dev->win_size; 209 210 DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); 211 while(len) { 212 int towrite = win_size - (to & (win_size-1)); 213 caddr_t addr; 214 215 if(towrite > len) 216 towrite = len; 217 218 addr = remap_window(map, to); 219 if(!addr) 220 return; 221 222 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); 223 memcpy_toio(addr, from, towrite); 224 len -= towrite; 225 to += towrite; 226 from += towrite; 227 } 228 } 229 230 231 /* read/write{8,16} copy_{from,to} routines with direct access */ 232 233 #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) 234 235 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) 236 { 237 caddr_t win_base = (caddr_t)map->map_priv_2; 238 map_word d = {{0}}; 239 240 if(DEV_REMOVED(map)) 241 return d; 242 243 d.x[0] = readb(win_base + ofs); 244 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", 245 ofs, win_base + ofs, d.x[0]); 246 return d; 247 } 248 249 250 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) 251 { 252 caddr_t win_base = (caddr_t)map->map_priv_2; 253 map_word d = {{0}}; 254 255 if(DEV_REMOVED(map)) 256 return d; 257 258 d.x[0] = readw(win_base + ofs); 259 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", 260 ofs, win_base + ofs, d.x[0]); 261 return d; 262 } 263 264 265 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) 266 { 267 caddr_t win_base = (caddr_t)map->map_priv_2; 268 269 if(DEV_REMOVED(map)) 270 return; 271 272 DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); 273 memcpy_fromio(to, win_base + from, len); 274 } 275 276 277 static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr) 278 { 279 caddr_t win_base = (caddr_t)map->map_priv_2; 280 281 if(DEV_REMOVED(map)) 282 return; 283 284 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", 285 adr, win_base + adr, d.x[0]); 286 writeb(d.x[0], win_base + adr); 287 } 288 289 290 static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr) 291 { 292 caddr_t win_base = (caddr_t)map->map_priv_2; 293 294 if(DEV_REMOVED(map)) 295 return; 296 297 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", 298 adr, win_base + adr, d.x[0]); 299 writew(d.x[0], win_base + adr); 300 } 301 302 303 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) 304 { 305 caddr_t win_base = (caddr_t)map->map_priv_2; 306 307 if(DEV_REMOVED(map)) 308 return; 309 310 DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); 311 memcpy_toio(win_base + to, from, len); 312 } 313 314 315 static void pcmciamtd_set_vpp(struct map_info *map, int on) 316 { 317 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 318 struct pcmcia_device *link = dev->p_dev; 319 modconf_t mod; 320 int ret; 321 322 mod.Attributes = CONF_VPP1_CHANGE_VALID | CONF_VPP2_CHANGE_VALID; 323 mod.Vcc = 0; 324 mod.Vpp1 = mod.Vpp2 = on ? dev->vpp : 0; 325 326 DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp); 327 ret = pcmcia_modify_configuration(link, &mod); 328 } 329 330 331 /* After a card is removed, pcmciamtd_release() will unregister the 332 * device, and release the PCMCIA configuration. If the device is 333 * still open, this will be postponed until it is closed. 334 */ 335 336 static void pcmciamtd_release(struct pcmcia_device *link) 337 { 338 struct pcmciamtd_dev *dev = link->priv; 339 340 DEBUG(3, "link = 0x%p", link); 341 342 if (link->win) { 343 if(dev->win_base) { 344 iounmap(dev->win_base); 345 dev->win_base = NULL; 346 } 347 } 348 pcmcia_disable_device(link); 349 } 350 351 352 #ifdef CONFIG_MTD_DEBUG 353 static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, 354 tuple_t *tuple, 355 void *priv_data) 356 { 357 cisparse_t parse; 358 359 if (!pcmcia_parse_tuple(tuple, &parse)) { 360 cistpl_format_t *t = &parse.format; 361 (void)t; /* Shut up, gcc */ 362 DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", 363 t->type, t->edc, t->offset, t->length); 364 } 365 return -ENOSPC; 366 } 367 368 static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, 369 tuple_t *tuple, 370 void *priv_data) 371 { 372 cisparse_t parse; 373 int i; 374 375 if (!pcmcia_parse_tuple(tuple, &parse)) { 376 cistpl_jedec_t *t = &parse.jedec; 377 for (i = 0; i < t->nid; i++) 378 DEBUG(2, "JEDEC: 0x%02x 0x%02x", 379 t->id[i].mfr, t->id[i].info); 380 } 381 return -ENOSPC; 382 } 383 #endif 384 385 static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, 386 tuple_t *tuple, 387 void *priv_data) 388 { 389 struct pcmciamtd_dev *dev = priv_data; 390 cisparse_t parse; 391 cistpl_device_t *t = &parse.device; 392 int i; 393 394 if (pcmcia_parse_tuple(tuple, &parse)) 395 return -EINVAL; 396 397 DEBUG(2, "Common memory:"); 398 dev->pcmcia_map.size = t->dev[0].size; 399 /* from here on: DEBUG only */ 400 for (i = 0; i < t->ndev; i++) { 401 DEBUG(2, "Region %d, type = %u", i, t->dev[i].type); 402 DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp); 403 DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed); 404 DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size); 405 } 406 return 0; 407 } 408 409 static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev, 410 tuple_t *tuple, 411 void *priv_data) 412 { 413 struct pcmciamtd_dev *dev = priv_data; 414 cisparse_t parse; 415 cistpl_device_geo_t *t = &parse.device_geo; 416 int i; 417 418 if (pcmcia_parse_tuple(tuple, &parse)) 419 return -EINVAL; 420 421 dev->pcmcia_map.bankwidth = t->geo[0].buswidth; 422 /* from here on: DEBUG only */ 423 for (i = 0; i < t->ngeo; i++) { 424 DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth); 425 DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block); 426 DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block); 427 DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block); 428 DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition); 429 DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave); 430 } 431 return 0; 432 } 433 434 435 static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name) 436 { 437 int i; 438 439 if (p_dev->prod_id[0]) { 440 dev->mtd_name[0] = '\0'; 441 for (i = 0; i < 4; i++) { 442 if (i) 443 strcat(dev->mtd_name, " "); 444 if (p_dev->prod_id[i]) 445 strcat(dev->mtd_name, p_dev->prod_id[i]); 446 } 447 DEBUG(2, "Found name: %s", dev->mtd_name); 448 } 449 450 #ifdef CONFIG_MTD_DEBUG 451 pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL); 452 pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL); 453 #endif 454 pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev); 455 pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev); 456 457 if(!dev->pcmcia_map.size) 458 dev->pcmcia_map.size = MAX_PCMCIA_ADDR; 459 460 if(!dev->pcmcia_map.bankwidth) 461 dev->pcmcia_map.bankwidth = 2; 462 463 if(force_size) { 464 dev->pcmcia_map.size = force_size << 20; 465 DEBUG(2, "size forced to %dM", force_size); 466 } 467 468 if(bankwidth) { 469 dev->pcmcia_map.bankwidth = bankwidth; 470 DEBUG(2, "bankwidth forced to %d", bankwidth); 471 } 472 473 dev->pcmcia_map.name = dev->mtd_name; 474 if(!dev->mtd_name[0]) { 475 strcpy(dev->mtd_name, "PCMCIA Memory card"); 476 *new_name = 1; 477 } 478 479 DEBUG(1, "Device: Size: %lu Width:%d Name: %s", 480 dev->pcmcia_map.size, 481 dev->pcmcia_map.bankwidth << 3, dev->mtd_name); 482 } 483 484 485 /* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event 486 * is received, to configure the PCMCIA socket, and to make the 487 * MTD device available to the system. 488 */ 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 win_req_t req; 495 int ret; 496 int i; 497 static char *probes[] = { "jedec_probe", "cfi_probe" }; 498 int new_name = 0; 499 500 DEBUG(3, "link=0x%p", link); 501 502 card_settings(dev, link, &new_name); 503 504 dev->pcmcia_map.phys = NO_XIP; 505 dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; 506 dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; 507 if (dev->pcmcia_map.bankwidth == 1) { 508 dev->pcmcia_map.read = pcmcia_read8_remap; 509 dev->pcmcia_map.write = pcmcia_write8_remap; 510 } else { 511 dev->pcmcia_map.read = pcmcia_read16_remap; 512 dev->pcmcia_map.write = pcmcia_write16_remap; 513 } 514 if(setvpp == 1) 515 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; 516 517 /* Request a memory window for PCMCIA. Some architeures can map windows 518 * upto the maximum that PCMCIA can support (64MiB) - this is ideal and 519 * we aim for a window the size of the whole card - otherwise we try 520 * smaller windows until we succeed 521 */ 522 523 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE; 524 req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; 525 req.Base = 0; 526 req.AccessSpeed = mem_speed; 527 link->win = (window_handle_t)link; 528 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR; 529 dev->win_size = 0; 530 531 do { 532 int ret; 533 DEBUG(2, "requesting window with size = %dKiB memspeed = %d", 534 req.Size >> 10, req.AccessSpeed); 535 ret = pcmcia_request_window(link, &req, &link->win); 536 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); 537 if(ret) { 538 req.Size >>= 1; 539 } else { 540 DEBUG(2, "Got window of size %dKiB", req.Size >> 10); 541 dev->win_size = req.Size; 542 break; 543 } 544 } while(req.Size >= 0x1000); 545 546 DEBUG(2, "dev->win_size = %d", dev->win_size); 547 548 if(!dev->win_size) { 549 dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n"); 550 pcmciamtd_release(link); 551 return -ENODEV; 552 } 553 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); 554 555 /* Get write protect status */ 556 DEBUG(2, "window handle = 0x%8.8lx", (unsigned long)link->win); 557 dev->win_base = ioremap(req.Base, req.Size); 558 if(!dev->win_base) { 559 dev_err(&dev->p_dev->dev, "ioremap(%lu, %u) failed\n", 560 req.Base, req.Size); 561 pcmciamtd_release(link); 562 return -ENODEV; 563 } 564 DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x", 565 dev, req.Base, dev->win_base, req.Size); 566 567 dev->offset = 0; 568 dev->pcmcia_map.map_priv_1 = (unsigned long)dev; 569 dev->pcmcia_map.map_priv_2 = (unsigned long)link->win; 570 571 dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp; 572 link->conf.Attributes = 0; 573 if(setvpp == 2) { 574 link->conf.Vpp = dev->vpp; 575 } else { 576 link->conf.Vpp = 0; 577 } 578 579 link->conf.IntType = INT_MEMORY; 580 link->conf.ConfigIndex = 0; 581 DEBUG(2, "Setting Configuration"); 582 ret = pcmcia_request_configuration(link, &link->conf); 583 if (ret != 0) { 584 if (dev->win_base) { 585 iounmap(dev->win_base); 586 dev->win_base = NULL; 587 } 588 return -ENODEV; 589 } 590 591 if(mem_type == 1) { 592 mtd = do_map_probe("map_ram", &dev->pcmcia_map); 593 } else if(mem_type == 2) { 594 mtd = do_map_probe("map_rom", &dev->pcmcia_map); 595 } else { 596 for(i = 0; i < ARRAY_SIZE(probes); i++) { 597 DEBUG(1, "Trying %s", probes[i]); 598 mtd = do_map_probe(probes[i], &dev->pcmcia_map); 599 if(mtd) 600 break; 601 602 DEBUG(1, "FAILED: %s", probes[i]); 603 } 604 } 605 606 if(!mtd) { 607 DEBUG(1, "Can not find an MTD"); 608 pcmciamtd_release(link); 609 return -ENODEV; 610 } 611 612 dev->mtd_info = mtd; 613 mtd->owner = THIS_MODULE; 614 615 if(new_name) { 616 int size = 0; 617 char unit = ' '; 618 /* Since we are using a default name, make it better by adding 619 * in the size 620 */ 621 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ 622 size = mtd->size >> 10; 623 unit = 'K'; 624 } else { 625 size = mtd->size >> 20; 626 unit = 'M'; 627 } 628 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); 629 } 630 631 /* If the memory found is fits completely into the mapped PCMCIA window, 632 use the faster non-remapping read/write functions */ 633 if(mtd->size <= dev->win_size) { 634 DEBUG(1, "Using non remapping memory functions"); 635 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; 636 if (dev->pcmcia_map.bankwidth == 1) { 637 dev->pcmcia_map.read = pcmcia_read8; 638 dev->pcmcia_map.write = pcmcia_write8; 639 } else { 640 dev->pcmcia_map.read = pcmcia_read16; 641 dev->pcmcia_map.write = pcmcia_write16; 642 } 643 dev->pcmcia_map.copy_from = pcmcia_copy_from; 644 dev->pcmcia_map.copy_to = pcmcia_copy_to; 645 } 646 647 if(add_mtd_device(mtd)) { 648 map_destroy(mtd); 649 dev->mtd_info = NULL; 650 dev_err(&dev->p_dev->dev, 651 "Could not register the MTD device\n"); 652 pcmciamtd_release(link); 653 return -ENODEV; 654 } 655 dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name); 656 return 0; 657 658 dev_err(&dev->p_dev->dev, "CS Error, exiting\n"); 659 pcmciamtd_release(link); 660 return -ENODEV; 661 } 662 663 664 static int pcmciamtd_suspend(struct pcmcia_device *dev) 665 { 666 DEBUG(2, "EVENT_PM_RESUME"); 667 668 /* get_lock(link); */ 669 670 return 0; 671 } 672 673 static int pcmciamtd_resume(struct pcmcia_device *dev) 674 { 675 DEBUG(2, "EVENT_PM_SUSPEND"); 676 677 /* free_lock(link); */ 678 679 return 0; 680 } 681 682 683 /* This deletes a driver "instance". The device is de-registered 684 * with Card Services. If it has been released, all local data 685 * structures are freed. Otherwise, the structures will be freed 686 * when the device is released. 687 */ 688 689 static void pcmciamtd_detach(struct pcmcia_device *link) 690 { 691 struct pcmciamtd_dev *dev = link->priv; 692 693 DEBUG(3, "link=0x%p", link); 694 695 if(dev->mtd_info) { 696 del_mtd_device(dev->mtd_info); 697 dev_info(&dev->p_dev->dev, "mtd%d: Removing\n", 698 dev->mtd_info->index); 699 map_destroy(dev->mtd_info); 700 } 701 702 pcmciamtd_release(link); 703 } 704 705 706 /* pcmciamtd_attach() creates an "instance" of the driver, allocating 707 * local data structures for one device. The device is registered 708 * with Card Services. 709 */ 710 711 static int pcmciamtd_probe(struct pcmcia_device *link) 712 { 713 struct pcmciamtd_dev *dev; 714 715 /* Create new memory card device */ 716 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 717 if (!dev) return -ENOMEM; 718 DEBUG(1, "dev=0x%p", dev); 719 720 dev->p_dev = link; 721 link->priv = dev; 722 723 link->conf.Attributes = 0; 724 link->conf.IntType = INT_MEMORY; 725 726 return pcmciamtd_config(link); 727 } 728 729 static struct pcmcia_device_id pcmciamtd_ids[] = { 730 PCMCIA_DEVICE_FUNC_ID(1), 731 PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), 732 PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), 733 PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), 734 PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), 735 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), 736 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), 737 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), 738 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), 739 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), 740 PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), 741 PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), 742 PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), 743 PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965), 744 PCMCIA_DEVICE_PROD_ID12("PRETEC", " 2MB SRAM CARD", 0xebf91155, 0x805360ca), 745 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), 746 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), 747 PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05), 748 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), 749 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), 750 /* the following was commented out in pcmcia-cs-3.2.7 */ 751 /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ 752 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS 753 { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, 754 #endif 755 PCMCIA_DEVICE_NULL 756 }; 757 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); 758 759 static struct pcmcia_driver pcmciamtd_driver = { 760 .drv = { 761 .name = "pcmciamtd" 762 }, 763 .probe = pcmciamtd_probe, 764 .remove = pcmciamtd_detach, 765 .owner = THIS_MODULE, 766 .id_table = pcmciamtd_ids, 767 .suspend = pcmciamtd_suspend, 768 .resume = pcmciamtd_resume, 769 }; 770 771 772 static int __init init_pcmciamtd(void) 773 { 774 info(DRIVER_DESC); 775 776 if(bankwidth && bankwidth != 1 && bankwidth != 2) { 777 info("bad bankwidth (%d), using default", bankwidth); 778 bankwidth = 2; 779 } 780 if(force_size && (force_size < 1 || force_size > 64)) { 781 info("bad force_size (%d), using default", force_size); 782 force_size = 0; 783 } 784 if(mem_type && mem_type != 1 && mem_type != 2) { 785 info("bad mem_type (%d), using default", mem_type); 786 mem_type = 0; 787 } 788 return pcmcia_register_driver(&pcmciamtd_driver); 789 } 790 791 792 static void __exit exit_pcmciamtd(void) 793 { 794 DEBUG(1, DRIVER_DESC " unloading"); 795 pcmcia_unregister_driver(&pcmciamtd_driver); 796 } 797 798 module_init(init_pcmciamtd); 799 module_exit(exit_pcmciamtd); 800