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 info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) 44 45 #define DRIVER_DESC "PCMCIA Flash memory card driver" 46 47 /* Size of the PCMCIA address space: 26 bits = 64 MB */ 48 #define MAX_PCMCIA_ADDR 0x4000000 49 50 struct pcmciamtd_dev { 51 struct pcmcia_device *p_dev; 52 caddr_t win_base; /* ioremapped address of PCMCIA window */ 53 unsigned int win_size; /* size of window */ 54 unsigned int offset; /* offset into card the window currently points at */ 55 struct map_info pcmcia_map; 56 struct mtd_info *mtd_info; 57 int vpp; 58 char mtd_name[sizeof(struct cistpl_vers_1_t)]; 59 }; 60 61 62 /* Module parameters */ 63 64 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */ 65 static int bankwidth = 2; 66 67 /* Speed of memory accesses, in ns */ 68 static int mem_speed; 69 70 /* Force the size of an SRAM card */ 71 static int force_size; 72 73 /* Force Vpp */ 74 static int vpp; 75 76 /* Set Vpp */ 77 static int setvpp; 78 79 /* Force card to be treated as FLASH, ROM or RAM */ 80 static int mem_type; 81 82 MODULE_LICENSE("GPL"); 83 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); 84 MODULE_DESCRIPTION(DRIVER_DESC); 85 module_param(bankwidth, int, 0); 86 MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); 87 module_param(mem_speed, int, 0); 88 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); 89 module_param(force_size, int, 0); 90 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); 91 module_param(setvpp, int, 0); 92 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); 93 module_param(vpp, int, 0); 94 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); 95 module_param(mem_type, int, 0); 96 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)"); 97 98 99 /* read/write{8,16} copy_{from,to} routines with window remapping 100 * to access whole card 101 */ 102 static caddr_t remap_window(struct map_info *map, unsigned long to) 103 { 104 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 105 window_handle_t win = (window_handle_t)map->map_priv_2; 106 memreq_t mrq; 107 int ret; 108 109 if (!pcmcia_dev_present(dev->p_dev)) { 110 DEBUG(1, "device removed"); 111 return 0; 112 } 113 114 mrq.CardOffset = to & ~(dev->win_size-1); 115 if(mrq.CardOffset != dev->offset) { 116 DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x", 117 dev->offset, mrq.CardOffset); 118 mrq.Page = 0; 119 ret = pcmcia_map_mem_page(dev->p_dev, win, &mrq); 120 if (ret != 0) 121 return NULL; 122 dev->offset = mrq.CardOffset; 123 } 124 return dev->win_base + (to & (dev->win_size-1)); 125 } 126 127 128 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) 129 { 130 caddr_t addr; 131 map_word d = {{0}}; 132 133 addr = remap_window(map, ofs); 134 if(!addr) 135 return d; 136 137 d.x[0] = readb(addr); 138 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", ofs, addr, d.x[0]); 139 return d; 140 } 141 142 143 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) 144 { 145 caddr_t addr; 146 map_word d = {{0}}; 147 148 addr = remap_window(map, ofs); 149 if(!addr) 150 return d; 151 152 d.x[0] = readw(addr); 153 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", ofs, addr, d.x[0]); 154 return d; 155 } 156 157 158 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) 159 { 160 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 161 unsigned long win_size = dev->win_size; 162 163 DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); 164 while(len) { 165 int toread = win_size - (from & (win_size-1)); 166 caddr_t addr; 167 168 if(toread > len) 169 toread = len; 170 171 addr = remap_window(map, from); 172 if(!addr) 173 return; 174 175 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); 176 memcpy_fromio(to, addr, toread); 177 len -= toread; 178 to += toread; 179 from += toread; 180 } 181 } 182 183 184 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) 185 { 186 caddr_t addr = remap_window(map, adr); 187 188 if(!addr) 189 return; 190 191 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", adr, addr, d.x[0]); 192 writeb(d.x[0], addr); 193 } 194 195 196 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) 197 { 198 caddr_t addr = remap_window(map, adr); 199 if(!addr) 200 return; 201 202 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", adr, addr, d.x[0]); 203 writew(d.x[0], addr); 204 } 205 206 207 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) 208 { 209 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 210 unsigned long win_size = dev->win_size; 211 212 DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); 213 while(len) { 214 int towrite = win_size - (to & (win_size-1)); 215 caddr_t addr; 216 217 if(towrite > len) 218 towrite = len; 219 220 addr = remap_window(map, to); 221 if(!addr) 222 return; 223 224 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); 225 memcpy_toio(addr, from, towrite); 226 len -= towrite; 227 to += towrite; 228 from += towrite; 229 } 230 } 231 232 233 /* read/write{8,16} copy_{from,to} routines with direct access */ 234 235 #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) 236 237 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) 238 { 239 caddr_t win_base = (caddr_t)map->map_priv_2; 240 map_word d = {{0}}; 241 242 if(DEV_REMOVED(map)) 243 return d; 244 245 d.x[0] = readb(win_base + ofs); 246 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", 247 ofs, win_base + ofs, d.x[0]); 248 return d; 249 } 250 251 252 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) 253 { 254 caddr_t win_base = (caddr_t)map->map_priv_2; 255 map_word d = {{0}}; 256 257 if(DEV_REMOVED(map)) 258 return d; 259 260 d.x[0] = readw(win_base + ofs); 261 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", 262 ofs, win_base + ofs, d.x[0]); 263 return d; 264 } 265 266 267 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) 268 { 269 caddr_t win_base = (caddr_t)map->map_priv_2; 270 271 if(DEV_REMOVED(map)) 272 return; 273 274 DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); 275 memcpy_fromio(to, win_base + from, len); 276 } 277 278 279 static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr) 280 { 281 caddr_t win_base = (caddr_t)map->map_priv_2; 282 283 if(DEV_REMOVED(map)) 284 return; 285 286 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", 287 adr, win_base + adr, d.x[0]); 288 writeb(d.x[0], win_base + adr); 289 } 290 291 292 static void pcmcia_write16(struct map_info *map, map_word 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%04lx", 300 adr, win_base + adr, d.x[0]); 301 writew(d.x[0], win_base + adr); 302 } 303 304 305 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) 306 { 307 caddr_t win_base = (caddr_t)map->map_priv_2; 308 309 if(DEV_REMOVED(map)) 310 return; 311 312 DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); 313 memcpy_toio(win_base + to, from, len); 314 } 315 316 317 static void pcmciamtd_set_vpp(struct map_info *map, int on) 318 { 319 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 320 struct pcmcia_device *link = dev->p_dev; 321 modconf_t mod; 322 int ret; 323 324 mod.Attributes = CONF_VPP1_CHANGE_VALID | CONF_VPP2_CHANGE_VALID; 325 mod.Vcc = 0; 326 mod.Vpp1 = mod.Vpp2 = on ? dev->vpp : 0; 327 328 DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp); 329 ret = pcmcia_modify_configuration(link, &mod); 330 } 331 332 333 /* After a card is removed, pcmciamtd_release() will unregister the 334 * device, and release the PCMCIA configuration. If the device is 335 * still open, this will be postponed until it is closed. 336 */ 337 338 static void pcmciamtd_release(struct pcmcia_device *link) 339 { 340 struct pcmciamtd_dev *dev = link->priv; 341 342 DEBUG(3, "link = 0x%p", link); 343 344 if (link->win) { 345 if(dev->win_base) { 346 iounmap(dev->win_base); 347 dev->win_base = NULL; 348 } 349 pcmcia_release_window(link, link->win); 350 } 351 pcmcia_disable_device(link); 352 } 353 354 355 #ifdef CONFIG_MTD_DEBUG 356 static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, 357 tuple_t *tuple, 358 void *priv_data) 359 { 360 cisparse_t parse; 361 362 if (!pcmcia_parse_tuple(tuple, &parse)) { 363 cistpl_format_t *t = &parse.format; 364 (void)t; /* Shut up, gcc */ 365 DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", 366 t->type, t->edc, t->offset, t->length); 367 } 368 return -ENOSPC; 369 } 370 371 static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, 372 tuple_t *tuple, 373 void *priv_data) 374 { 375 cisparse_t parse; 376 int i; 377 378 if (!pcmcia_parse_tuple(tuple, &parse)) { 379 cistpl_jedec_t *t = &parse.jedec; 380 for (i = 0; i < t->nid; i++) 381 DEBUG(2, "JEDEC: 0x%02x 0x%02x", 382 t->id[i].mfr, t->id[i].info); 383 } 384 return -ENOSPC; 385 } 386 #endif 387 388 static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, 389 tuple_t *tuple, 390 void *priv_data) 391 { 392 struct pcmciamtd_dev *dev = priv_data; 393 cisparse_t parse; 394 cistpl_device_t *t = &parse.device; 395 int i; 396 397 if (pcmcia_parse_tuple(tuple, &parse)) 398 return -EINVAL; 399 400 DEBUG(2, "Common memory:"); 401 dev->pcmcia_map.size = t->dev[0].size; 402 /* from here on: DEBUG only */ 403 for (i = 0; i < t->ndev; i++) { 404 DEBUG(2, "Region %d, type = %u", i, t->dev[i].type); 405 DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp); 406 DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed); 407 DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size); 408 } 409 return 0; 410 } 411 412 static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev, 413 tuple_t *tuple, 414 void *priv_data) 415 { 416 struct pcmciamtd_dev *dev = priv_data; 417 cisparse_t parse; 418 cistpl_device_geo_t *t = &parse.device_geo; 419 int i; 420 421 if (pcmcia_parse_tuple(tuple, &parse)) 422 return -EINVAL; 423 424 dev->pcmcia_map.bankwidth = t->geo[0].buswidth; 425 /* from here on: DEBUG only */ 426 for (i = 0; i < t->ngeo; i++) { 427 DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth); 428 DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block); 429 DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block); 430 DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block); 431 DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition); 432 DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave); 433 } 434 return 0; 435 } 436 437 438 static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name) 439 { 440 int i; 441 442 if (p_dev->prod_id[0]) { 443 dev->mtd_name[0] = '\0'; 444 for (i = 0; i < 4; i++) { 445 if (i) 446 strcat(dev->mtd_name, " "); 447 if (p_dev->prod_id[i]) 448 strcat(dev->mtd_name, p_dev->prod_id[i]); 449 } 450 DEBUG(2, "Found name: %s", dev->mtd_name); 451 } 452 453 #ifdef CONFIG_MTD_DEBUG 454 pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL); 455 pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL); 456 #endif 457 pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev); 458 pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev); 459 460 if(!dev->pcmcia_map.size) 461 dev->pcmcia_map.size = MAX_PCMCIA_ADDR; 462 463 if(!dev->pcmcia_map.bankwidth) 464 dev->pcmcia_map.bankwidth = 2; 465 466 if(force_size) { 467 dev->pcmcia_map.size = force_size << 20; 468 DEBUG(2, "size forced to %dM", force_size); 469 } 470 471 if(bankwidth) { 472 dev->pcmcia_map.bankwidth = bankwidth; 473 DEBUG(2, "bankwidth forced to %d", bankwidth); 474 } 475 476 dev->pcmcia_map.name = dev->mtd_name; 477 if(!dev->mtd_name[0]) { 478 strcpy(dev->mtd_name, "PCMCIA Memory card"); 479 *new_name = 1; 480 } 481 482 DEBUG(1, "Device: Size: %lu Width:%d Name: %s", 483 dev->pcmcia_map.size, 484 dev->pcmcia_map.bankwidth << 3, dev->mtd_name); 485 } 486 487 488 /* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event 489 * is received, to configure the PCMCIA socket, and to make the 490 * MTD device available to the system. 491 */ 492 493 static int pcmciamtd_config(struct pcmcia_device *link) 494 { 495 struct pcmciamtd_dev *dev = link->priv; 496 struct mtd_info *mtd = NULL; 497 win_req_t req; 498 int ret; 499 int i; 500 static char *probes[] = { "jedec_probe", "cfi_probe" }; 501 int new_name = 0; 502 503 DEBUG(3, "link=0x%p", link); 504 505 card_settings(dev, link, &new_name); 506 507 dev->pcmcia_map.phys = NO_XIP; 508 dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; 509 dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; 510 if (dev->pcmcia_map.bankwidth == 1) { 511 dev->pcmcia_map.read = pcmcia_read8_remap; 512 dev->pcmcia_map.write = pcmcia_write8_remap; 513 } else { 514 dev->pcmcia_map.read = pcmcia_read16_remap; 515 dev->pcmcia_map.write = pcmcia_write16_remap; 516 } 517 if(setvpp == 1) 518 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; 519 520 /* Request a memory window for PCMCIA. Some architeures can map windows 521 * upto the maximum that PCMCIA can support (64MiB) - this is ideal and 522 * we aim for a window the size of the whole card - otherwise we try 523 * smaller windows until we succeed 524 */ 525 526 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE; 527 req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; 528 req.Base = 0; 529 req.AccessSpeed = mem_speed; 530 link->win = (window_handle_t)link; 531 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR; 532 dev->win_size = 0; 533 534 do { 535 int ret; 536 DEBUG(2, "requesting window with size = %dKiB memspeed = %d", 537 req.Size >> 10, req.AccessSpeed); 538 ret = pcmcia_request_window(link, &req, &link->win); 539 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); 540 if(ret) { 541 req.Size >>= 1; 542 } else { 543 DEBUG(2, "Got window of size %dKiB", req.Size >> 10); 544 dev->win_size = req.Size; 545 break; 546 } 547 } while(req.Size >= 0x1000); 548 549 DEBUG(2, "dev->win_size = %d", dev->win_size); 550 551 if(!dev->win_size) { 552 dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n"); 553 pcmciamtd_release(link); 554 return -ENODEV; 555 } 556 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); 557 558 /* Get write protect status */ 559 DEBUG(2, "window handle = 0x%8.8lx", (unsigned long)link->win); 560 dev->win_base = ioremap(req.Base, req.Size); 561 if(!dev->win_base) { 562 dev_err(&dev->p_dev->dev, "ioremap(%lu, %u) failed\n", 563 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 dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp; 575 link->conf.Attributes = 0; 576 if(setvpp == 2) { 577 link->conf.Vpp = dev->vpp; 578 } else { 579 link->conf.Vpp = 0; 580 } 581 582 link->conf.IntType = INT_MEMORY; 583 link->conf.ConfigIndex = 0; 584 DEBUG(2, "Setting Configuration"); 585 ret = pcmcia_request_configuration(link, &link->conf); 586 if (ret != 0) { 587 if (dev->win_base) { 588 iounmap(dev->win_base); 589 dev->win_base = NULL; 590 } 591 return -ENODEV; 592 } 593 594 if(mem_type == 1) { 595 mtd = do_map_probe("map_ram", &dev->pcmcia_map); 596 } else if(mem_type == 2) { 597 mtd = do_map_probe("map_rom", &dev->pcmcia_map); 598 } else { 599 for(i = 0; i < ARRAY_SIZE(probes); i++) { 600 DEBUG(1, "Trying %s", probes[i]); 601 mtd = do_map_probe(probes[i], &dev->pcmcia_map); 602 if(mtd) 603 break; 604 605 DEBUG(1, "FAILED: %s", probes[i]); 606 } 607 } 608 609 if(!mtd) { 610 DEBUG(1, "Can not find an MTD"); 611 pcmciamtd_release(link); 612 return -ENODEV; 613 } 614 615 dev->mtd_info = mtd; 616 mtd->owner = THIS_MODULE; 617 618 if(new_name) { 619 int size = 0; 620 char unit = ' '; 621 /* Since we are using a default name, make it better by adding 622 * in the size 623 */ 624 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ 625 size = mtd->size >> 10; 626 unit = 'K'; 627 } else { 628 size = mtd->size >> 20; 629 unit = 'M'; 630 } 631 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); 632 } 633 634 /* If the memory found is fits completely into the mapped PCMCIA window, 635 use the faster non-remapping read/write functions */ 636 if(mtd->size <= dev->win_size) { 637 DEBUG(1, "Using non remapping memory functions"); 638 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; 639 if (dev->pcmcia_map.bankwidth == 1) { 640 dev->pcmcia_map.read = pcmcia_read8; 641 dev->pcmcia_map.write = pcmcia_write8; 642 } else { 643 dev->pcmcia_map.read = pcmcia_read16; 644 dev->pcmcia_map.write = pcmcia_write16; 645 } 646 dev->pcmcia_map.copy_from = pcmcia_copy_from; 647 dev->pcmcia_map.copy_to = pcmcia_copy_to; 648 } 649 650 if(add_mtd_device(mtd)) { 651 map_destroy(mtd); 652 dev->mtd_info = NULL; 653 dev_err(&dev->p_dev->dev, 654 "Could not register the MTD device\n"); 655 pcmciamtd_release(link); 656 return -ENODEV; 657 } 658 dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name); 659 return 0; 660 661 dev_err(&dev->p_dev->dev, "CS Error, exiting\n"); 662 pcmciamtd_release(link); 663 return -ENODEV; 664 } 665 666 667 static int pcmciamtd_suspend(struct pcmcia_device *dev) 668 { 669 DEBUG(2, "EVENT_PM_RESUME"); 670 671 /* get_lock(link); */ 672 673 return 0; 674 } 675 676 static int pcmciamtd_resume(struct pcmcia_device *dev) 677 { 678 DEBUG(2, "EVENT_PM_SUSPEND"); 679 680 /* free_lock(link); */ 681 682 return 0; 683 } 684 685 686 /* This deletes a driver "instance". The device is de-registered 687 * with Card Services. If it has been released, all local data 688 * structures are freed. Otherwise, the structures will be freed 689 * when the device is released. 690 */ 691 692 static void pcmciamtd_detach(struct pcmcia_device *link) 693 { 694 struct pcmciamtd_dev *dev = link->priv; 695 696 DEBUG(3, "link=0x%p", link); 697 698 if(dev->mtd_info) { 699 del_mtd_device(dev->mtd_info); 700 dev_info(&dev->p_dev->dev, "mtd%d: Removing\n", 701 dev->mtd_info->index); 702 map_destroy(dev->mtd_info); 703 } 704 705 pcmciamtd_release(link); 706 } 707 708 709 /* pcmciamtd_attach() creates an "instance" of the driver, allocating 710 * local data structures for one device. The device is registered 711 * with Card Services. 712 */ 713 714 static int pcmciamtd_probe(struct pcmcia_device *link) 715 { 716 struct pcmciamtd_dev *dev; 717 718 /* Create new memory card device */ 719 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 720 if (!dev) return -ENOMEM; 721 DEBUG(1, "dev=0x%p", dev); 722 723 dev->p_dev = link; 724 link->priv = dev; 725 726 link->conf.Attributes = 0; 727 link->conf.IntType = INT_MEMORY; 728 729 return pcmciamtd_config(link); 730 } 731 732 static struct pcmcia_device_id pcmciamtd_ids[] = { 733 PCMCIA_DEVICE_FUNC_ID(1), 734 PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), 735 PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), 736 PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), 737 PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), 738 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), 739 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), 740 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), 741 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), 742 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), 743 PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), 744 PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), 745 PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), 746 PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965), 747 PCMCIA_DEVICE_PROD_ID12("PRETEC", " 2MB SRAM CARD", 0xebf91155, 0x805360ca), 748 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), 749 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), 750 PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05), 751 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), 752 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), 753 /* the following was commented out in pcmcia-cs-3.2.7 */ 754 /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ 755 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS 756 { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, 757 #endif 758 PCMCIA_DEVICE_NULL 759 }; 760 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); 761 762 static struct pcmcia_driver pcmciamtd_driver = { 763 .drv = { 764 .name = "pcmciamtd" 765 }, 766 .probe = pcmciamtd_probe, 767 .remove = pcmciamtd_detach, 768 .owner = THIS_MODULE, 769 .id_table = pcmciamtd_ids, 770 .suspend = pcmciamtd_suspend, 771 .resume = pcmciamtd_resume, 772 }; 773 774 775 static int __init init_pcmciamtd(void) 776 { 777 info(DRIVER_DESC); 778 779 if(bankwidth && bankwidth != 1 && bankwidth != 2) { 780 info("bad bankwidth (%d), using default", bankwidth); 781 bankwidth = 2; 782 } 783 if(force_size && (force_size < 1 || force_size > 64)) { 784 info("bad force_size (%d), using default", force_size); 785 force_size = 0; 786 } 787 if(mem_type && mem_type != 1 && mem_type != 2) { 788 info("bad mem_type (%d), using default", mem_type); 789 mem_type = 0; 790 } 791 return pcmcia_register_driver(&pcmciamtd_driver); 792 } 793 794 795 static void __exit exit_pcmciamtd(void) 796 { 797 DEBUG(1, DRIVER_DESC " unloading"); 798 pcmcia_unregister_driver(&pcmciamtd_driver); 799 } 800 801 module_init(init_pcmciamtd); 802 module_exit(exit_pcmciamtd); 803