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 ret = pcmcia_map_mem_page(win, &mrq); 122 if (ret != 0) { 123 cs_error(dev->p_dev, MapMemPage, ret); 124 return NULL; 125 } 126 dev->offset = mrq.CardOffset; 127 } 128 return dev->win_base + (to & (dev->win_size-1)); 129 } 130 131 132 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) 133 { 134 caddr_t addr; 135 map_word d = {{0}}; 136 137 addr = remap_window(map, ofs); 138 if(!addr) 139 return d; 140 141 d.x[0] = readb(addr); 142 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, addr, d.x[0]); 143 return d; 144 } 145 146 147 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) 148 { 149 caddr_t addr; 150 map_word d = {{0}}; 151 152 addr = remap_window(map, ofs); 153 if(!addr) 154 return d; 155 156 d.x[0] = readw(addr); 157 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, addr, d.x[0]); 158 return d; 159 } 160 161 162 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) 163 { 164 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 165 unsigned long win_size = dev->win_size; 166 167 DEBUG(3, "to = %p from = %lu len = %u", to, from, len); 168 while(len) { 169 int toread = win_size - (from & (win_size-1)); 170 caddr_t addr; 171 172 if(toread > len) 173 toread = len; 174 175 addr = remap_window(map, from); 176 if(!addr) 177 return; 178 179 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); 180 memcpy_fromio(to, addr, toread); 181 len -= toread; 182 to += toread; 183 from += toread; 184 } 185 } 186 187 188 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) 189 { 190 caddr_t addr = remap_window(map, adr); 191 192 if(!addr) 193 return; 194 195 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, addr, d.x[0]); 196 writeb(d.x[0], addr); 197 } 198 199 200 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) 201 { 202 caddr_t addr = remap_window(map, adr); 203 if(!addr) 204 return; 205 206 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, addr, d.x[0]); 207 writew(d.x[0], addr); 208 } 209 210 211 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) 212 { 213 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 214 unsigned long win_size = dev->win_size; 215 216 DEBUG(3, "to = %lu from = %p len = %u", to, from, len); 217 while(len) { 218 int towrite = win_size - (to & (win_size-1)); 219 caddr_t addr; 220 221 if(towrite > len) 222 towrite = len; 223 224 addr = remap_window(map, to); 225 if(!addr) 226 return; 227 228 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); 229 memcpy_toio(addr, from, towrite); 230 len -= towrite; 231 to += towrite; 232 from += towrite; 233 } 234 } 235 236 237 /* read/write{8,16} copy_{from,to} routines with direct access */ 238 239 #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) 240 241 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) 242 { 243 caddr_t win_base = (caddr_t)map->map_priv_2; 244 map_word d = {{0}}; 245 246 if(DEV_REMOVED(map)) 247 return d; 248 249 d.x[0] = readb(win_base + ofs); 250 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, win_base + ofs, d.x[0]); 251 return d; 252 } 253 254 255 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) 256 { 257 caddr_t win_base = (caddr_t)map->map_priv_2; 258 map_word d = {{0}}; 259 260 if(DEV_REMOVED(map)) 261 return d; 262 263 d.x[0] = readw(win_base + ofs); 264 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, win_base + ofs, d.x[0]); 265 return d; 266 } 267 268 269 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) 270 { 271 caddr_t win_base = (caddr_t)map->map_priv_2; 272 273 if(DEV_REMOVED(map)) 274 return; 275 276 DEBUG(3, "to = %p from = %lu len = %u", to, from, len); 277 memcpy_fromio(to, win_base + from, len); 278 } 279 280 281 static void pcmcia_write8(struct map_info *map, u8 d, unsigned long adr) 282 { 283 caddr_t win_base = (caddr_t)map->map_priv_2; 284 285 if(DEV_REMOVED(map)) 286 return; 287 288 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, win_base + adr, d); 289 writeb(d, win_base + adr); 290 } 291 292 293 static void pcmcia_write16(struct map_info *map, u16 d, unsigned long adr) 294 { 295 caddr_t win_base = (caddr_t)map->map_priv_2; 296 297 if(DEV_REMOVED(map)) 298 return; 299 300 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, win_base + adr, d); 301 writew(d, 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 = %u", 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 if (ret != 0) 331 cs_error(link, ModifyConfiguration, ret); 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 == 0) { 372 rc = pcmcia_get_tuple_data(link, &tuple); 373 if (rc != 0) { 374 cs_error(link, GetTupleData, rc); 375 break; 376 } 377 rc = pcmcia_parse_tuple(&tuple, &parse); 378 if (rc != 0) { 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 static char *probes[] = { "jedec_probe", "cfi_probe" }; 497 int new_name = 0; 498 499 DEBUG(3, "link=0x%p", link); 500 501 card_settings(dev, link, &new_name); 502 503 dev->pcmcia_map.phys = NO_XIP; 504 dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; 505 dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; 506 if (dev->pcmcia_map.bankwidth == 1) { 507 dev->pcmcia_map.read = pcmcia_read8_remap; 508 dev->pcmcia_map.write = pcmcia_write8_remap; 509 } else { 510 dev->pcmcia_map.read = pcmcia_read16_remap; 511 dev->pcmcia_map.write = pcmcia_write16_remap; 512 } 513 if(setvpp == 1) 514 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; 515 516 /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum 517 that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the 518 whole card - otherwise we try smaller windows until we succeed */ 519 520 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE; 521 req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; 522 req.Base = 0; 523 req.AccessSpeed = mem_speed; 524 link->win = (window_handle_t)link; 525 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR; 526 dev->win_size = 0; 527 528 do { 529 int ret; 530 DEBUG(2, "requesting window with size = %dKiB memspeed = %d", 531 req.Size >> 10, req.AccessSpeed); 532 ret = pcmcia_request_window(&link, &req, &link->win); 533 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); 534 if(ret) { 535 req.Size >>= 1; 536 } else { 537 DEBUG(2, "Got window of size %dKiB", req.Size >> 10); 538 dev->win_size = req.Size; 539 break; 540 } 541 } while(req.Size >= 0x1000); 542 543 DEBUG(2, "dev->win_size = %d", dev->win_size); 544 545 if(!dev->win_size) { 546 err("Cant allocate memory window"); 547 pcmciamtd_release(link); 548 return -ENODEV; 549 } 550 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); 551 552 /* Get write protect status */ 553 DEBUG(2, "window handle = 0x%8.8lx", (unsigned long)link->win); 554 dev->win_base = ioremap(req.Base, req.Size); 555 if(!dev->win_base) { 556 err("ioremap(%lu, %u) failed", req.Base, req.Size); 557 pcmciamtd_release(link); 558 return -ENODEV; 559 } 560 DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x", 561 dev, req.Base, dev->win_base, req.Size); 562 563 dev->offset = 0; 564 dev->pcmcia_map.map_priv_1 = (unsigned long)dev; 565 dev->pcmcia_map.map_priv_2 = (unsigned long)link->win; 566 567 dev->vpp = (vpp) ? vpp : link->socket.socket.Vpp; 568 link->conf.Attributes = 0; 569 if(setvpp == 2) { 570 link->conf.Vpp = dev->vpp; 571 } else { 572 link->conf.Vpp = 0; 573 } 574 575 link->conf.IntType = INT_MEMORY; 576 link->conf.ConfigIndex = 0; 577 DEBUG(2, "Setting Configuration"); 578 ret = pcmcia_request_configuration(link, &link->conf); 579 if (ret != 0) { 580 cs_error(link, RequestConfiguration, ret); 581 if (dev->win_base) { 582 iounmap(dev->win_base); 583 dev->win_base = NULL; 584 } 585 return -ENODEV; 586 } 587 588 if(mem_type == 1) { 589 mtd = do_map_probe("map_ram", &dev->pcmcia_map); 590 } else if(mem_type == 2) { 591 mtd = do_map_probe("map_rom", &dev->pcmcia_map); 592 } else { 593 for(i = 0; i < ARRAY_SIZE(probes); i++) { 594 DEBUG(1, "Trying %s", probes[i]); 595 mtd = do_map_probe(probes[i], &dev->pcmcia_map); 596 if(mtd) 597 break; 598 599 DEBUG(1, "FAILED: %s", probes[i]); 600 } 601 } 602 603 if(!mtd) { 604 DEBUG(1, "Cant find an MTD"); 605 pcmciamtd_release(link); 606 return -ENODEV; 607 } 608 609 dev->mtd_info = mtd; 610 mtd->owner = THIS_MODULE; 611 612 if(new_name) { 613 int size = 0; 614 char unit = ' '; 615 /* Since we are using a default name, make it better by adding in the 616 size */ 617 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ 618 size = mtd->size >> 10; 619 unit = 'K'; 620 } else { 621 size = mtd->size >> 20; 622 unit = 'M'; 623 } 624 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); 625 } 626 627 /* If the memory found is fits completely into the mapped PCMCIA window, 628 use the faster non-remapping read/write functions */ 629 if(mtd->size <= dev->win_size) { 630 DEBUG(1, "Using non remapping memory functions"); 631 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; 632 if (dev->pcmcia_map.bankwidth == 1) { 633 dev->pcmcia_map.read = pcmcia_read8; 634 dev->pcmcia_map.write = pcmcia_write8; 635 } else { 636 dev->pcmcia_map.read = pcmcia_read16; 637 dev->pcmcia_map.write = pcmcia_write16; 638 } 639 dev->pcmcia_map.copy_from = pcmcia_copy_from; 640 dev->pcmcia_map.copy_to = pcmcia_copy_to; 641 } 642 643 if(add_mtd_device(mtd)) { 644 map_destroy(mtd); 645 dev->mtd_info = NULL; 646 err("Couldnt register MTD device"); 647 pcmciamtd_release(link); 648 return -ENODEV; 649 } 650 snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index); 651 info("mtd%d: %s", mtd->index, mtd->name); 652 link->dev_node = &dev->node; 653 return 0; 654 655 cs_failed: 656 cs_error(link, last_fn, last_ret); 657 err("CS Error, exiting"); 658 pcmciamtd_release(link); 659 return -ENODEV; 660 } 661 662 663 static int pcmciamtd_suspend(struct pcmcia_device *dev) 664 { 665 DEBUG(2, "EVENT_PM_RESUME"); 666 667 /* get_lock(link); */ 668 669 return 0; 670 } 671 672 static int pcmciamtd_resume(struct pcmcia_device *dev) 673 { 674 DEBUG(2, "EVENT_PM_SUSPEND"); 675 676 /* free_lock(link); */ 677 678 return 0; 679 } 680 681 682 /* This deletes a driver "instance". The device is de-registered 683 * with Card Services. If it has been released, all local data 684 * structures are freed. Otherwise, the structures will be freed 685 * when the device is released. 686 */ 687 688 static void pcmciamtd_detach(struct pcmcia_device *link) 689 { 690 struct pcmciamtd_dev *dev = link->priv; 691 692 DEBUG(3, "link=0x%p", link); 693 694 if(dev->mtd_info) { 695 del_mtd_device(dev->mtd_info); 696 map_destroy(dev->mtd_info); 697 info("mtd%d: Removed", dev->mtd_info->index); 698 } 699 700 pcmciamtd_release(link); 701 } 702 703 704 /* pcmciamtd_attach() creates an "instance" of the driver, allocating 705 * local data structures for one device. The device is registered 706 * with Card Services. 707 */ 708 709 static int pcmciamtd_probe(struct pcmcia_device *link) 710 { 711 struct pcmciamtd_dev *dev; 712 713 /* Create new memory card device */ 714 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 715 if (!dev) return -ENOMEM; 716 DEBUG(1, "dev=0x%p", dev); 717 718 dev->p_dev = link; 719 link->priv = dev; 720 721 link->conf.Attributes = 0; 722 link->conf.IntType = INT_MEMORY; 723 724 return pcmciamtd_config(link); 725 } 726 727 static struct pcmcia_device_id pcmciamtd_ids[] = { 728 PCMCIA_DEVICE_FUNC_ID(1), 729 PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), 730 PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), 731 PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), 732 PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), 733 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), 734 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), 735 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), 736 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), 737 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), 738 PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), 739 PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), 740 PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), 741 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), 742 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), 743 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), 744 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), 745 /* the following was commented out in pcmcia-cs-3.2.7 */ 746 /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ 747 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS 748 { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, 749 #endif 750 PCMCIA_DEVICE_NULL 751 }; 752 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); 753 754 static struct pcmcia_driver pcmciamtd_driver = { 755 .drv = { 756 .name = "pcmciamtd" 757 }, 758 .probe = pcmciamtd_probe, 759 .remove = pcmciamtd_detach, 760 .owner = THIS_MODULE, 761 .id_table = pcmciamtd_ids, 762 .suspend = pcmciamtd_suspend, 763 .resume = pcmciamtd_resume, 764 }; 765 766 767 static int __init init_pcmciamtd(void) 768 { 769 info(DRIVER_DESC); 770 771 if(bankwidth && bankwidth != 1 && bankwidth != 2) { 772 info("bad bankwidth (%d), using default", bankwidth); 773 bankwidth = 2; 774 } 775 if(force_size && (force_size < 1 || force_size > 64)) { 776 info("bad force_size (%d), using default", force_size); 777 force_size = 0; 778 } 779 if(mem_type && mem_type != 1 && mem_type != 2) { 780 info("bad mem_type (%d), using default", mem_type); 781 mem_type = 0; 782 } 783 return pcmcia_register_driver(&pcmciamtd_driver); 784 } 785 786 787 static void __exit exit_pcmciamtd(void) 788 { 789 DEBUG(1, DRIVER_DESC " unloading"); 790 pcmcia_unregister_driver(&pcmciamtd_driver); 791 } 792 793 module_init(init_pcmciamtd); 794 module_exit(exit_pcmciamtd); 795