1 /* 2 * $Id: pcmciamtd.c,v 1.55 2005/11/07 11:14:28 gleixner Exp $ 3 * 4 * pcmciamtd.c - MTD driver for PCMCIA flash memory cards 5 * 6 * Author: Simon Evans <spse@secret.org.uk> 7 * 8 * Copyright (C) 2002 Simon Evans 9 * 10 * Licence: GPL 11 * 12 */ 13 14 #include <linux/module.h> 15 #include <linux/slab.h> 16 #include <linux/timer.h> 17 #include <linux/init.h> 18 #include <asm/io.h> 19 #include <asm/system.h> 20 21 #include <pcmcia/cs_types.h> 22 #include <pcmcia/cs.h> 23 #include <pcmcia/cistpl.h> 24 #include <pcmcia/ds.h> 25 26 #include <linux/mtd/map.h> 27 #include <linux/mtd/mtd.h> 28 29 #ifdef CONFIG_MTD_DEBUG 30 static int debug = CONFIG_MTD_DEBUG_VERBOSE; 31 MODULE_PARM(debug, "i"); 32 MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy"); 33 #undef DEBUG 34 #define DEBUG(n, format, arg...) \ 35 if (n <= debug) { \ 36 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \ 37 } 38 39 #else 40 #undef DEBUG 41 #define DEBUG(n, arg...) 42 static const int debug = 0; 43 #endif 44 45 #define err(format, arg...) printk(KERN_ERR "pcmciamtd: " format "\n" , ## arg) 46 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) 47 #define warn(format, arg...) printk(KERN_WARNING "pcmciamtd: " format "\n" , ## arg) 48 49 50 #define DRIVER_DESC "PCMCIA Flash memory card driver" 51 #define DRIVER_VERSION "$Revision: 1.55 $" 52 53 /* Size of the PCMCIA address space: 26 bits = 64 MB */ 54 #define MAX_PCMCIA_ADDR 0x4000000 55 56 struct pcmciamtd_dev { 57 dev_link_t link; /* PCMCIA link */ 58 dev_node_t node; /* device node */ 59 caddr_t win_base; /* ioremapped address of PCMCIA window */ 60 unsigned int win_size; /* size of window */ 61 unsigned int offset; /* offset into card the window currently points at */ 62 struct map_info pcmcia_map; 63 struct mtd_info *mtd_info; 64 int vpp; 65 char mtd_name[sizeof(struct cistpl_vers_1_t)]; 66 }; 67 68 69 /* Module parameters */ 70 71 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */ 72 static int bankwidth = 2; 73 74 /* Speed of memory accesses, in ns */ 75 static int mem_speed; 76 77 /* Force the size of an SRAM card */ 78 static int force_size; 79 80 /* Force Vpp */ 81 static int vpp; 82 83 /* Set Vpp */ 84 static int setvpp; 85 86 /* Force card to be treated as FLASH, ROM or RAM */ 87 static int mem_type; 88 89 MODULE_LICENSE("GPL"); 90 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); 91 MODULE_DESCRIPTION(DRIVER_DESC); 92 MODULE_PARM(bankwidth, "i"); 93 MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); 94 MODULE_PARM(mem_speed, "i"); 95 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); 96 MODULE_PARM(force_size, "i"); 97 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); 98 MODULE_PARM(setvpp, "i"); 99 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); 100 MODULE_PARM(vpp, "i"); 101 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); 102 MODULE_PARM(mem_type, "i"); 103 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)"); 104 105 106 /* read/write{8,16} copy_{from,to} routines with window remapping to access whole card */ 107 static caddr_t remap_window(struct map_info *map, unsigned long to) 108 { 109 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 110 window_handle_t win = (window_handle_t)map->map_priv_2; 111 memreq_t mrq; 112 int ret; 113 114 if(!(dev->link.state & DEV_PRESENT)) { 115 DEBUG(1, "device removed state = 0x%4.4X", dev->link.state); 116 return 0; 117 } 118 119 mrq.CardOffset = to & ~(dev->win_size-1); 120 if(mrq.CardOffset != dev->offset) { 121 DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x", 122 dev->offset, mrq.CardOffset); 123 mrq.Page = 0; 124 if( (ret = pcmcia_map_mem_page(win, &mrq)) != CS_SUCCESS) { 125 cs_error(dev->link.handle, MapMemPage, ret); 126 return NULL; 127 } 128 dev->offset = mrq.CardOffset; 129 } 130 return dev->win_base + (to & (dev->win_size-1)); 131 } 132 133 134 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) 135 { 136 caddr_t addr; 137 map_word d = {{0}}; 138 139 addr = remap_window(map, ofs); 140 if(!addr) 141 return d; 142 143 d.x[0] = readb(addr); 144 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, addr, d.x[0]); 145 return d; 146 } 147 148 149 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) 150 { 151 caddr_t addr; 152 map_word d = {{0}}; 153 154 addr = remap_window(map, ofs); 155 if(!addr) 156 return d; 157 158 d.x[0] = readw(addr); 159 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, addr, d.x[0]); 160 return d; 161 } 162 163 164 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) 165 { 166 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 167 unsigned long win_size = dev->win_size; 168 169 DEBUG(3, "to = %p from = %lu len = %u", to, from, len); 170 while(len) { 171 int toread = win_size - (from & (win_size-1)); 172 caddr_t addr; 173 174 if(toread > len) 175 toread = len; 176 177 addr = remap_window(map, from); 178 if(!addr) 179 return; 180 181 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); 182 memcpy_fromio(to, addr, toread); 183 len -= toread; 184 to += toread; 185 from += toread; 186 } 187 } 188 189 190 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) 191 { 192 caddr_t addr = remap_window(map, adr); 193 194 if(!addr) 195 return; 196 197 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, addr, d.x[0]); 198 writeb(d.x[0], addr); 199 } 200 201 202 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) 203 { 204 caddr_t addr = remap_window(map, adr); 205 if(!addr) 206 return; 207 208 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, addr, d.x[0]); 209 writew(d.x[0], addr); 210 } 211 212 213 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) 214 { 215 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 216 unsigned long win_size = dev->win_size; 217 218 DEBUG(3, "to = %lu from = %p len = %u", to, from, len); 219 while(len) { 220 int towrite = win_size - (to & (win_size-1)); 221 caddr_t addr; 222 223 if(towrite > len) 224 towrite = len; 225 226 addr = remap_window(map, to); 227 if(!addr) 228 return; 229 230 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); 231 memcpy_toio(addr, from, towrite); 232 len -= towrite; 233 to += towrite; 234 from += towrite; 235 } 236 } 237 238 239 /* read/write{8,16} copy_{from,to} routines with direct access */ 240 241 #define DEV_REMOVED(x) (!(*(u_int *)x->map_priv_1 & DEV_PRESENT)) 242 243 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) 244 { 245 caddr_t win_base = (caddr_t)map->map_priv_2; 246 map_word d = {{0}}; 247 248 if(DEV_REMOVED(map)) 249 return d; 250 251 d.x[0] = readb(win_base + ofs); 252 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, win_base + ofs, d.x[0]); 253 return d; 254 } 255 256 257 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) 258 { 259 caddr_t win_base = (caddr_t)map->map_priv_2; 260 map_word d = {{0}}; 261 262 if(DEV_REMOVED(map)) 263 return d; 264 265 d.x[0] = readw(win_base + ofs); 266 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, win_base + ofs, d.x[0]); 267 return d; 268 } 269 270 271 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) 272 { 273 caddr_t win_base = (caddr_t)map->map_priv_2; 274 275 if(DEV_REMOVED(map)) 276 return; 277 278 DEBUG(3, "to = %p from = %lu len = %u", to, from, len); 279 memcpy_fromio(to, win_base + from, len); 280 } 281 282 283 static void pcmcia_write8(struct map_info *map, u8 d, unsigned long adr) 284 { 285 caddr_t win_base = (caddr_t)map->map_priv_2; 286 287 if(DEV_REMOVED(map)) 288 return; 289 290 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, win_base + adr, d); 291 writeb(d, win_base + adr); 292 } 293 294 295 static void pcmcia_write16(struct map_info *map, u16 d, unsigned long adr) 296 { 297 caddr_t win_base = (caddr_t)map->map_priv_2; 298 299 if(DEV_REMOVED(map)) 300 return; 301 302 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, win_base + adr, d); 303 writew(d, win_base + adr); 304 } 305 306 307 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) 308 { 309 caddr_t win_base = (caddr_t)map->map_priv_2; 310 311 if(DEV_REMOVED(map)) 312 return; 313 314 DEBUG(3, "to = %lu from = %p len = %u", to, from, len); 315 memcpy_toio(win_base + to, from, len); 316 } 317 318 319 static void pcmciamtd_set_vpp(struct map_info *map, int on) 320 { 321 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 322 dev_link_t *link = &dev->link; 323 modconf_t mod; 324 int ret; 325 326 mod.Attributes = CONF_VPP1_CHANGE_VALID | CONF_VPP2_CHANGE_VALID; 327 mod.Vcc = 0; 328 mod.Vpp1 = mod.Vpp2 = on ? dev->vpp : 0; 329 330 DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp); 331 ret = pcmcia_modify_configuration(link->handle, &mod); 332 if(ret != CS_SUCCESS) { 333 cs_error(link->handle, ModifyConfiguration, ret); 334 } 335 } 336 337 338 /* After a card is removed, pcmciamtd_release() will unregister the 339 * device, and release the PCMCIA configuration. If the device is 340 * still open, this will be postponed until it is closed. 341 */ 342 343 static void pcmciamtd_release(dev_link_t *link) 344 { 345 struct pcmciamtd_dev *dev = link->priv; 346 347 DEBUG(3, "link = 0x%p", link); 348 349 if (link->win) { 350 if(dev->win_base) { 351 iounmap(dev->win_base); 352 dev->win_base = NULL; 353 } 354 pcmcia_release_window(link->win); 355 } 356 pcmcia_release_configuration(link->handle); 357 link->state &= ~DEV_CONFIG; 358 } 359 360 361 static void card_settings(struct pcmciamtd_dev *dev, dev_link_t *link, int *new_name) 362 { 363 int rc; 364 tuple_t tuple; 365 cisparse_t parse; 366 u_char buf[64]; 367 368 tuple.Attributes = 0; 369 tuple.TupleData = (cisdata_t *)buf; 370 tuple.TupleDataMax = sizeof(buf); 371 tuple.TupleOffset = 0; 372 tuple.DesiredTuple = RETURN_FIRST_TUPLE; 373 374 rc = pcmcia_get_first_tuple(link->handle, &tuple); 375 while(rc == CS_SUCCESS) { 376 rc = pcmcia_get_tuple_data(link->handle, &tuple); 377 if(rc != CS_SUCCESS) { 378 cs_error(link->handle, GetTupleData, rc); 379 break; 380 } 381 rc = pcmcia_parse_tuple(link->handle, &tuple, &parse); 382 if(rc != CS_SUCCESS) { 383 cs_error(link->handle, ParseTuple, rc); 384 break; 385 } 386 387 switch(tuple.TupleCode) { 388 case CISTPL_FORMAT: { 389 cistpl_format_t *t = &parse.format; 390 (void)t; /* Shut up, gcc */ 391 DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", 392 t->type, t->edc, t->offset, t->length); 393 break; 394 395 } 396 397 case CISTPL_DEVICE: { 398 cistpl_device_t *t = &parse.device; 399 int i; 400 DEBUG(2, "Common memory:"); 401 dev->pcmcia_map.size = t->dev[0].size; 402 for(i = 0; i < t->ndev; i++) { 403 DEBUG(2, "Region %d, type = %u", i, t->dev[i].type); 404 DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp); 405 DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed); 406 DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size); 407 } 408 break; 409 } 410 411 case CISTPL_VERS_1: { 412 cistpl_vers_1_t *t = &parse.version_1; 413 int i; 414 if(t->ns) { 415 dev->mtd_name[0] = '\0'; 416 for(i = 0; i < t->ns; i++) { 417 if(i) 418 strcat(dev->mtd_name, " "); 419 strcat(dev->mtd_name, t->str+t->ofs[i]); 420 } 421 } 422 DEBUG(2, "Found name: %s", dev->mtd_name); 423 break; 424 } 425 426 case CISTPL_JEDEC_C: { 427 cistpl_jedec_t *t = &parse.jedec; 428 int i; 429 for(i = 0; i < t->nid; i++) { 430 DEBUG(2, "JEDEC: 0x%02x 0x%02x", t->id[i].mfr, t->id[i].info); 431 } 432 break; 433 } 434 435 case CISTPL_DEVICE_GEO: { 436 cistpl_device_geo_t *t = &parse.device_geo; 437 int i; 438 dev->pcmcia_map.bankwidth = t->geo[0].buswidth; 439 for(i = 0; i < t->ngeo; i++) { 440 DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth); 441 DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block); 442 DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block); 443 DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block); 444 DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition); 445 DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave); 446 } 447 break; 448 } 449 450 default: 451 DEBUG(2, "Unknown tuple code %d", tuple.TupleCode); 452 } 453 454 rc = pcmcia_get_next_tuple(link->handle, &tuple); 455 } 456 if(!dev->pcmcia_map.size) 457 dev->pcmcia_map.size = MAX_PCMCIA_ADDR; 458 459 if(!dev->pcmcia_map.bankwidth) 460 dev->pcmcia_map.bankwidth = 2; 461 462 if(force_size) { 463 dev->pcmcia_map.size = force_size << 20; 464 DEBUG(2, "size forced to %dM", force_size); 465 } 466 467 if(bankwidth) { 468 dev->pcmcia_map.bankwidth = bankwidth; 469 DEBUG(2, "bankwidth forced to %d", bankwidth); 470 } 471 472 dev->pcmcia_map.name = dev->mtd_name; 473 if(!dev->mtd_name[0]) { 474 strcpy(dev->mtd_name, "PCMCIA Memory card"); 475 *new_name = 1; 476 } 477 478 DEBUG(1, "Device: Size: %lu Width:%d Name: %s", 479 dev->pcmcia_map.size, dev->pcmcia_map.bankwidth << 3, dev->mtd_name); 480 } 481 482 483 /* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event 484 * is received, to configure the PCMCIA socket, and to make the 485 * MTD device available to the system. 486 */ 487 488 #define CS_CHECK(fn, ret) \ 489 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) 490 491 static void pcmciamtd_config(dev_link_t *link) 492 { 493 struct pcmciamtd_dev *dev = link->priv; 494 struct mtd_info *mtd = NULL; 495 cs_status_t status; 496 win_req_t req; 497 int last_ret = 0, last_fn = 0; 498 int ret; 499 int i; 500 config_info_t t; 501 static char *probes[] = { "jedec_probe", "cfi_probe" }; 502 cisinfo_t cisinfo; 503 int new_name = 0; 504 505 DEBUG(3, "link=0x%p", link); 506 507 /* Configure card */ 508 link->state |= DEV_CONFIG; 509 510 DEBUG(2, "Validating CIS"); 511 ret = pcmcia_validate_cis(link->handle, &cisinfo); 512 if(ret != CS_SUCCESS) { 513 cs_error(link->handle, GetTupleData, ret); 514 } else { 515 DEBUG(2, "ValidateCIS found %d chains", cisinfo.Chains); 516 } 517 518 card_settings(dev, link, &new_name); 519 520 dev->pcmcia_map.phys = NO_XIP; 521 dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; 522 dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; 523 if (dev->pcmcia_map.bankwidth == 1) { 524 dev->pcmcia_map.read = pcmcia_read8_remap; 525 dev->pcmcia_map.write = pcmcia_write8_remap; 526 } else { 527 dev->pcmcia_map.read = pcmcia_read16_remap; 528 dev->pcmcia_map.write = pcmcia_write16_remap; 529 } 530 if(setvpp == 1) 531 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; 532 533 /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum 534 that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the 535 whole card - otherwise we try smaller windows until we succeed */ 536 537 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE; 538 req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; 539 req.Base = 0; 540 req.AccessSpeed = mem_speed; 541 link->win = (window_handle_t)link->handle; 542 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR; 543 dev->win_size = 0; 544 545 do { 546 int ret; 547 DEBUG(2, "requesting window with size = %dKiB memspeed = %d", 548 req.Size >> 10, req.AccessSpeed); 549 ret = pcmcia_request_window(&link->handle, &req, &link->win); 550 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); 551 if(ret) { 552 req.Size >>= 1; 553 } else { 554 DEBUG(2, "Got window of size %dKiB", req.Size >> 10); 555 dev->win_size = req.Size; 556 break; 557 } 558 } while(req.Size >= 0x1000); 559 560 DEBUG(2, "dev->win_size = %d", dev->win_size); 561 562 if(!dev->win_size) { 563 err("Cant allocate memory window"); 564 pcmciamtd_release(link); 565 return; 566 } 567 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); 568 569 /* Get write protect status */ 570 CS_CHECK(GetStatus, pcmcia_get_status(link->handle, &status)); 571 DEBUG(2, "status value: 0x%x window handle = 0x%8.8lx", 572 status.CardState, (unsigned long)link->win); 573 dev->win_base = ioremap(req.Base, req.Size); 574 if(!dev->win_base) { 575 err("ioremap(%lu, %u) failed", req.Base, req.Size); 576 pcmciamtd_release(link); 577 return; 578 } 579 DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x", 580 dev, req.Base, dev->win_base, req.Size); 581 582 dev->offset = 0; 583 dev->pcmcia_map.map_priv_1 = (unsigned long)dev; 584 dev->pcmcia_map.map_priv_2 = (unsigned long)link->win; 585 586 DEBUG(2, "Getting configuration"); 587 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link->handle, &t)); 588 DEBUG(2, "Vcc = %d Vpp1 = %d Vpp2 = %d", t.Vcc, t.Vpp1, t.Vpp2); 589 dev->vpp = (vpp) ? vpp : t.Vpp1; 590 link->conf.Attributes = 0; 591 link->conf.Vcc = t.Vcc; 592 if(setvpp == 2) { 593 link->conf.Vpp1 = dev->vpp; 594 link->conf.Vpp2 = dev->vpp; 595 } else { 596 link->conf.Vpp1 = 0; 597 link->conf.Vpp2 = 0; 598 } 599 600 link->conf.IntType = INT_MEMORY; 601 link->conf.ConfigBase = t.ConfigBase; 602 link->conf.Status = t.Status; 603 link->conf.Pin = t.Pin; 604 link->conf.Copy = t.Copy; 605 link->conf.ExtStatus = t.ExtStatus; 606 link->conf.ConfigIndex = 0; 607 link->conf.Present = t.Present; 608 DEBUG(2, "Setting Configuration"); 609 ret = pcmcia_request_configuration(link->handle, &link->conf); 610 if(ret != CS_SUCCESS) { 611 cs_error(link->handle, RequestConfiguration, ret); 612 } 613 614 if(mem_type == 1) { 615 mtd = do_map_probe("map_ram", &dev->pcmcia_map); 616 } else if(mem_type == 2) { 617 mtd = do_map_probe("map_rom", &dev->pcmcia_map); 618 } else { 619 for(i = 0; i < sizeof(probes) / sizeof(char *); i++) { 620 DEBUG(1, "Trying %s", probes[i]); 621 mtd = do_map_probe(probes[i], &dev->pcmcia_map); 622 if(mtd) 623 break; 624 625 DEBUG(1, "FAILED: %s", probes[i]); 626 } 627 } 628 629 if(!mtd) { 630 DEBUG(1, "Cant find an MTD"); 631 pcmciamtd_release(link); 632 return; 633 } 634 635 dev->mtd_info = mtd; 636 mtd->owner = THIS_MODULE; 637 638 if(new_name) { 639 int size = 0; 640 char unit = ' '; 641 /* Since we are using a default name, make it better by adding in the 642 size */ 643 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ 644 size = mtd->size >> 10; 645 unit = 'K'; 646 } else { 647 size = mtd->size >> 20; 648 unit = 'M'; 649 } 650 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); 651 } 652 653 /* If the memory found is fits completely into the mapped PCMCIA window, 654 use the faster non-remapping read/write functions */ 655 if(mtd->size <= dev->win_size) { 656 DEBUG(1, "Using non remapping memory functions"); 657 dev->pcmcia_map.map_priv_1 = (unsigned long)&(dev->link.state); 658 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; 659 if (dev->pcmcia_map.bankwidth == 1) { 660 dev->pcmcia_map.read = pcmcia_read8; 661 dev->pcmcia_map.write = pcmcia_write8; 662 } else { 663 dev->pcmcia_map.read = pcmcia_read16; 664 dev->pcmcia_map.write = pcmcia_write16; 665 } 666 dev->pcmcia_map.copy_from = pcmcia_copy_from; 667 dev->pcmcia_map.copy_to = pcmcia_copy_to; 668 } 669 670 if(add_mtd_device(mtd)) { 671 map_destroy(mtd); 672 dev->mtd_info = NULL; 673 err("Couldnt register MTD device"); 674 pcmciamtd_release(link); 675 return; 676 } 677 snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index); 678 info("mtd%d: %s", mtd->index, mtd->name); 679 link->state &= ~DEV_CONFIG_PENDING; 680 link->dev = &dev->node; 681 return; 682 683 cs_failed: 684 cs_error(link->handle, last_fn, last_ret); 685 err("CS Error, exiting"); 686 pcmciamtd_release(link); 687 return; 688 } 689 690 691 static int pcmciamtd_suspend(struct pcmcia_device *dev) 692 { 693 DEBUG(2, "EVENT_PM_RESUME"); 694 695 /* get_lock(link); */ 696 697 return 0; 698 } 699 700 static int pcmciamtd_resume(struct pcmcia_device *dev) 701 { 702 DEBUG(2, "EVENT_PM_SUSPEND"); 703 704 /* free_lock(link); */ 705 706 return 0; 707 } 708 709 710 /* This deletes a driver "instance". The device is de-registered 711 * with Card Services. If it has been released, all local data 712 * structures are freed. Otherwise, the structures will be freed 713 * when the device is released. 714 */ 715 716 static void pcmciamtd_detach(struct pcmcia_device *p_dev) 717 { 718 dev_link_t *link = dev_to_instance(p_dev); 719 720 DEBUG(3, "link=0x%p", link); 721 722 if(link->state & DEV_CONFIG) { 723 struct pcmciamtd_dev *dev = link->priv; 724 if(dev->mtd_info) { 725 del_mtd_device(dev->mtd_info); 726 info("mtd%d: Removed", dev->mtd_info->index); 727 } 728 729 pcmciamtd_release(link); 730 } 731 } 732 733 734 /* pcmciamtd_attach() creates an "instance" of the driver, allocating 735 * local data structures for one device. The device is registered 736 * with Card Services. 737 */ 738 739 static int pcmciamtd_attach(struct pcmcia_device *p_dev) 740 { 741 struct pcmciamtd_dev *dev; 742 dev_link_t *link; 743 744 /* Create new memory card device */ 745 dev = kmalloc(sizeof(*dev), GFP_KERNEL); 746 if (!dev) return -ENOMEM; 747 DEBUG(1, "dev=0x%p", dev); 748 749 memset(dev, 0, sizeof(*dev)); 750 link = &dev->link; 751 link->priv = dev; 752 753 link->conf.Attributes = 0; 754 link->conf.IntType = INT_MEMORY; 755 756 link->next = NULL; 757 link->handle = p_dev; 758 p_dev->instance = link; 759 760 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; 761 pcmciamtd_config(link); 762 763 return 0; 764 } 765 766 static struct pcmcia_device_id pcmciamtd_ids[] = { 767 PCMCIA_DEVICE_FUNC_ID(1), 768 PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), 769 PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), 770 PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), 771 PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), 772 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), 773 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), 774 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), 775 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), 776 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), 777 PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), 778 PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), 779 PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), 780 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), 781 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), 782 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), 783 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), 784 /* the following was commented out in pcmcia-cs-3.2.7 */ 785 /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ 786 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS 787 { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, 788 #endif 789 PCMCIA_DEVICE_NULL 790 }; 791 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); 792 793 static struct pcmcia_driver pcmciamtd_driver = { 794 .drv = { 795 .name = "pcmciamtd" 796 }, 797 .probe = pcmciamtd_attach, 798 .remove = pcmciamtd_detach, 799 .owner = THIS_MODULE, 800 .id_table = pcmciamtd_ids, 801 .suspend = pcmciamtd_suspend, 802 .resume = pcmciamtd_resume, 803 }; 804 805 806 static int __init init_pcmciamtd(void) 807 { 808 info(DRIVER_DESC " " DRIVER_VERSION); 809 810 if(bankwidth && bankwidth != 1 && bankwidth != 2) { 811 info("bad bankwidth (%d), using default", bankwidth); 812 bankwidth = 2; 813 } 814 if(force_size && (force_size < 1 || force_size > 64)) { 815 info("bad force_size (%d), using default", force_size); 816 force_size = 0; 817 } 818 if(mem_type && mem_type != 1 && mem_type != 2) { 819 info("bad mem_type (%d), using default", mem_type); 820 mem_type = 0; 821 } 822 return pcmcia_register_driver(&pcmciamtd_driver); 823 } 824 825 826 static void __exit exit_pcmciamtd(void) 827 { 828 DEBUG(1, DRIVER_DESC " unloading"); 829 pcmcia_unregister_driver(&pcmciamtd_driver); 830 } 831 832 module_init(init_pcmciamtd); 833 module_exit(exit_pcmciamtd); 834