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(dev->p_dev, win, &mrq); 122 if (ret != 0) 123 return NULL; 124 dev->offset = mrq.CardOffset; 125 } 126 return dev->win_base + (to & (dev->win_size-1)); 127 } 128 129 130 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) 131 { 132 caddr_t addr; 133 map_word d = {{0}}; 134 135 addr = remap_window(map, ofs); 136 if(!addr) 137 return d; 138 139 d.x[0] = readb(addr); 140 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, addr, d.x[0]); 141 return d; 142 } 143 144 145 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) 146 { 147 caddr_t addr; 148 map_word d = {{0}}; 149 150 addr = remap_window(map, ofs); 151 if(!addr) 152 return d; 153 154 d.x[0] = readw(addr); 155 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, addr, d.x[0]); 156 return d; 157 } 158 159 160 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) 161 { 162 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 163 unsigned long win_size = dev->win_size; 164 165 DEBUG(3, "to = %p from = %lu len = %u", to, from, len); 166 while(len) { 167 int toread = win_size - (from & (win_size-1)); 168 caddr_t addr; 169 170 if(toread > len) 171 toread = len; 172 173 addr = remap_window(map, from); 174 if(!addr) 175 return; 176 177 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); 178 memcpy_fromio(to, addr, toread); 179 len -= toread; 180 to += toread; 181 from += toread; 182 } 183 } 184 185 186 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) 187 { 188 caddr_t addr = remap_window(map, adr); 189 190 if(!addr) 191 return; 192 193 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, addr, d.x[0]); 194 writeb(d.x[0], addr); 195 } 196 197 198 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) 199 { 200 caddr_t addr = remap_window(map, adr); 201 if(!addr) 202 return; 203 204 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, addr, d.x[0]); 205 writew(d.x[0], addr); 206 } 207 208 209 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) 210 { 211 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; 212 unsigned long win_size = dev->win_size; 213 214 DEBUG(3, "to = %lu from = %p len = %u", to, from, len); 215 while(len) { 216 int towrite = win_size - (to & (win_size-1)); 217 caddr_t addr; 218 219 if(towrite > len) 220 towrite = len; 221 222 addr = remap_window(map, to); 223 if(!addr) 224 return; 225 226 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); 227 memcpy_toio(addr, from, towrite); 228 len -= towrite; 229 to += towrite; 230 from += towrite; 231 } 232 } 233 234 235 /* read/write{8,16} copy_{from,to} routines with direct access */ 236 237 #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) 238 239 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) 240 { 241 caddr_t win_base = (caddr_t)map->map_priv_2; 242 map_word d = {{0}}; 243 244 if(DEV_REMOVED(map)) 245 return d; 246 247 d.x[0] = readb(win_base + ofs); 248 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, win_base + ofs, d.x[0]); 249 return d; 250 } 251 252 253 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) 254 { 255 caddr_t win_base = (caddr_t)map->map_priv_2; 256 map_word d = {{0}}; 257 258 if(DEV_REMOVED(map)) 259 return d; 260 261 d.x[0] = readw(win_base + ofs); 262 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", 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 = %u", to, from, len); 275 memcpy_fromio(to, win_base + from, len); 276 } 277 278 279 static void pcmcia_write8(struct map_info *map, u8 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%02x", adr, win_base + adr, d); 287 writeb(d, win_base + adr); 288 } 289 290 291 static void pcmcia_write16(struct map_info *map, u16 d, unsigned long adr) 292 { 293 caddr_t win_base = (caddr_t)map->map_priv_2; 294 295 if(DEV_REMOVED(map)) 296 return; 297 298 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, win_base + adr, d); 299 writew(d, 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 = %u", 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 pcmcia_release_window(link, link->win); 348 } 349 pcmcia_disable_device(link); 350 } 351 352 353 #ifdef CONFIG_MTD_DEBUG 354 static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, 355 tuple_t *tuple, 356 void *priv_data) 357 { 358 cisparse_t parse; 359 360 if (!pcmcia_parse_tuple(tuple, &parse)) { 361 cistpl_format_t *t = &parse.format; 362 (void)t; /* Shut up, gcc */ 363 DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", 364 t->type, t->edc, t->offset, t->length); 365 } 366 return -ENOSPC; 367 } 368 369 static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, 370 tuple_t *tuple, 371 void *priv_data) 372 { 373 cisparse_t parse; 374 int i; 375 376 if (!pcmcia_parse_tuple(tuple, &parse)) { 377 cistpl_jedec_t *t = &parse.jedec; 378 for (i = 0; i < t->nid; i++) 379 DEBUG(2, "JEDEC: 0x%02x 0x%02x", 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 *link, 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, dev->pcmcia_map.bankwidth << 3, dev->mtd_name); 481 } 482 483 484 /* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event 485 * is received, to configure the PCMCIA socket, and to make the 486 * MTD device available to the system. 487 */ 488 489 static int pcmciamtd_config(struct pcmcia_device *link) 490 { 491 struct pcmciamtd_dev *dev = link->priv; 492 struct mtd_info *mtd = NULL; 493 cs_status_t status; 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 upto the maximum 518 that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the 519 whole card - otherwise we try smaller windows until we succeed */ 520 521 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE; 522 req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; 523 req.Base = 0; 524 req.AccessSpeed = mem_speed; 525 link->win = (window_handle_t)link; 526 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR; 527 dev->win_size = 0; 528 529 do { 530 int ret; 531 DEBUG(2, "requesting window with size = %dKiB memspeed = %d", 532 req.Size >> 10, req.AccessSpeed); 533 ret = pcmcia_request_window(link, &req, &link->win); 534 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); 535 if(ret) { 536 req.Size >>= 1; 537 } else { 538 DEBUG(2, "Got window of size %dKiB", req.Size >> 10); 539 dev->win_size = req.Size; 540 break; 541 } 542 } while(req.Size >= 0x1000); 543 544 DEBUG(2, "dev->win_size = %d", dev->win_size); 545 546 if(!dev->win_size) { 547 err("Cant allocate memory window"); 548 pcmciamtd_release(link); 549 return -ENODEV; 550 } 551 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); 552 553 /* Get write protect status */ 554 DEBUG(2, "window handle = 0x%8.8lx", (unsigned long)link->win); 555 dev->win_base = ioremap(req.Base, req.Size); 556 if(!dev->win_base) { 557 err("ioremap(%lu, %u) failed", req.Base, req.Size); 558 pcmciamtd_release(link); 559 return -ENODEV; 560 } 561 DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x", 562 dev, req.Base, dev->win_base, req.Size); 563 564 dev->offset = 0; 565 dev->pcmcia_map.map_priv_1 = (unsigned long)dev; 566 dev->pcmcia_map.map_priv_2 = (unsigned long)link->win; 567 568 dev->vpp = (vpp) ? vpp : link->socket.socket.Vpp; 569 link->conf.Attributes = 0; 570 if(setvpp == 2) { 571 link->conf.Vpp = dev->vpp; 572 } else { 573 link->conf.Vpp = 0; 574 } 575 576 link->conf.IntType = INT_MEMORY; 577 link->conf.ConfigIndex = 0; 578 DEBUG(2, "Setting Configuration"); 579 ret = pcmcia_request_configuration(link, &link->conf); 580 if (ret != 0) { 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 failed: 656 err("CS Error, exiting"); 657 pcmciamtd_release(link); 658 return -ENODEV; 659 } 660 661 662 static int pcmciamtd_suspend(struct pcmcia_device *dev) 663 { 664 DEBUG(2, "EVENT_PM_RESUME"); 665 666 /* get_lock(link); */ 667 668 return 0; 669 } 670 671 static int pcmciamtd_resume(struct pcmcia_device *dev) 672 { 673 DEBUG(2, "EVENT_PM_SUSPEND"); 674 675 /* free_lock(link); */ 676 677 return 0; 678 } 679 680 681 /* This deletes a driver "instance". The device is de-registered 682 * with Card Services. If it has been released, all local data 683 * structures are freed. Otherwise, the structures will be freed 684 * when the device is released. 685 */ 686 687 static void pcmciamtd_detach(struct pcmcia_device *link) 688 { 689 struct pcmciamtd_dev *dev = link->priv; 690 691 DEBUG(3, "link=0x%p", link); 692 693 if(dev->mtd_info) { 694 del_mtd_device(dev->mtd_info); 695 map_destroy(dev->mtd_info); 696 info("mtd%d: Removed", dev->mtd_info->index); 697 } 698 699 pcmciamtd_release(link); 700 } 701 702 703 /* pcmciamtd_attach() creates an "instance" of the driver, allocating 704 * local data structures for one device. The device is registered 705 * with Card Services. 706 */ 707 708 static int pcmciamtd_probe(struct pcmcia_device *link) 709 { 710 struct pcmciamtd_dev *dev; 711 712 /* Create new memory card device */ 713 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 714 if (!dev) return -ENOMEM; 715 DEBUG(1, "dev=0x%p", dev); 716 717 dev->p_dev = link; 718 link->priv = dev; 719 720 link->conf.Attributes = 0; 721 link->conf.IntType = INT_MEMORY; 722 723 return pcmciamtd_config(link); 724 } 725 726 static struct pcmcia_device_id pcmciamtd_ids[] = { 727 PCMCIA_DEVICE_FUNC_ID(1), 728 PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), 729 PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), 730 PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), 731 PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), 732 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), 733 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), 734 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), 735 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), 736 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), 737 PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), 738 PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), 739 PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), 740 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), 741 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), 742 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), 743 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), 744 /* the following was commented out in pcmcia-cs-3.2.7 */ 745 /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ 746 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS 747 { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, 748 #endif 749 PCMCIA_DEVICE_NULL 750 }; 751 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); 752 753 static struct pcmcia_driver pcmciamtd_driver = { 754 .drv = { 755 .name = "pcmciamtd" 756 }, 757 .probe = pcmciamtd_probe, 758 .remove = pcmciamtd_detach, 759 .owner = THIS_MODULE, 760 .id_table = pcmciamtd_ids, 761 .suspend = pcmciamtd_suspend, 762 .resume = pcmciamtd_resume, 763 }; 764 765 766 static int __init init_pcmciamtd(void) 767 { 768 info(DRIVER_DESC); 769 770 if(bankwidth && bankwidth != 1 && bankwidth != 2) { 771 info("bad bankwidth (%d), using default", bankwidth); 772 bankwidth = 2; 773 } 774 if(force_size && (force_size < 1 || force_size > 64)) { 775 info("bad force_size (%d), using default", force_size); 776 force_size = 0; 777 } 778 if(mem_type && mem_type != 1 && mem_type != 2) { 779 info("bad mem_type (%d), using default", mem_type); 780 mem_type = 0; 781 } 782 return pcmcia_register_driver(&pcmciamtd_driver); 783 } 784 785 786 static void __exit exit_pcmciamtd(void) 787 { 788 DEBUG(1, DRIVER_DESC " unloading"); 789 pcmcia_unregister_driver(&pcmciamtd_driver); 790 } 791 792 module_init(init_pcmciamtd); 793 module_exit(exit_pcmciamtd); 794