Version:  2.0.40 2.2.26 2.4.37 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15

Linux/drivers/mtd/maps/pcmciamtd.c

  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 
 18 #include <pcmcia/cistpl.h>
 19 #include <pcmcia/ds.h>
 20 
 21 #include <linux/mtd/map.h>
 22 #include <linux/mtd/mtd.h>
 23 
 24 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg)
 25 
 26 #define DRIVER_DESC     "PCMCIA Flash memory card driver"
 27 
 28 /* Size of the PCMCIA address space: 26 bits = 64 MB */
 29 #define MAX_PCMCIA_ADDR 0x4000000
 30 
 31 struct pcmciamtd_dev {
 32         struct pcmcia_device    *p_dev;
 33         caddr_t         win_base;       /* ioremapped address of PCMCIA window */
 34         unsigned int    win_size;       /* size of window */
 35         unsigned int    offset;         /* offset into card the window currently points at */
 36         struct map_info pcmcia_map;
 37         struct mtd_info *mtd_info;
 38         int             vpp;
 39         char            mtd_name[sizeof(struct cistpl_vers_1_t)];
 40 };
 41 
 42 
 43 /* Module parameters */
 44 
 45 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */
 46 static int bankwidth = 2;
 47 
 48 /* Speed of memory accesses, in ns */
 49 static int mem_speed;
 50 
 51 /* Force the size of an SRAM card */
 52 static int force_size;
 53 
 54 /* Force Vpp */
 55 static int vpp;
 56 
 57 /* Set Vpp */
 58 static int setvpp;
 59 
 60 /* Force card to be treated as FLASH, ROM or RAM */
 61 static int mem_type;
 62 
 63 MODULE_LICENSE("GPL");
 64 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
 65 MODULE_DESCRIPTION(DRIVER_DESC);
 66 module_param(bankwidth, int, 0);
 67 MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)");
 68 module_param(mem_speed, int, 0);
 69 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns");
 70 module_param(force_size, int, 0);
 71 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)");
 72 module_param(setvpp, int, 0);
 73 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)");
 74 module_param(vpp, int, 0);
 75 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)");
 76 module_param(mem_type, int, 0);
 77 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)");
 78 
 79 
 80 /* read/write{8,16} copy_{from,to} routines with window remapping
 81  * to access whole card
 82  */
 83 static caddr_t remap_window(struct map_info *map, unsigned long to)
 84 {
 85         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 86         struct resource *win = (struct resource *) map->map_priv_2;
 87         unsigned int offset;
 88         int ret;
 89 
 90         if (!pcmcia_dev_present(dev->p_dev)) {
 91                 pr_debug("device removed\n");
 92                 return 0;
 93         }
 94 
 95         offset = to & ~(dev->win_size-1);
 96         if (offset != dev->offset) {
 97                 pr_debug("Remapping window from 0x%8.8x to 0x%8.8x\n",
 98                       dev->offset, offset);
 99                 ret = pcmcia_map_mem_page(dev->p_dev, win, offset);
100                 if (ret != 0)
101                         return NULL;
102                 dev->offset = offset;
103         }
104         return dev->win_base + (to & (dev->win_size-1));
105 }
106 
107 
108 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs)
109 {
110         caddr_t addr;
111         map_word d = {{0}};
112 
113         addr = remap_window(map, ofs);
114         if(!addr)
115                 return d;
116 
117         d.x[0] = readb(addr);
118         pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n", ofs, addr, d.x[0]);
119         return d;
120 }
121 
122 
123 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs)
124 {
125         caddr_t addr;
126         map_word d = {{0}};
127 
128         addr = remap_window(map, ofs);
129         if(!addr)
130                 return d;
131 
132         d.x[0] = readw(addr);
133         pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n", ofs, addr, d.x[0]);
134         return d;
135 }
136 
137 
138 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len)
139 {
140         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
141         unsigned long win_size = dev->win_size;
142 
143         pr_debug("to = %p from = %lu len = %zd\n", to, from, len);
144         while(len) {
145                 int toread = win_size - (from & (win_size-1));
146                 caddr_t addr;
147 
148                 if(toread > len)
149                         toread = len;
150 
151                 addr = remap_window(map, from);
152                 if(!addr)
153                         return;
154 
155                 pr_debug("memcpy from %p to %p len = %d\n", addr, to, toread);
156                 memcpy_fromio(to, addr, toread);
157                 len -= toread;
158                 to += toread;
159                 from += toread;
160         }
161 }
162 
163 
164 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr)
165 {
166         caddr_t addr = remap_window(map, adr);
167 
168         if(!addr)
169                 return;
170 
171         pr_debug("adr = 0x%08lx (%p)  data = 0x%02lx\n", adr, addr, d.x[0]);
172         writeb(d.x[0], addr);
173 }
174 
175 
176 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr)
177 {
178         caddr_t addr = remap_window(map, adr);
179         if(!addr)
180                 return;
181 
182         pr_debug("adr = 0x%08lx (%p)  data = 0x%04lx\n", adr, addr, d.x[0]);
183         writew(d.x[0], addr);
184 }
185 
186 
187 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len)
188 {
189         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
190         unsigned long win_size = dev->win_size;
191 
192         pr_debug("to = %lu from = %p len = %zd\n", to, from, len);
193         while(len) {
194                 int towrite = win_size - (to & (win_size-1));
195                 caddr_t addr;
196 
197                 if(towrite > len)
198                         towrite = len;
199 
200                 addr = remap_window(map, to);
201                 if(!addr)
202                         return;
203 
204                 pr_debug("memcpy from %p to %p len = %d\n", from, addr, towrite);
205                 memcpy_toio(addr, from, towrite);
206                 len -= towrite;
207                 to += towrite;
208                 from += towrite;
209         }
210 }
211 
212 
213 /* read/write{8,16} copy_{from,to} routines with direct access */
214 
215 #define DEV_REMOVED(x)  (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev)))
216 
217 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs)
218 {
219         caddr_t win_base = (caddr_t)map->map_priv_2;
220         map_word d = {{0}};
221 
222         if(DEV_REMOVED(map))
223                 return d;
224 
225         d.x[0] = readb(win_base + ofs);
226         pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n",
227               ofs, win_base + ofs, d.x[0]);
228         return d;
229 }
230 
231 
232 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs)
233 {
234         caddr_t win_base = (caddr_t)map->map_priv_2;
235         map_word d = {{0}};
236 
237         if(DEV_REMOVED(map))
238                 return d;
239 
240         d.x[0] = readw(win_base + ofs);
241         pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n",
242               ofs, win_base + ofs, d.x[0]);
243         return d;
244 }
245 
246 
247 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
248 {
249         caddr_t win_base = (caddr_t)map->map_priv_2;
250 
251         if(DEV_REMOVED(map))
252                 return;
253 
254         pr_debug("to = %p from = %lu len = %zd\n", to, from, len);
255         memcpy_fromio(to, win_base + from, len);
256 }
257 
258 
259 static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr)
260 {
261         caddr_t win_base = (caddr_t)map->map_priv_2;
262 
263         if(DEV_REMOVED(map))
264                 return;
265 
266         pr_debug("adr = 0x%08lx (%p)  data = 0x%02lx\n",
267               adr, win_base + adr, d.x[0]);
268         writeb(d.x[0], win_base + adr);
269 }
270 
271 
272 static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr)
273 {
274         caddr_t win_base = (caddr_t)map->map_priv_2;
275 
276         if(DEV_REMOVED(map))
277                 return;
278 
279         pr_debug("adr = 0x%08lx (%p)  data = 0x%04lx\n",
280               adr, win_base + adr, d.x[0]);
281         writew(d.x[0], win_base + adr);
282 }
283 
284 
285 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
286 {
287         caddr_t win_base = (caddr_t)map->map_priv_2;
288 
289         if(DEV_REMOVED(map))
290                 return;
291 
292         pr_debug("to = %lu from = %p len = %zd\n", to, from, len);
293         memcpy_toio(win_base + to, from, len);
294 }
295 
296 
297 static DEFINE_SPINLOCK(pcmcia_vpp_lock);
298 static int pcmcia_vpp_refcnt;
299 static void pcmciamtd_set_vpp(struct map_info *map, int on)
300 {
301         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
302         struct pcmcia_device *link = dev->p_dev;
303         unsigned long flags;
304 
305         pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp);
306         spin_lock_irqsave(&pcmcia_vpp_lock, flags);
307         if (on) {
308                 if (++pcmcia_vpp_refcnt == 1)   /* first nested 'on' */
309                         pcmcia_fixup_vpp(link, dev->vpp);
310         } else {
311                 if (--pcmcia_vpp_refcnt == 0)   /* last nested 'off' */
312                         pcmcia_fixup_vpp(link, 0);
313         }
314         spin_unlock_irqrestore(&pcmcia_vpp_lock, flags);
315 }
316 
317 
318 static void pcmciamtd_release(struct pcmcia_device *link)
319 {
320         struct pcmciamtd_dev *dev = link->priv;
321 
322         pr_debug("link = 0x%p\n", link);
323 
324         if (link->resource[2]->end) {
325                 if(dev->win_base) {
326                         iounmap(dev->win_base);
327                         dev->win_base = NULL;
328                 }
329         }
330         pcmcia_disable_device(link);
331 }
332 
333 
334 static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev,
335                                 tuple_t *tuple,
336                                 void *priv_data)
337 {
338         cisparse_t parse;
339 
340         if (!pcmcia_parse_tuple(tuple, &parse)) {
341                 cistpl_format_t *t = &parse.format;
342                 (void)t; /* Shut up, gcc */
343                 pr_debug("Format type: %u, Error Detection: %u, offset = %u, length =%u\n",
344                         t->type, t->edc, t->offset, t->length);
345         }
346         return -ENOSPC;
347 }
348 
349 static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev,
350                                 tuple_t *tuple,
351                                 void *priv_data)
352 {
353         cisparse_t parse;
354         int i;
355 
356         if (!pcmcia_parse_tuple(tuple, &parse)) {
357                 cistpl_jedec_t *t = &parse.jedec;
358                 for (i = 0; i < t->nid; i++)
359                         pr_debug("JEDEC: 0x%02x 0x%02x\n",
360                               t->id[i].mfr, t->id[i].info);
361         }
362         return -ENOSPC;
363 }
364 
365 static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev,
366                                 tuple_t *tuple,
367                                 void *priv_data)
368 {
369         struct pcmciamtd_dev *dev = priv_data;
370         cisparse_t parse;
371         cistpl_device_t *t = &parse.device;
372         int i;
373 
374         if (pcmcia_parse_tuple(tuple, &parse))
375                 return -EINVAL;
376 
377         pr_debug("Common memory:\n");
378         dev->pcmcia_map.size = t->dev[0].size;
379         /* from here on: DEBUG only */
380         for (i = 0; i < t->ndev; i++) {
381                 pr_debug("Region %d, type = %u\n", i, t->dev[i].type);
382                 pr_debug("Region %d, wp = %u\n", i, t->dev[i].wp);
383                 pr_debug("Region %d, speed = %u ns\n", i, t->dev[i].speed);
384                 pr_debug("Region %d, size = %u bytes\n", i, t->dev[i].size);
385         }
386         return 0;
387 }
388 
389 static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev,
390                                 tuple_t *tuple,
391                                 void *priv_data)
392 {
393         struct pcmciamtd_dev *dev = priv_data;
394         cisparse_t parse;
395         cistpl_device_geo_t *t = &parse.device_geo;
396         int i;
397 
398         if (pcmcia_parse_tuple(tuple, &parse))
399                 return -EINVAL;
400 
401         dev->pcmcia_map.bankwidth = t->geo[0].buswidth;
402         /* from here on: DEBUG only */
403         for (i = 0; i < t->ngeo; i++) {
404                 pr_debug("region: %d bankwidth = %u\n", i, t->geo[i].buswidth);
405                 pr_debug("region: %d erase_block = %u\n", i, t->geo[i].erase_block);
406                 pr_debug("region: %d read_block = %u\n", i, t->geo[i].read_block);
407                 pr_debug("region: %d write_block = %u\n", i, t->geo[i].write_block);
408                 pr_debug("region: %d partition = %u\n", i, t->geo[i].partition);
409                 pr_debug("region: %d interleave = %u\n", i, t->geo[i].interleave);
410         }
411         return 0;
412 }
413 
414 
415 static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name)
416 {
417         int i;
418 
419         if (p_dev->prod_id[0]) {
420                 dev->mtd_name[0] = '\0';
421                 for (i = 0; i < 4; i++) {
422                         if (i)
423                                 strcat(dev->mtd_name, " ");
424                         if (p_dev->prod_id[i])
425                                 strcat(dev->mtd_name, p_dev->prod_id[i]);
426                 }
427                 pr_debug("Found name: %s\n", dev->mtd_name);
428         }
429 
430         pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL);
431         pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL);
432         pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev);
433         pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev);
434 
435         if(!dev->pcmcia_map.size)
436                 dev->pcmcia_map.size = MAX_PCMCIA_ADDR;
437 
438         if(!dev->pcmcia_map.bankwidth)
439                 dev->pcmcia_map.bankwidth = 2;
440 
441         if(force_size) {
442                 dev->pcmcia_map.size = force_size << 20;
443                 pr_debug("size forced to %dM\n", force_size);
444         }
445 
446         if(bankwidth) {
447                 dev->pcmcia_map.bankwidth = bankwidth;
448                 pr_debug("bankwidth forced to %d\n", bankwidth);
449         }
450 
451         dev->pcmcia_map.name = dev->mtd_name;
452         if(!dev->mtd_name[0]) {
453                 strcpy(dev->mtd_name, "PCMCIA Memory card");
454                 *new_name = 1;
455         }
456 
457         pr_debug("Device: Size: %lu Width:%d Name: %s\n",
458               dev->pcmcia_map.size,
459               dev->pcmcia_map.bankwidth << 3, dev->mtd_name);
460 }
461 
462 
463 static int pcmciamtd_config(struct pcmcia_device *link)
464 {
465         struct pcmciamtd_dev *dev = link->priv;
466         struct mtd_info *mtd = NULL;
467         int ret;
468         int i, j = 0;
469         static char *probes[] = { "jedec_probe", "cfi_probe" };
470         int new_name = 0;
471 
472         pr_debug("link=0x%p\n", link);
473 
474         card_settings(dev, link, &new_name);
475 
476         dev->pcmcia_map.phys = NO_XIP;
477         dev->pcmcia_map.copy_from = pcmcia_copy_from_remap;
478         dev->pcmcia_map.copy_to = pcmcia_copy_to_remap;
479         if (dev->pcmcia_map.bankwidth == 1) {
480                 dev->pcmcia_map.read = pcmcia_read8_remap;
481                 dev->pcmcia_map.write = pcmcia_write8_remap;
482         } else {
483                 dev->pcmcia_map.read = pcmcia_read16_remap;
484                 dev->pcmcia_map.write = pcmcia_write16_remap;
485         }
486         if(setvpp == 1)
487                 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
488 
489         /* Request a memory window for PCMCIA. Some architeures can map windows
490          * up to the maximum that PCMCIA can support (64MiB) - this is ideal and
491          * we aim for a window the size of the whole card - otherwise we try
492          * smaller windows until we succeed
493          */
494 
495         link->resource[2]->flags |=  WIN_MEMORY_TYPE_CM | WIN_ENABLE;
496         link->resource[2]->flags |= (dev->pcmcia_map.bankwidth == 1) ?
497                                         WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16;
498         link->resource[2]->start = 0;
499         link->resource[2]->end = (force_size) ? force_size << 20 :
500                                         MAX_PCMCIA_ADDR;
501         dev->win_size = 0;
502 
503         do {
504                 int ret;
505                 pr_debug("requesting window with size = %luKiB memspeed = %d\n",
506                         (unsigned long) resource_size(link->resource[2]) >> 10,
507                         mem_speed);
508                 ret = pcmcia_request_window(link, link->resource[2], mem_speed);
509                 pr_debug("ret = %d dev->win_size = %d\n", ret, dev->win_size);
510                 if(ret) {
511                         j++;
512                         link->resource[2]->start = 0;
513                         link->resource[2]->end = (force_size) ?
514                                         force_size << 20 : MAX_PCMCIA_ADDR;
515                         link->resource[2]->end >>= j;
516                 } else {
517                         pr_debug("Got window of size %luKiB\n", (unsigned long)
518                                 resource_size(link->resource[2]) >> 10);
519                         dev->win_size = resource_size(link->resource[2]);
520                         break;
521                 }
522         } while (link->resource[2]->end >= 0x1000);
523 
524         pr_debug("dev->win_size = %d\n", dev->win_size);
525 
526         if(!dev->win_size) {
527                 dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n");
528                 pcmciamtd_release(link);
529                 return -ENODEV;
530         }
531         pr_debug("Allocated a window of %dKiB\n", dev->win_size >> 10);
532 
533         /* Get write protect status */
534         dev->win_base = ioremap(link->resource[2]->start,
535                                 resource_size(link->resource[2]));
536         if(!dev->win_base) {
537                 dev_err(&dev->p_dev->dev, "ioremap(%pR) failed\n",
538                         link->resource[2]);
539                 pcmciamtd_release(link);
540                 return -ENODEV;
541         }
542         pr_debug("mapped window dev = %p @ %pR, base = %p\n",
543               dev, link->resource[2], dev->win_base);
544 
545         dev->offset = 0;
546         dev->pcmcia_map.map_priv_1 = (unsigned long)dev;
547         dev->pcmcia_map.map_priv_2 = (unsigned long)link->resource[2];
548 
549         dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp;
550         if(setvpp == 2) {
551                 link->vpp = dev->vpp;
552         } else {
553                 link->vpp = 0;
554         }
555 
556         link->config_index = 0;
557         pr_debug("Setting Configuration\n");
558         ret = pcmcia_enable_device(link);
559         if (ret != 0) {
560                 if (dev->win_base) {
561                         iounmap(dev->win_base);
562                         dev->win_base = NULL;
563                 }
564                 return -ENODEV;
565         }
566 
567         if(mem_type == 1) {
568                 mtd = do_map_probe("map_ram", &dev->pcmcia_map);
569         } else if(mem_type == 2) {
570                 mtd = do_map_probe("map_rom", &dev->pcmcia_map);
571         } else {
572                 for(i = 0; i < ARRAY_SIZE(probes); i++) {
573                         pr_debug("Trying %s\n", probes[i]);
574                         mtd = do_map_probe(probes[i], &dev->pcmcia_map);
575                         if(mtd)
576                                 break;
577 
578                         pr_debug("FAILED: %s\n", probes[i]);
579                 }
580         }
581 
582         if(!mtd) {
583                 pr_debug("Can not find an MTD\n");
584                 pcmciamtd_release(link);
585                 return -ENODEV;
586         }
587 
588         dev->mtd_info = mtd;
589         mtd->owner = THIS_MODULE;
590 
591         if(new_name) {
592                 int size = 0;
593                 char unit = ' ';
594                 /* Since we are using a default name, make it better by adding
595                  * in the size
596                  */
597                 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */
598                         size = mtd->size >> 10;
599                         unit = 'K';
600                 } else {
601                         size = mtd->size >> 20;
602                         unit = 'M';
603                 }
604                 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card");
605         }
606 
607         /* If the memory found is fits completely into the mapped PCMCIA window,
608            use the faster non-remapping read/write functions */
609         if(mtd->size <= dev->win_size) {
610                 pr_debug("Using non remapping memory functions\n");
611                 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base;
612                 if (dev->pcmcia_map.bankwidth == 1) {
613                         dev->pcmcia_map.read = pcmcia_read8;
614                         dev->pcmcia_map.write = pcmcia_write8;
615                 } else {
616                         dev->pcmcia_map.read = pcmcia_read16;
617                         dev->pcmcia_map.write = pcmcia_write16;
618                 }
619                 dev->pcmcia_map.copy_from = pcmcia_copy_from;
620                 dev->pcmcia_map.copy_to = pcmcia_copy_to;
621         }
622 
623         if (mtd_device_register(mtd, NULL, 0)) {
624                 map_destroy(mtd);
625                 dev->mtd_info = NULL;
626                 dev_err(&dev->p_dev->dev,
627                         "Could not register the MTD device\n");
628                 pcmciamtd_release(link);
629                 return -ENODEV;
630         }
631         dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name);
632         return 0;
633 }
634 
635 
636 static int pcmciamtd_suspend(struct pcmcia_device *dev)
637 {
638         pr_debug("EVENT_PM_RESUME\n");
639 
640         /* get_lock(link); */
641 
642         return 0;
643 }
644 
645 static int pcmciamtd_resume(struct pcmcia_device *dev)
646 {
647         pr_debug("EVENT_PM_SUSPEND\n");
648 
649         /* free_lock(link); */
650 
651         return 0;
652 }
653 
654 
655 static void pcmciamtd_detach(struct pcmcia_device *link)
656 {
657         struct pcmciamtd_dev *dev = link->priv;
658 
659         pr_debug("link=0x%p\n", link);
660 
661         if(dev->mtd_info) {
662                 mtd_device_unregister(dev->mtd_info);
663                 dev_info(&dev->p_dev->dev, "mtd%d: Removing\n",
664                          dev->mtd_info->index);
665                 map_destroy(dev->mtd_info);
666         }
667 
668         pcmciamtd_release(link);
669 }
670 
671 
672 static int pcmciamtd_probe(struct pcmcia_device *link)
673 {
674         struct pcmciamtd_dev *dev;
675 
676         /* Create new memory card device */
677         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
678         if (!dev) return -ENOMEM;
679         pr_debug("dev=0x%p\n", dev);
680 
681         dev->p_dev = link;
682         link->priv = dev;
683 
684         return pcmciamtd_config(link);
685 }
686 
687 static const struct pcmcia_device_id pcmciamtd_ids[] = {
688         PCMCIA_DEVICE_FUNC_ID(1),
689         PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21),
690         PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21),
691         PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a),
692         PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e),
693         PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf),
694         PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb),
695         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c),
696         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda),
697         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0),
698         PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8),
699         PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c),
700         PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0),
701         PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965),
702         PCMCIA_DEVICE_PROD_ID12("PRETEC", "  2MB SRAM CARD", 0xebf91155, 0x805360ca),
703         PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b),
704         PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad),
705         PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05),
706         PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca),
707         PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944),
708         /* the following was commented out in pcmcia-cs-3.2.7 */
709         /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */
710 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS
711         { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, },
712 #endif
713         PCMCIA_DEVICE_NULL
714 };
715 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids);
716 
717 static struct pcmcia_driver pcmciamtd_driver = {
718         .name           = "pcmciamtd",
719         .probe          = pcmciamtd_probe,
720         .remove         = pcmciamtd_detach,
721         .owner          = THIS_MODULE,
722         .id_table       = pcmciamtd_ids,
723         .suspend        = pcmciamtd_suspend,
724         .resume         = pcmciamtd_resume,
725 };
726 
727 
728 static int __init init_pcmciamtd(void)
729 {
730         if(bankwidth && bankwidth != 1 && bankwidth != 2) {
731                 info("bad bankwidth (%d), using default", bankwidth);
732                 bankwidth = 2;
733         }
734         if(force_size && (force_size < 1 || force_size > 64)) {
735                 info("bad force_size (%d), using default", force_size);
736                 force_size = 0;
737         }
738         if(mem_type && mem_type != 1 && mem_type != 2) {
739                 info("bad mem_type (%d), using default", mem_type);
740                 mem_type = 0;
741         }
742         return pcmcia_register_driver(&pcmciamtd_driver);
743 }
744 
745 
746 static void __exit exit_pcmciamtd(void)
747 {
748         pr_debug(DRIVER_DESC " unloading");
749         pcmcia_unregister_driver(&pcmciamtd_driver);
750 }
751 
752 module_init(init_pcmciamtd);
753 module_exit(exit_pcmciamtd);
754 

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