?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Linux 2.6.33-rc6
[cris-mirror.git] / drivers / mtd / maps / pcmciamtd.c
blob689d6a79ffc0ed239b3ccdbae50e035b723c7351
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);
CRIS linux kernel tree