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x86, bts: memory accounting
[linux-2.6/verdex.git] / drivers / mtd / maps / pcmciamtd.c
blobd600c2deff73824a70edb5e36f29157f4a36e16a
1 /*
2 * pcmciamtd.c - MTD driver for PCMCIA flash memory cards
3 *
4 * Author: Simon Evans <spse@secret.org.uk>
5 *
6 * Copyright (C) 2002 Simon Evans
7 *
8 * Licence: GPL
9 *
10 */
11
12 #include <linux/module.h>
13 #include <linux/slab.h>
14 #include <linux/timer.h>
15 #include <linux/init.h>
16 #include <asm/io.h>
17 #include <asm/system.h>
18
19 #include <pcmcia/cs_types.h>
20 #include <pcmcia/cs.h>
21 #include <pcmcia/cistpl.h>
22 #include <pcmcia/ds.h>
23
24 #include <linux/mtd/map.h>
25 #include <linux/mtd/mtd.h>
26
27 #ifdef CONFIG_MTD_DEBUG
28 static int debug = CONFIG_MTD_DEBUG_VERBOSE;
29 module_param(debug, int, 0);
30 MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy");
31 #undef DEBUG
32 #define DEBUG(n, format, arg...) \
33 if (n <= debug) { \
34 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \
35 }
36
37 #else
38 #undef DEBUG
39 #define DEBUG(n, arg...)
40 static const int debug = 0;
41 #endif
42
43 #define err(format, arg...) printk(KERN_ERR "pcmciamtd: " format "\n" , ## arg)
44 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg)
45 #define warn(format, arg...) printk(KERN_WARNING "pcmciamtd: " format "\n" , ## arg)
46
47
48 #define DRIVER_DESC "PCMCIA Flash memory card driver"
49
50 /* Size of the PCMCIA address space: 26 bits = 64 MB */
51 #define MAX_PCMCIA_ADDR 0x4000000
52
53 struct pcmciamtd_dev {
54 struct pcmcia_device *p_dev;
55 dev_node_t node; /* device node */
56 caddr_t win_base; /* ioremapped address of PCMCIA window */
57 unsigned int win_size; /* size of window */
58 unsigned int offset; /* offset into card the window currently points at */
59 struct map_info pcmcia_map;
60 struct mtd_info *mtd_info;
61 int vpp;
62 char mtd_name[sizeof(struct cistpl_vers_1_t)];
63 };
64
65
66 /* Module parameters */
67
68 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */
69 static int bankwidth = 2;
70
71 /* Speed of memory accesses, in ns */
72 static int mem_speed;
73
74 /* Force the size of an SRAM card */
75 static int force_size;
76
77 /* Force Vpp */
78 static int vpp;
79
80 /* Set Vpp */
81 static int setvpp;
82
83 /* Force card to be treated as FLASH, ROM or RAM */
84 static int mem_type;
85
86 MODULE_LICENSE("GPL");
87 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
88 MODULE_DESCRIPTION(DRIVER_DESC);
89 module_param(bankwidth, int, 0);
90 MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)");
91 module_param(mem_speed, int, 0);
92 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns");
93 module_param(force_size, int, 0);
94 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)");
95 module_param(setvpp, int, 0);
96 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)");
97 module_param(vpp, int, 0);
98 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)");
99 module_param(mem_type, int, 0);
100 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)");
101
102
103 /* read/write{8,16} copy_{from,to} routines with window remapping to access whole card */
104 static caddr_t remap_window(struct map_info *map, unsigned long to)
105 {
106 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
107 window_handle_t win = (window_handle_t)map->map_priv_2;
108 memreq_t mrq;
109 int ret;
110
111 if (!pcmcia_dev_present(dev->p_dev)) {
112 DEBUG(1, "device removed");
113 return 0;
114 }
115
116 mrq.CardOffset = to & ~(dev->win_size-1);
117 if(mrq.CardOffset != dev->offset) {
118 DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x",
119 dev->offset, mrq.CardOffset);
120 mrq.Page = 0;
121 ret = pcmcia_map_mem_page(win, &mrq);
122 if (ret != 0) {
123 cs_error(dev->p_dev, MapMemPage, ret);
124 return NULL;
125 }
126 dev->offset = mrq.CardOffset;
127 }
128 return dev->win_base + (to & (dev->win_size-1));
129 }
130
131
132 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs)
133 {
134 caddr_t addr;
135 map_word d = {{0}};
136
137 addr = remap_window(map, ofs);
138 if(!addr)
139 return d;
140
141 d.x[0] = readb(addr);
142 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, addr, d.x[0]);
143 return d;
144 }
145
146
147 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs)
148 {
149 caddr_t addr;
150 map_word d = {{0}};
151
152 addr = remap_window(map, ofs);
153 if(!addr)
154 return d;
155
156 d.x[0] = readw(addr);
157 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, addr, d.x[0]);
158 return d;
159 }
160
161
162 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len)
163 {
164 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
165 unsigned long win_size = dev->win_size;
166
167 DEBUG(3, "to = %p from = %lu len = %u", to, from, len);
168 while(len) {
169 int toread = win_size - (from & (win_size-1));
170 caddr_t addr;
171
172 if(toread > len)
173 toread = len;
174
175 addr = remap_window(map, from);
176 if(!addr)
177 return;
178
179 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread);
180 memcpy_fromio(to, addr, toread);
181 len -= toread;
182 to += toread;
183 from += toread;
184 }
185 }
186
187
188 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr)
189 {
190 caddr_t addr = remap_window(map, adr);
191
192 if(!addr)
193 return;
194
195 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, addr, d.x[0]);
196 writeb(d.x[0], addr);
197 }
198
199
200 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr)
201 {
202 caddr_t addr = remap_window(map, adr);
203 if(!addr)
204 return;
205
206 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, addr, d.x[0]);
207 writew(d.x[0], addr);
208 }
209
210
211 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len)
212 {
213 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
214 unsigned long win_size = dev->win_size;
215
216 DEBUG(3, "to = %lu from = %p len = %u", to, from, len);
217 while(len) {
218 int towrite = win_size - (to & (win_size-1));
219 caddr_t addr;
220
221 if(towrite > len)
222 towrite = len;
223
224 addr = remap_window(map, to);
225 if(!addr)
226 return;
227
228 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite);
229 memcpy_toio(addr, from, towrite);
230 len -= towrite;
231 to += towrite;
232 from += towrite;
233 }
234 }
235
236
237 /* read/write{8,16} copy_{from,to} routines with direct access */
238
239 #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev)))
240
241 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs)
242 {
243 caddr_t win_base = (caddr_t)map->map_priv_2;
244 map_word d = {{0}};
245
246 if(DEV_REMOVED(map))
247 return d;
248
249 d.x[0] = readb(win_base + ofs);
250 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, win_base + ofs, d.x[0]);
251 return d;
252 }
253
254
255 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs)
256 {
257 caddr_t win_base = (caddr_t)map->map_priv_2;
258 map_word d = {{0}};
259
260 if(DEV_REMOVED(map))
261 return d;
262
263 d.x[0] = readw(win_base + ofs);
264 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, win_base + ofs, d.x[0]);
265 return d;
266 }
267
268
269 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
270 {
271 caddr_t win_base = (caddr_t)map->map_priv_2;
272
273 if(DEV_REMOVED(map))
274 return;
275
276 DEBUG(3, "to = %p from = %lu len = %u", to, from, len);
277 memcpy_fromio(to, win_base + from, len);
278 }
279
280
281 static void pcmcia_write8(struct map_info *map, u8 d, unsigned long adr)
282 {
283 caddr_t win_base = (caddr_t)map->map_priv_2;
284
285 if(DEV_REMOVED(map))
286 return;
287
288 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, win_base + adr, d);
289 writeb(d, win_base + adr);
290 }
291
292
293 static void pcmcia_write16(struct map_info *map, u16 d, unsigned long adr)
294 {
295 caddr_t win_base = (caddr_t)map->map_priv_2;
296
297 if(DEV_REMOVED(map))
298 return;
299
300 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, win_base + adr, d);
301 writew(d, win_base + adr);
302 }
303
304
305 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
306 {
307 caddr_t win_base = (caddr_t)map->map_priv_2;
308
309 if(DEV_REMOVED(map))
310 return;
311
312 DEBUG(3, "to = %lu from = %p len = %u", to, from, len);
313 memcpy_toio(win_base + to, from, len);
314 }
315
316
317 static void pcmciamtd_set_vpp(struct map_info *map, int on)
318 {
319 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
320 struct pcmcia_device *link = dev->p_dev;
321 modconf_t mod;
322 int ret;
323
324 mod.Attributes = CONF_VPP1_CHANGE_VALID | CONF_VPP2_CHANGE_VALID;
325 mod.Vcc = 0;
326 mod.Vpp1 = mod.Vpp2 = on ? dev->vpp : 0;
327
328 DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp);
329 ret = pcmcia_modify_configuration(link, &mod);
330 if (ret != 0)
331 cs_error(link, ModifyConfiguration, ret);
332 }
333
334
335 /* After a card is removed, pcmciamtd_release() will unregister the
336 * device, and release the PCMCIA configuration. If the device is
337 * still open, this will be postponed until it is closed.
338 */
339
340 static void pcmciamtd_release(struct pcmcia_device *link)
341 {
342 struct pcmciamtd_dev *dev = link->priv;
343
344 DEBUG(3, "link = 0x%p", link);
345
346 if (link->win) {
347 if(dev->win_base) {
348 iounmap(dev->win_base);
349 dev->win_base = NULL;
350 }
351 pcmcia_release_window(link->win);
352 }
353 pcmcia_disable_device(link);
354 }
355
356
357 static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *link, int *new_name)
358 {
359 int rc;
360 tuple_t tuple;
361 cisparse_t parse;
362 u_char buf[64];
363
364 tuple.Attributes = 0;
365 tuple.TupleData = (cisdata_t *)buf;
366 tuple.TupleDataMax = sizeof(buf);
367 tuple.TupleOffset = 0;
368 tuple.DesiredTuple = RETURN_FIRST_TUPLE;
369
370 rc = pcmcia_get_first_tuple(link, &tuple);
371 while (rc == 0) {
372 rc = pcmcia_get_tuple_data(link, &tuple);
373 if (rc != 0) {
374 cs_error(link, GetTupleData, rc);
375 break;
376 }
377 rc = pcmcia_parse_tuple(&tuple, &parse);
378 if (rc != 0) {
379 cs_error(link, ParseTuple, rc);
380 break;
381 }
382
383 switch(tuple.TupleCode) {
384 case CISTPL_FORMAT: {
385 cistpl_format_t *t = &parse.format;
386 (void)t; /* Shut up, gcc */
387 DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u",
388 t->type, t->edc, t->offset, t->length);
389 break;
390
391 }
392
393 case CISTPL_DEVICE: {
394 cistpl_device_t *t = &parse.device;
395 int i;
396 DEBUG(2, "Common memory:");
397 dev->pcmcia_map.size = t->dev[0].size;
398 for(i = 0; i < t->ndev; i++) {
399 DEBUG(2, "Region %d, type = %u", i, t->dev[i].type);
400 DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp);
401 DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed);
402 DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size);
403 }
404 break;
405 }
406
407 case CISTPL_VERS_1: {
408 cistpl_vers_1_t *t = &parse.version_1;
409 int i;
410 if(t->ns) {
411 dev->mtd_name[0] = '\0';
412 for(i = 0; i < t->ns; i++) {
413 if(i)
414 strcat(dev->mtd_name, " ");
415 strcat(dev->mtd_name, t->str+t->ofs[i]);
416 }
417 }
418 DEBUG(2, "Found name: %s", dev->mtd_name);
419 break;
420 }
421
422 case CISTPL_JEDEC_C: {
423 cistpl_jedec_t *t = &parse.jedec;
424 int i;
425 for(i = 0; i < t->nid; i++) {
426 DEBUG(2, "JEDEC: 0x%02x 0x%02x", t->id[i].mfr, t->id[i].info);
427 }
428 break;
429 }
430
431 case CISTPL_DEVICE_GEO: {
432 cistpl_device_geo_t *t = &parse.device_geo;
433 int i;
434 dev->pcmcia_map.bankwidth = t->geo[0].buswidth;
435 for(i = 0; i < t->ngeo; i++) {
436 DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth);
437 DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block);
438 DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block);
439 DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block);
440 DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition);
441 DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave);
442 }
443 break;
444 }
445
446 default:
447 DEBUG(2, "Unknown tuple code %d", tuple.TupleCode);
448 }
449
450 rc = pcmcia_get_next_tuple(link, &tuple);
451 }
452 if(!dev->pcmcia_map.size)
453 dev->pcmcia_map.size = MAX_PCMCIA_ADDR;
454
455 if(!dev->pcmcia_map.bankwidth)
456 dev->pcmcia_map.bankwidth = 2;
457
458 if(force_size) {
459 dev->pcmcia_map.size = force_size << 20;
460 DEBUG(2, "size forced to %dM", force_size);
461 }
462
463 if(bankwidth) {
464 dev->pcmcia_map.bankwidth = bankwidth;
465 DEBUG(2, "bankwidth forced to %d", bankwidth);
466 }
467
468 dev->pcmcia_map.name = dev->mtd_name;
469 if(!dev->mtd_name[0]) {
470 strcpy(dev->mtd_name, "PCMCIA Memory card");
471 *new_name = 1;
472 }
473
474 DEBUG(1, "Device: Size: %lu Width:%d Name: %s",
475 dev->pcmcia_map.size, dev->pcmcia_map.bankwidth << 3, dev->mtd_name);
476 }
477
478
479 /* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event
480 * is received, to configure the PCMCIA socket, and to make the
481 * MTD device available to the system.
482 */
483
484 #define CS_CHECK(fn, ret) \
485 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
486
487 static int pcmciamtd_config(struct pcmcia_device *link)
488 {
489 struct pcmciamtd_dev *dev = link->priv;
490 struct mtd_info *mtd = NULL;
491 cs_status_t status;
492 win_req_t req;
493 int last_ret = 0, last_fn = 0;
494 int ret;
495 int i;
496 static char *probes[] = { "jedec_probe", "cfi_probe" };
497 int new_name = 0;
498
499 DEBUG(3, "link=0x%p", link);
500
501 card_settings(dev, link, &new_name);
502
503 dev->pcmcia_map.phys = NO_XIP;
504 dev->pcmcia_map.copy_from = pcmcia_copy_from_remap;
505 dev->pcmcia_map.copy_to = pcmcia_copy_to_remap;
506 if (dev->pcmcia_map.bankwidth == 1) {
507 dev->pcmcia_map.read = pcmcia_read8_remap;
508 dev->pcmcia_map.write = pcmcia_write8_remap;
509 } else {
510 dev->pcmcia_map.read = pcmcia_read16_remap;
511 dev->pcmcia_map.write = pcmcia_write16_remap;
512 }
513 if(setvpp == 1)
514 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
515
516 /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum
517 that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the
518 whole card - otherwise we try smaller windows until we succeed */
519
520 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE;
521 req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16;
522 req.Base = 0;
523 req.AccessSpeed = mem_speed;
524 link->win = (window_handle_t)link;
525 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR;
526 dev->win_size = 0;
527
528 do {
529 int ret;
530 DEBUG(2, "requesting window with size = %dKiB memspeed = %d",
531 req.Size >> 10, req.AccessSpeed);
532 ret = pcmcia_request_window(&link, &req, &link->win);
533 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size);
534 if(ret) {
535 req.Size >>= 1;
536 } else {
537 DEBUG(2, "Got window of size %dKiB", req.Size >> 10);
538 dev->win_size = req.Size;
539 break;
540 }
541 } while(req.Size >= 0x1000);
542
543 DEBUG(2, "dev->win_size = %d", dev->win_size);
544
545 if(!dev->win_size) {
546 err("Cant allocate memory window");
547 pcmciamtd_release(link);
548 return -ENODEV;
549 }
550 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10);
551
552 /* Get write protect status */
553 DEBUG(2, "window handle = 0x%8.8lx", (unsigned long)link->win);
554 dev->win_base = ioremap(req.Base, req.Size);
555 if(!dev->win_base) {
556 err("ioremap(%lu, %u) failed", req.Base, req.Size);
557 pcmciamtd_release(link);
558 return -ENODEV;
559 }
560 DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x",
561 dev, req.Base, dev->win_base, req.Size);
562
563 dev->offset = 0;
564 dev->pcmcia_map.map_priv_1 = (unsigned long)dev;
565 dev->pcmcia_map.map_priv_2 = (unsigned long)link->win;
566
567 dev->vpp = (vpp) ? vpp : link->socket.socket.Vpp;
568 link->conf.Attributes = 0;
569 if(setvpp == 2) {
570 link->conf.Vpp = dev->vpp;
571 } else {
572 link->conf.Vpp = 0;
573 }
574
575 link->conf.IntType = INT_MEMORY;
576 link->conf.ConfigIndex = 0;
577 DEBUG(2, "Setting Configuration");
578 ret = pcmcia_request_configuration(link, &link->conf);
579 if (ret != 0) {
580 cs_error(link, RequestConfiguration, ret);
581 if (dev->win_base) {
582 iounmap(dev->win_base);
583 dev->win_base = NULL;
584 }
585 return -ENODEV;
586 }
587
588 if(mem_type == 1) {
589 mtd = do_map_probe("map_ram", &dev->pcmcia_map);
590 } else if(mem_type == 2) {
591 mtd = do_map_probe("map_rom", &dev->pcmcia_map);
592 } else {
593 for(i = 0; i < ARRAY_SIZE(probes); i++) {
594 DEBUG(1, "Trying %s", probes[i]);
595 mtd = do_map_probe(probes[i], &dev->pcmcia_map);
596 if(mtd)
597 break;
598
599 DEBUG(1, "FAILED: %s", probes[i]);
600 }
601 }
602
603 if(!mtd) {
604 DEBUG(1, "Cant find an MTD");
605 pcmciamtd_release(link);
606 return -ENODEV;
607 }
608
609 dev->mtd_info = mtd;
610 mtd->owner = THIS_MODULE;
611
612 if(new_name) {
613 int size = 0;
614 char unit = ' ';
615 /* Since we are using a default name, make it better by adding in the
616 size */
617 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */
618 size = mtd->size >> 10;
619 unit = 'K';
620 } else {
621 size = mtd->size >> 20;
622 unit = 'M';
623 }
624 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card");
625 }
626
627 /* If the memory found is fits completely into the mapped PCMCIA window,
628 use the faster non-remapping read/write functions */
629 if(mtd->size <= dev->win_size) {
630 DEBUG(1, "Using non remapping memory functions");
631 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base;
632 if (dev->pcmcia_map.bankwidth == 1) {
633 dev->pcmcia_map.read = pcmcia_read8;
634 dev->pcmcia_map.write = pcmcia_write8;
635 } else {
636 dev->pcmcia_map.read = pcmcia_read16;
637 dev->pcmcia_map.write = pcmcia_write16;
638 }
639 dev->pcmcia_map.copy_from = pcmcia_copy_from;
640 dev->pcmcia_map.copy_to = pcmcia_copy_to;
641 }
642
643 if(add_mtd_device(mtd)) {
644 map_destroy(mtd);
645 dev->mtd_info = NULL;
646 err("Couldnt register MTD device");
647 pcmciamtd_release(link);
648 return -ENODEV;
649 }
650 snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index);
651 info("mtd%d: %s", mtd->index, mtd->name);
652 link->dev_node = &dev->node;
653 return 0;
654
655 cs_failed:
656 cs_error(link, last_fn, last_ret);
657 err("CS Error, exiting");
658 pcmciamtd_release(link);
659 return -ENODEV;
660 }
661
662
663 static int pcmciamtd_suspend(struct pcmcia_device *dev)
664 {
665 DEBUG(2, "EVENT_PM_RESUME");
666
667 /* get_lock(link); */
668
669 return 0;
670 }
671
672 static int pcmciamtd_resume(struct pcmcia_device *dev)
673 {
674 DEBUG(2, "EVENT_PM_SUSPEND");
675
676 /* free_lock(link); */
677
678 return 0;
679 }
680
681
682 /* This deletes a driver "instance". The device is de-registered
683 * with Card Services. If it has been released, all local data
684 * structures are freed. Otherwise, the structures will be freed
685 * when the device is released.
686 */
687
688 static void pcmciamtd_detach(struct pcmcia_device *link)
689 {
690 struct pcmciamtd_dev *dev = link->priv;
691
692 DEBUG(3, "link=0x%p", link);
693
694 if(dev->mtd_info) {
695 del_mtd_device(dev->mtd_info);
696 map_destroy(dev->mtd_info);
697 info("mtd%d: Removed", dev->mtd_info->index);
698 }
699
700 pcmciamtd_release(link);
701 }
702
703
704 /* pcmciamtd_attach() creates an "instance" of the driver, allocating
705 * local data structures for one device. The device is registered
706 * with Card Services.
707 */
708
709 static int pcmciamtd_probe(struct pcmcia_device *link)
710 {
711 struct pcmciamtd_dev *dev;
712
713 /* Create new memory card device */
714 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
715 if (!dev) return -ENOMEM;
716 DEBUG(1, "dev=0x%p", dev);
717
718 dev->p_dev = link;
719 link->priv = dev;
720
721 link->conf.Attributes = 0;
722 link->conf.IntType = INT_MEMORY;
723
724 return pcmciamtd_config(link);
725 }
726
727 static struct pcmcia_device_id pcmciamtd_ids[] = {
728 PCMCIA_DEVICE_FUNC_ID(1),
729 PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21),
730 PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21),
731 PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a),
732 PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e),
733 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf),
734 PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb),
735 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c),
736 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda),
737 PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0),
738 PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8),
739 PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c),
740 PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0),
741 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b),
742 PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad),
743 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca),
744 PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944),
745 /* the following was commented out in pcmcia-cs-3.2.7 */
746 /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */
747 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS
748 { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, },
749 #endif
750 PCMCIA_DEVICE_NULL
751 };
752 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids);
753
754 static struct pcmcia_driver pcmciamtd_driver = {
755 .drv = {
756 .name = "pcmciamtd"
757 },
758 .probe = pcmciamtd_probe,
759 .remove = pcmciamtd_detach,
760 .owner = THIS_MODULE,
761 .id_table = pcmciamtd_ids,
762 .suspend = pcmciamtd_suspend,
763 .resume = pcmciamtd_resume,
764 };
765
766
767 static int __init init_pcmciamtd(void)
768 {
769 info(DRIVER_DESC);
770
771 if(bankwidth && bankwidth != 1 && bankwidth != 2) {
772 info("bad bankwidth (%d), using default", bankwidth);
773 bankwidth = 2;
774 }
775 if(force_size && (force_size < 1 || force_size > 64)) {
776 info("bad force_size (%d), using default", force_size);
777 force_size = 0;
778 }
779 if(mem_type && mem_type != 1 && mem_type != 2) {
780 info("bad mem_type (%d), using default", mem_type);
781 mem_type = 0;
782 }
783 return pcmcia_register_driver(&pcmciamtd_driver);
784 }
785
786
787 static void __exit exit_pcmciamtd(void)
788 {
789 DEBUG(1, DRIVER_DESC " unloading");
790 pcmcia_unregister_driver(&pcmciamtd_driver);
791 }
792
793 module_init(init_pcmciamtd);
794 module_exit(exit_pcmciamtd);
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