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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 | void __iomem *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 void __iomem *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 NULL; | |
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 | void __iomem *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 | void __iomem *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 | void __iomem *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 | void __iomem *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 | void __iomem *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 | void __iomem *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 | void __iomem *win_base = (void __iomem *)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 | void __iomem *win_base = (void __iomem *)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 | void __iomem *win_base = (void __iomem *)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 | void __iomem *win_base = (void __iomem *)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 | void __iomem *win_base = (void __iomem *)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 | void __iomem *win_base = (void __iomem *)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_MUTEX(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 | ||
304 | pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp); | |
305 | mutex_lock(&pcmcia_vpp_lock); | |
306 | if (on) { | |
307 | if (++pcmcia_vpp_refcnt == 1) /* first nested 'on' */ | |
308 | pcmcia_fixup_vpp(link, dev->vpp); | |
309 | } else { | |
310 | if (--pcmcia_vpp_refcnt == 0) /* last nested 'off' */ | |
311 | pcmcia_fixup_vpp(link, 0); | |
312 | } | |
313 | mutex_unlock(&pcmcia_vpp_lock); | |
314 | } | |
315 | ||
316 | ||
317 | static void pcmciamtd_release(struct pcmcia_device *link) | |
318 | { | |
319 | struct pcmciamtd_dev *dev = link->priv; | |
320 | ||
321 | pr_debug("link = 0x%p\n", link); | |
322 | ||
323 | if (link->resource[2]->end) { | |
324 | if(dev->win_base) { | |
325 | iounmap(dev->win_base); | |
326 | dev->win_base = NULL; | |
327 | } | |
328 | } | |
329 | pcmcia_disable_device(link); | |
330 | } | |
331 | ||
332 | ||
333 | static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, | |
334 | tuple_t *tuple, | |
335 | void *priv_data) | |
336 | { | |
337 | cisparse_t parse; | |
338 | ||
339 | if (!pcmcia_parse_tuple(tuple, &parse)) { | |
340 | cistpl_format_t *t = &parse.format; | |
341 | (void)t; /* Shut up, gcc */ | |
342 | pr_debug("Format type: %u, Error Detection: %u, offset = %u, length =%u\n", | |
343 | t->type, t->edc, t->offset, t->length); | |
344 | } | |
345 | return -ENOSPC; | |
346 | } | |
347 | ||
348 | static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, | |
349 | tuple_t *tuple, | |
350 | void *priv_data) | |
351 | { | |
352 | cisparse_t parse; | |
353 | int i; | |
354 | ||
355 | if (!pcmcia_parse_tuple(tuple, &parse)) { | |
356 | cistpl_jedec_t *t = &parse.jedec; | |
357 | for (i = 0; i < t->nid; i++) | |
358 | pr_debug("JEDEC: 0x%02x 0x%02x\n", | |
359 | t->id[i].mfr, t->id[i].info); | |
360 | } | |
361 | return -ENOSPC; | |
362 | } | |
363 | ||
364 | static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, | |
365 | tuple_t *tuple, | |
366 | void *priv_data) | |
367 | { | |
368 | struct pcmciamtd_dev *dev = priv_data; | |
369 | cisparse_t parse; | |
370 | cistpl_device_t *t = &parse.device; | |
371 | int i; | |
372 | ||
373 | if (pcmcia_parse_tuple(tuple, &parse)) | |
374 | return -EINVAL; | |
375 | ||
376 | pr_debug("Common memory:\n"); | |
377 | dev->pcmcia_map.size = t->dev[0].size; | |
378 | /* from here on: DEBUG only */ | |
379 | for (i = 0; i < t->ndev; i++) { | |
380 | pr_debug("Region %d, type = %u\n", i, t->dev[i].type); | |
381 | pr_debug("Region %d, wp = %u\n", i, t->dev[i].wp); | |
382 | pr_debug("Region %d, speed = %u ns\n", i, t->dev[i].speed); | |
383 | pr_debug("Region %d, size = %u bytes\n", i, t->dev[i].size); | |
384 | } | |
385 | return 0; | |
386 | } | |
387 | ||
388 | static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev, | |
389 | tuple_t *tuple, | |
390 | void *priv_data) | |
391 | { | |
392 | struct pcmciamtd_dev *dev = priv_data; | |
393 | cisparse_t parse; | |
394 | cistpl_device_geo_t *t = &parse.device_geo; | |
395 | int i; | |
396 | ||
397 | if (pcmcia_parse_tuple(tuple, &parse)) | |
398 | return -EINVAL; | |
399 | ||
400 | dev->pcmcia_map.bankwidth = t->geo[0].buswidth; | |
401 | /* from here on: DEBUG only */ | |
402 | for (i = 0; i < t->ngeo; i++) { | |
403 | pr_debug("region: %d bankwidth = %u\n", i, t->geo[i].buswidth); | |
404 | pr_debug("region: %d erase_block = %u\n", i, t->geo[i].erase_block); | |
405 | pr_debug("region: %d read_block = %u\n", i, t->geo[i].read_block); | |
406 | pr_debug("region: %d write_block = %u\n", i, t->geo[i].write_block); | |
407 | pr_debug("region: %d partition = %u\n", i, t->geo[i].partition); | |
408 | pr_debug("region: %d interleave = %u\n", i, t->geo[i].interleave); | |
409 | } | |
410 | return 0; | |
411 | } | |
412 | ||
413 | ||
414 | static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name) | |
415 | { | |
416 | int i; | |
417 | ||
418 | if (p_dev->prod_id[0]) { | |
419 | dev->mtd_name[0] = '\0'; | |
420 | for (i = 0; i < 4; i++) { | |
421 | if (i) | |
422 | strcat(dev->mtd_name, " "); | |
423 | if (p_dev->prod_id[i]) | |
424 | strcat(dev->mtd_name, p_dev->prod_id[i]); | |
425 | } | |
426 | pr_debug("Found name: %s\n", dev->mtd_name); | |
427 | } | |
428 | ||
429 | pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL); | |
430 | pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL); | |
431 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev); | |
432 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev); | |
433 | ||
434 | if(!dev->pcmcia_map.size) | |
435 | dev->pcmcia_map.size = MAX_PCMCIA_ADDR; | |
436 | ||
437 | if(!dev->pcmcia_map.bankwidth) | |
438 | dev->pcmcia_map.bankwidth = 2; | |
439 | ||
440 | if(force_size) { | |
441 | dev->pcmcia_map.size = force_size << 20; | |
442 | pr_debug("size forced to %dM\n", force_size); | |
443 | } | |
444 | ||
445 | if(bankwidth) { | |
446 | dev->pcmcia_map.bankwidth = bankwidth; | |
447 | pr_debug("bankwidth forced to %d\n", bankwidth); | |
448 | } | |
449 | ||
450 | dev->pcmcia_map.name = dev->mtd_name; | |
451 | if(!dev->mtd_name[0]) { | |
452 | strcpy(dev->mtd_name, "PCMCIA Memory card"); | |
453 | *new_name = 1; | |
454 | } | |
455 | ||
456 | pr_debug("Device: Size: %lu Width:%d Name: %s\n", | |
457 | dev->pcmcia_map.size, | |
458 | dev->pcmcia_map.bankwidth << 3, dev->mtd_name); | |
459 | } | |
460 | ||
461 | ||
462 | static int pcmciamtd_config(struct pcmcia_device *link) | |
463 | { | |
464 | struct pcmciamtd_dev *dev = link->priv; | |
465 | struct mtd_info *mtd = NULL; | |
466 | int ret; | |
467 | int i, j = 0; | |
468 | static char *probes[] = { "jedec_probe", "cfi_probe" }; | |
469 | int new_name = 0; | |
470 | ||
471 | pr_debug("link=0x%p\n", link); | |
472 | ||
473 | card_settings(dev, link, &new_name); | |
474 | ||
475 | dev->pcmcia_map.phys = NO_XIP; | |
476 | dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; | |
477 | dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; | |
478 | if (dev->pcmcia_map.bankwidth == 1) { | |
479 | dev->pcmcia_map.read = pcmcia_read8_remap; | |
480 | dev->pcmcia_map.write = pcmcia_write8_remap; | |
481 | } else { | |
482 | dev->pcmcia_map.read = pcmcia_read16_remap; | |
483 | dev->pcmcia_map.write = pcmcia_write16_remap; | |
484 | } | |
485 | if(setvpp == 1) | |
486 | dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; | |
487 | ||
488 | /* Request a memory window for PCMCIA. Some architeures can map windows | |
489 | * up to the maximum that PCMCIA can support (64MiB) - this is ideal and | |
490 | * we aim for a window the size of the whole card - otherwise we try | |
491 | * smaller windows until we succeed | |
492 | */ | |
493 | ||
494 | link->resource[2]->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE; | |
495 | link->resource[2]->flags |= (dev->pcmcia_map.bankwidth == 1) ? | |
496 | WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; | |
497 | link->resource[2]->start = 0; | |
498 | link->resource[2]->end = (force_size) ? force_size << 20 : | |
499 | MAX_PCMCIA_ADDR; | |
500 | dev->win_size = 0; | |
501 | ||
502 | do { | |
503 | int ret; | |
504 | pr_debug("requesting window with size = %luKiB memspeed = %d\n", | |
505 | (unsigned long) resource_size(link->resource[2]) >> 10, | |
506 | mem_speed); | |
507 | ret = pcmcia_request_window(link, link->resource[2], mem_speed); | |
508 | pr_debug("ret = %d dev->win_size = %d\n", ret, dev->win_size); | |
509 | if(ret) { | |
510 | j++; | |
511 | link->resource[2]->start = 0; | |
512 | link->resource[2]->end = (force_size) ? | |
513 | force_size << 20 : MAX_PCMCIA_ADDR; | |
514 | link->resource[2]->end >>= j; | |
515 | } else { | |
516 | pr_debug("Got window of size %luKiB\n", (unsigned long) | |
517 | resource_size(link->resource[2]) >> 10); | |
518 | dev->win_size = resource_size(link->resource[2]); | |
519 | break; | |
520 | } | |
521 | } while (link->resource[2]->end >= 0x1000); | |
522 | ||
523 | pr_debug("dev->win_size = %d\n", dev->win_size); | |
524 | ||
525 | if(!dev->win_size) { | |
526 | dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n"); | |
527 | pcmciamtd_release(link); | |
528 | return -ENODEV; | |
529 | } | |
530 | pr_debug("Allocated a window of %dKiB\n", dev->win_size >> 10); | |
531 | ||
532 | /* Get write protect status */ | |
533 | dev->win_base = ioremap(link->resource[2]->start, | |
534 | resource_size(link->resource[2])); | |
535 | if(!dev->win_base) { | |
536 | dev_err(&dev->p_dev->dev, "ioremap(%pR) failed\n", | |
537 | link->resource[2]); | |
538 | pcmciamtd_release(link); | |
539 | return -ENODEV; | |
540 | } | |
541 | pr_debug("mapped window dev = %p @ %pR, base = %p\n", | |
542 | dev, link->resource[2], dev->win_base); | |
543 | ||
544 | dev->offset = 0; | |
545 | dev->pcmcia_map.map_priv_1 = (unsigned long)dev; | |
546 | dev->pcmcia_map.map_priv_2 = (unsigned long)link->resource[2]; | |
547 | ||
548 | dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp; | |
549 | if(setvpp == 2) { | |
550 | link->vpp = dev->vpp; | |
551 | } else { | |
552 | link->vpp = 0; | |
553 | } | |
554 | ||
555 | link->config_index = 0; | |
556 | pr_debug("Setting Configuration\n"); | |
557 | ret = pcmcia_enable_device(link); | |
558 | if (ret != 0) { | |
559 | if (dev->win_base) { | |
560 | iounmap(dev->win_base); | |
561 | dev->win_base = NULL; | |
562 | } | |
563 | return -ENODEV; | |
564 | } | |
565 | ||
566 | if(mem_type == 1) { | |
567 | mtd = do_map_probe("map_ram", &dev->pcmcia_map); | |
568 | } else if(mem_type == 2) { | |
569 | mtd = do_map_probe("map_rom", &dev->pcmcia_map); | |
570 | } else { | |
571 | for(i = 0; i < ARRAY_SIZE(probes); i++) { | |
572 | pr_debug("Trying %s\n", probes[i]); | |
573 | mtd = do_map_probe(probes[i], &dev->pcmcia_map); | |
574 | if(mtd) | |
575 | break; | |
576 | ||
577 | pr_debug("FAILED: %s\n", probes[i]); | |
578 | } | |
579 | } | |
580 | ||
581 | if(!mtd) { | |
582 | pr_debug("Can not find an MTD\n"); | |
583 | pcmciamtd_release(link); | |
584 | return -ENODEV; | |
585 | } | |
586 | ||
587 | dev->mtd_info = mtd; | |
588 | mtd->owner = THIS_MODULE; | |
589 | ||
590 | if(new_name) { | |
591 | int size = 0; | |
592 | char unit = ' '; | |
593 | /* Since we are using a default name, make it better by adding | |
594 | * in the size | |
595 | */ | |
596 | if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ | |
597 | size = mtd->size >> 10; | |
598 | unit = 'K'; | |
599 | } else { | |
600 | size = mtd->size >> 20; | |
601 | unit = 'M'; | |
602 | } | |
603 | snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); | |
604 | } | |
605 | ||
606 | /* If the memory found is fits completely into the mapped PCMCIA window, | |
607 | use the faster non-remapping read/write functions */ | |
608 | if(mtd->size <= dev->win_size) { | |
609 | pr_debug("Using non remapping memory functions\n"); | |
610 | dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; | |
611 | if (dev->pcmcia_map.bankwidth == 1) { | |
612 | dev->pcmcia_map.read = pcmcia_read8; | |
613 | dev->pcmcia_map.write = pcmcia_write8; | |
614 | } else { | |
615 | dev->pcmcia_map.read = pcmcia_read16; | |
616 | dev->pcmcia_map.write = pcmcia_write16; | |
617 | } | |
618 | dev->pcmcia_map.copy_from = pcmcia_copy_from; | |
619 | dev->pcmcia_map.copy_to = pcmcia_copy_to; | |
620 | } | |
621 | ||
622 | if (mtd_device_register(mtd, NULL, 0)) { | |
623 | map_destroy(mtd); | |
624 | dev->mtd_info = NULL; | |
625 | dev_err(&dev->p_dev->dev, | |
626 | "Could not register the MTD device\n"); | |
627 | pcmciamtd_release(link); | |
628 | return -ENODEV; | |
629 | } | |
630 | dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name); | |
631 | return 0; | |
632 | } | |
633 | ||
634 | ||
635 | static int pcmciamtd_suspend(struct pcmcia_device *dev) | |
636 | { | |
637 | pr_debug("EVENT_PM_RESUME\n"); | |
638 | ||
639 | /* get_lock(link); */ | |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
644 | static int pcmciamtd_resume(struct pcmcia_device *dev) | |
645 | { | |
646 | pr_debug("EVENT_PM_SUSPEND\n"); | |
647 | ||
648 | /* free_lock(link); */ | |
649 | ||
650 | return 0; | |
651 | } | |
652 | ||
653 | ||
654 | static void pcmciamtd_detach(struct pcmcia_device *link) | |
655 | { | |
656 | struct pcmciamtd_dev *dev = link->priv; | |
657 | ||
658 | pr_debug("link=0x%p\n", link); | |
659 | ||
660 | if(dev->mtd_info) { | |
661 | mtd_device_unregister(dev->mtd_info); | |
662 | dev_info(&dev->p_dev->dev, "mtd%d: Removing\n", | |
663 | dev->mtd_info->index); | |
664 | map_destroy(dev->mtd_info); | |
665 | } | |
666 | ||
667 | pcmciamtd_release(link); | |
668 | } | |
669 | ||
670 | ||
671 | static int pcmciamtd_probe(struct pcmcia_device *link) | |
672 | { | |
673 | struct pcmciamtd_dev *dev; | |
674 | ||
675 | /* Create new memory card device */ | |
676 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
677 | if (!dev) return -ENOMEM; | |
678 | pr_debug("dev=0x%p\n", dev); | |
679 | ||
680 | dev->p_dev = link; | |
681 | link->priv = dev; | |
682 | ||
683 | return pcmciamtd_config(link); | |
684 | } | |
685 | ||
686 | static const struct pcmcia_device_id pcmciamtd_ids[] = { | |
687 | PCMCIA_DEVICE_FUNC_ID(1), | |
688 | PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21), | |
689 | PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21), | |
690 | PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a), | |
691 | PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e), | |
692 | PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf), | |
693 | PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb), | |
694 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c), | |
695 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda), | |
696 | PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0), | |
697 | PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8), | |
698 | PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c), | |
699 | PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0), | |
700 | PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965), | |
701 | PCMCIA_DEVICE_PROD_ID12("PRETEC", " 2MB SRAM CARD", 0xebf91155, 0x805360ca), | |
702 | PCMCIA_DEVICE_PROD_ID12("PRETEC", " 4MB SRAM CARD", 0xebf91155, 0x20b6bf17), | |
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); |