Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
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 | ||
1da177e4 LT |
19 | #include <pcmcia/cs.h> |
20 | #include <pcmcia/cistpl.h> | |
21 | #include <pcmcia/ds.h> | |
22 | ||
23 | #include <linux/mtd/map.h> | |
24 | #include <linux/mtd/mtd.h> | |
25 | ||
26 | #ifdef CONFIG_MTD_DEBUG | |
27 | static int debug = CONFIG_MTD_DEBUG_VERBOSE; | |
8d3b33f6 | 28 | module_param(debug, int, 0); |
1da177e4 LT |
29 | MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy"); |
30 | #undef DEBUG | |
31 | #define DEBUG(n, format, arg...) \ | |
32 | if (n <= debug) { \ | |
cb53b3b9 | 33 | printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \ |
1da177e4 LT |
34 | } |
35 | ||
36 | #else | |
37 | #undef DEBUG | |
38 | #define DEBUG(n, arg...) | |
39 | static const int debug = 0; | |
40 | #endif | |
41 | ||
1da177e4 | 42 | #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) |
1da177e4 LT |
43 | |
44 | #define DRIVER_DESC "PCMCIA Flash memory card driver" | |
1da177e4 LT |
45 | |
46 | /* Size of the PCMCIA address space: 26 bits = 64 MB */ | |
47 | #define MAX_PCMCIA_ADDR 0x4000000 | |
48 | ||
49 | struct pcmciamtd_dev { | |
fd238232 | 50 | struct pcmcia_device *p_dev; |
1da177e4 LT |
51 | caddr_t win_base; /* ioremapped address of PCMCIA window */ |
52 | unsigned int win_size; /* size of window */ | |
53 | unsigned int offset; /* offset into card the window currently points at */ | |
54 | struct map_info pcmcia_map; | |
55 | struct mtd_info *mtd_info; | |
56 | int vpp; | |
57 | char mtd_name[sizeof(struct cistpl_vers_1_t)]; | |
58 | }; | |
59 | ||
60 | ||
1da177e4 LT |
61 | /* Module parameters */ |
62 | ||
63 | /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */ | |
64 | static int bankwidth = 2; | |
65 | ||
66 | /* Speed of memory accesses, in ns */ | |
67 | static int mem_speed; | |
68 | ||
69 | /* Force the size of an SRAM card */ | |
70 | static int force_size; | |
71 | ||
72 | /* Force Vpp */ | |
73 | static int vpp; | |
74 | ||
75 | /* Set Vpp */ | |
76 | static int setvpp; | |
77 | ||
78 | /* Force card to be treated as FLASH, ROM or RAM */ | |
79 | static int mem_type; | |
80 | ||
81 | MODULE_LICENSE("GPL"); | |
82 | MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); | |
83 | MODULE_DESCRIPTION(DRIVER_DESC); | |
8d3b33f6 | 84 | module_param(bankwidth, int, 0); |
1da177e4 | 85 | MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); |
8d3b33f6 | 86 | module_param(mem_speed, int, 0); |
1da177e4 | 87 | MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); |
8d3b33f6 | 88 | module_param(force_size, int, 0); |
1da177e4 | 89 | MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); |
8d3b33f6 | 90 | module_param(setvpp, int, 0); |
1da177e4 | 91 | MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); |
8d3b33f6 | 92 | module_param(vpp, int, 0); |
1da177e4 | 93 | MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); |
8d3b33f6 | 94 | module_param(mem_type, int, 0); |
1da177e4 LT |
95 | MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)"); |
96 | ||
97 | ||
9bdde162 AK |
98 | /* read/write{8,16} copy_{from,to} routines with window remapping |
99 | * to access whole card | |
100 | */ | |
1da177e4 LT |
101 | static caddr_t remap_window(struct map_info *map, unsigned long to) |
102 | { | |
103 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
cdb13808 | 104 | struct resource *win = (struct resource *) map->map_priv_2; |
b5cb259e | 105 | unsigned int offset; |
1da177e4 LT |
106 | int ret; |
107 | ||
e2d40963 DB |
108 | if (!pcmcia_dev_present(dev->p_dev)) { |
109 | DEBUG(1, "device removed"); | |
1da177e4 LT |
110 | return 0; |
111 | } | |
112 | ||
b5cb259e DB |
113 | offset = to & ~(dev->win_size-1); |
114 | if (offset != dev->offset) { | |
1da177e4 | 115 | DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x", |
b5cb259e DB |
116 | dev->offset, offset); |
117 | ret = pcmcia_map_mem_page(dev->p_dev, win, offset); | |
9b44de20 | 118 | if (ret != 0) |
1da177e4 | 119 | return NULL; |
b5cb259e | 120 | dev->offset = offset; |
1da177e4 LT |
121 | } |
122 | return dev->win_base + (to & (dev->win_size-1)); | |
123 | } | |
124 | ||
125 | ||
126 | static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) | |
127 | { | |
128 | caddr_t addr; | |
129 | map_word d = {{0}}; | |
130 | ||
131 | addr = remap_window(map, ofs); | |
132 | if(!addr) | |
133 | return d; | |
134 | ||
135 | d.x[0] = readb(addr); | |
f6763c98 | 136 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", ofs, addr, d.x[0]); |
1da177e4 LT |
137 | return d; |
138 | } | |
139 | ||
140 | ||
141 | static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) | |
142 | { | |
143 | caddr_t addr; | |
144 | map_word d = {{0}}; | |
145 | ||
146 | addr = remap_window(map, ofs); | |
147 | if(!addr) | |
148 | return d; | |
149 | ||
150 | d.x[0] = readw(addr); | |
f6763c98 | 151 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", ofs, addr, d.x[0]); |
1da177e4 LT |
152 | return d; |
153 | } | |
154 | ||
155 | ||
156 | static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) | |
157 | { | |
158 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
159 | unsigned long win_size = dev->win_size; | |
160 | ||
11c93605 | 161 | DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); |
1da177e4 LT |
162 | while(len) { |
163 | int toread = win_size - (from & (win_size-1)); | |
164 | caddr_t addr; | |
165 | ||
166 | if(toread > len) | |
167 | toread = len; | |
69f34c98 | 168 | |
1da177e4 LT |
169 | addr = remap_window(map, from); |
170 | if(!addr) | |
171 | return; | |
172 | ||
173 | DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); | |
174 | memcpy_fromio(to, addr, toread); | |
175 | len -= toread; | |
176 | to += toread; | |
177 | from += toread; | |
178 | } | |
179 | } | |
180 | ||
181 | ||
182 | static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) | |
183 | { | |
184 | caddr_t addr = remap_window(map, adr); | |
185 | ||
186 | if(!addr) | |
187 | return; | |
188 | ||
f6763c98 | 189 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", adr, addr, d.x[0]); |
1da177e4 LT |
190 | writeb(d.x[0], addr); |
191 | } | |
192 | ||
193 | ||
194 | static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) | |
195 | { | |
196 | caddr_t addr = remap_window(map, adr); | |
197 | if(!addr) | |
198 | return; | |
199 | ||
f6763c98 | 200 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", adr, addr, d.x[0]); |
1da177e4 LT |
201 | writew(d.x[0], addr); |
202 | } | |
203 | ||
204 | ||
205 | static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) | |
206 | { | |
207 | struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; | |
208 | unsigned long win_size = dev->win_size; | |
209 | ||
11c93605 | 210 | DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); |
1da177e4 LT |
211 | while(len) { |
212 | int towrite = win_size - (to & (win_size-1)); | |
213 | caddr_t addr; | |
214 | ||
215 | if(towrite > len) | |
216 | towrite = len; | |
217 | ||
218 | addr = remap_window(map, to); | |
219 | if(!addr) | |
220 | return; | |
221 | ||
222 | DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); | |
223 | memcpy_toio(addr, from, towrite); | |
224 | len -= towrite; | |
225 | to += towrite; | |
226 | from += towrite; | |
227 | } | |
228 | } | |
229 | ||
230 | ||
231 | /* read/write{8,16} copy_{from,to} routines with direct access */ | |
232 | ||
e2d40963 | 233 | #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) |
1da177e4 LT |
234 | |
235 | static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) | |
236 | { | |
237 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
238 | map_word d = {{0}}; | |
239 | ||
240 | if(DEV_REMOVED(map)) | |
241 | return d; | |
242 | ||
243 | d.x[0] = readb(win_base + ofs); | |
9bdde162 AK |
244 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", |
245 | ofs, win_base + ofs, d.x[0]); | |
1da177e4 LT |
246 | return d; |
247 | } | |
248 | ||
249 | ||
250 | static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) | |
251 | { | |
252 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
253 | map_word d = {{0}}; | |
254 | ||
255 | if(DEV_REMOVED(map)) | |
256 | return d; | |
257 | ||
258 | d.x[0] = readw(win_base + ofs); | |
9bdde162 AK |
259 | DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", |
260 | ofs, win_base + ofs, d.x[0]); | |
1da177e4 LT |
261 | return d; |
262 | } | |
263 | ||
264 | ||
265 | static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) | |
266 | { | |
267 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
268 | ||
269 | if(DEV_REMOVED(map)) | |
270 | return; | |
271 | ||
11c93605 | 272 | DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); |
1da177e4 LT |
273 | memcpy_fromio(to, win_base + from, len); |
274 | } | |
275 | ||
276 | ||
f6763c98 | 277 | static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr) |
1da177e4 LT |
278 | { |
279 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
280 | ||
281 | if(DEV_REMOVED(map)) | |
282 | return; | |
283 | ||
9bdde162 AK |
284 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", |
285 | adr, win_base + adr, d.x[0]); | |
f6763c98 | 286 | writeb(d.x[0], win_base + adr); |
1da177e4 LT |
287 | } |
288 | ||
289 | ||
f6763c98 | 290 | static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr) |
1da177e4 LT |
291 | { |
292 | caddr_t win_base = (caddr_t)map->map_priv_2; | |
293 | ||
294 | if(DEV_REMOVED(map)) | |
295 | return; | |
296 | ||
9bdde162 AK |
297 | DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", |
298 | adr, win_base + adr, d.x[0]); | |
f6763c98 | 299 | writew(d.x[0], win_base + adr); |
1da177e4 LT |
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 | ||
11c93605 | 310 | DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); |
1da177e4 LT |
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; | |
fba395ee | 318 | struct pcmcia_device *link = dev->p_dev; |
1da177e4 LT |
319 | |
320 | DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp); | |
fb49fa53 | 321 | pcmcia_fixup_vpp(link, on ? dev->vpp : 0); |
1da177e4 LT |
322 | } |
323 | ||
324 | ||
325 | /* After a card is removed, pcmciamtd_release() will unregister the | |
326 | * device, and release the PCMCIA configuration. If the device is | |
327 | * still open, this will be postponed until it is closed. | |
328 | */ | |
329 | ||
fba395ee | 330 | static void pcmciamtd_release(struct pcmcia_device *link) |
1da177e4 LT |
331 | { |
332 | struct pcmciamtd_dev *dev = link->priv; | |
333 | ||
334 | DEBUG(3, "link = 0x%p", link); | |
335 | ||
cdb13808 | 336 | if (link->resource[2]->end) { |
1da177e4 LT |
337 | if(dev->win_base) { |
338 | iounmap(dev->win_base); | |
339 | dev->win_base = NULL; | |
340 | } | |
1da177e4 | 341 | } |
fba395ee | 342 | pcmcia_disable_device(link); |
1da177e4 LT |
343 | } |
344 | ||
345 | ||
18b61b97 DB |
346 | #ifdef CONFIG_MTD_DEBUG |
347 | static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, | |
348 | tuple_t *tuple, | |
349 | void *priv_data) | |
1da177e4 | 350 | { |
1da177e4 | 351 | cisparse_t parse; |
69f34c98 | 352 | |
18b61b97 DB |
353 | if (!pcmcia_parse_tuple(tuple, &parse)) { |
354 | cistpl_format_t *t = &parse.format; | |
355 | (void)t; /* Shut up, gcc */ | |
356 | DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", | |
357 | t->type, t->edc, t->offset, t->length); | |
358 | } | |
359 | return -ENOSPC; | |
360 | } | |
69f34c98 | 361 | |
18b61b97 DB |
362 | static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, |
363 | tuple_t *tuple, | |
364 | void *priv_data) | |
365 | { | |
366 | cisparse_t parse; | |
367 | int i; | |
69f34c98 | 368 | |
18b61b97 DB |
369 | if (!pcmcia_parse_tuple(tuple, &parse)) { |
370 | cistpl_jedec_t *t = &parse.jedec; | |
371 | for (i = 0; i < t->nid; i++) | |
9bdde162 AK |
372 | DEBUG(2, "JEDEC: 0x%02x 0x%02x", |
373 | t->id[i].mfr, t->id[i].info); | |
18b61b97 DB |
374 | } |
375 | return -ENOSPC; | |
376 | } | |
377 | #endif | |
69f34c98 | 378 | |
18b61b97 DB |
379 | static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, |
380 | tuple_t *tuple, | |
381 | void *priv_data) | |
382 | { | |
383 | struct pcmciamtd_dev *dev = priv_data; | |
384 | cisparse_t parse; | |
385 | cistpl_device_t *t = &parse.device; | |
386 | int i; | |
387 | ||
388 | if (pcmcia_parse_tuple(tuple, &parse)) | |
389 | return -EINVAL; | |
390 | ||
391 | DEBUG(2, "Common memory:"); | |
392 | dev->pcmcia_map.size = t->dev[0].size; | |
393 | /* from here on: DEBUG only */ | |
394 | for (i = 0; i < t->ndev; i++) { | |
395 | DEBUG(2, "Region %d, type = %u", i, t->dev[i].type); | |
396 | DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp); | |
397 | DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed); | |
398 | DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size); | |
399 | } | |
400 | return 0; | |
401 | } | |
69f34c98 | 402 | |
18b61b97 DB |
403 | static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev, |
404 | tuple_t *tuple, | |
405 | void *priv_data) | |
406 | { | |
407 | struct pcmciamtd_dev *dev = priv_data; | |
408 | cisparse_t parse; | |
409 | cistpl_device_geo_t *t = &parse.device_geo; | |
410 | int i; | |
411 | ||
412 | if (pcmcia_parse_tuple(tuple, &parse)) | |
413 | return -EINVAL; | |
414 | ||
415 | dev->pcmcia_map.bankwidth = t->geo[0].buswidth; | |
416 | /* from here on: DEBUG only */ | |
417 | for (i = 0; i < t->ngeo; i++) { | |
418 | DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth); | |
419 | DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block); | |
420 | DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block); | |
421 | DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block); | |
422 | DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition); | |
423 | DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave); | |
424 | } | |
425 | return 0; | |
426 | } | |
69f34c98 | 427 | |
69f34c98 | 428 | |
f6763c98 | 429 | static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name) |
18b61b97 DB |
430 | { |
431 | int i; | |
432 | ||
433 | if (p_dev->prod_id[0]) { | |
434 | dev->mtd_name[0] = '\0'; | |
435 | for (i = 0; i < 4; i++) { | |
436 | if (i) | |
437 | strcat(dev->mtd_name, " "); | |
438 | if (p_dev->prod_id[i]) | |
439 | strcat(dev->mtd_name, p_dev->prod_id[i]); | |
1da177e4 | 440 | } |
18b61b97 | 441 | DEBUG(2, "Found name: %s", dev->mtd_name); |
1da177e4 | 442 | } |
18b61b97 DB |
443 | |
444 | #ifdef CONFIG_MTD_DEBUG | |
445 | pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL); | |
446 | pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL); | |
447 | #endif | |
448 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev); | |
449 | pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev); | |
450 | ||
1da177e4 LT |
451 | if(!dev->pcmcia_map.size) |
452 | dev->pcmcia_map.size = MAX_PCMCIA_ADDR; | |
453 | ||
454 | if(!dev->pcmcia_map.bankwidth) | |
455 | dev->pcmcia_map.bankwidth = 2; | |
456 | ||
457 | if(force_size) { | |
458 | dev->pcmcia_map.size = force_size << 20; | |
459 | DEBUG(2, "size forced to %dM", force_size); | |
460 | } | |
461 | ||
462 | if(bankwidth) { | |
463 | dev->pcmcia_map.bankwidth = bankwidth; | |
464 | DEBUG(2, "bankwidth forced to %d", bankwidth); | |
69f34c98 | 465 | } |
1da177e4 LT |
466 | |
467 | dev->pcmcia_map.name = dev->mtd_name; | |
468 | if(!dev->mtd_name[0]) { | |
469 | strcpy(dev->mtd_name, "PCMCIA Memory card"); | |
470 | *new_name = 1; | |
471 | } | |
472 | ||
473 | DEBUG(1, "Device: Size: %lu Width:%d Name: %s", | |
9bdde162 AK |
474 | dev->pcmcia_map.size, |
475 | dev->pcmcia_map.bankwidth << 3, dev->mtd_name); | |
1da177e4 LT |
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 | ||
15b99ac1 | 484 | static int pcmciamtd_config(struct pcmcia_device *link) |
1da177e4 LT |
485 | { |
486 | struct pcmciamtd_dev *dev = link->priv; | |
487 | struct mtd_info *mtd = NULL; | |
1da177e4 | 488 | int ret; |
cdb13808 | 489 | int i, j = 0; |
1da177e4 | 490 | static char *probes[] = { "jedec_probe", "cfi_probe" }; |
1da177e4 LT |
491 | int new_name = 0; |
492 | ||
493 | DEBUG(3, "link=0x%p", link); | |
494 | ||
1da177e4 LT |
495 | card_settings(dev, link, &new_name); |
496 | ||
497 | dev->pcmcia_map.phys = NO_XIP; | |
498 | dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; | |
499 | dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; | |
500 | if (dev->pcmcia_map.bankwidth == 1) { | |
501 | dev->pcmcia_map.read = pcmcia_read8_remap; | |
502 | dev->pcmcia_map.write = pcmcia_write8_remap; | |
503 | } else { | |
504 | dev->pcmcia_map.read = pcmcia_read16_remap; | |
505 | dev->pcmcia_map.write = pcmcia_write16_remap; | |
506 | } | |
507 | if(setvpp == 1) | |
508 | dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; | |
509 | ||
9bdde162 AK |
510 | /* Request a memory window for PCMCIA. Some architeures can map windows |
511 | * upto the maximum that PCMCIA can support (64MiB) - this is ideal and | |
512 | * we aim for a window the size of the whole card - otherwise we try | |
513 | * smaller windows until we succeed | |
514 | */ | |
1da177e4 | 515 | |
cdb13808 DB |
516 | link->resource[2]->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE; |
517 | link->resource[2]->flags |= (dev->pcmcia_map.bankwidth == 1) ? | |
518 | WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; | |
519 | link->resource[2]->start = 0; | |
520 | link->resource[2]->end = (force_size) ? force_size << 20 : | |
521 | MAX_PCMCIA_ADDR; | |
1da177e4 LT |
522 | dev->win_size = 0; |
523 | ||
524 | do { | |
525 | int ret; | |
cdb13808 DB |
526 | DEBUG(2, "requesting window with size = %luKiB memspeed = %d", |
527 | (unsigned long) resource_size(link->resource[2]) >> 10, | |
528 | mem_speed); | |
529 | ret = pcmcia_request_window(link, link->resource[2], mem_speed); | |
1da177e4 LT |
530 | DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); |
531 | if(ret) { | |
cdb13808 DB |
532 | j++; |
533 | link->resource[2]->start = 0; | |
534 | link->resource[2]->end = (force_size) ? | |
535 | force_size << 20 : MAX_PCMCIA_ADDR; | |
536 | link->resource[2]->end >>= j; | |
1da177e4 | 537 | } else { |
cdb13808 DB |
538 | DEBUG(2, "Got window of size %luKiB", (unsigned long) |
539 | resource_size(link->resource[2]) >> 10); | |
540 | dev->win_size = resource_size(link->resource[2]); | |
1da177e4 LT |
541 | break; |
542 | } | |
cdb13808 | 543 | } while (link->resource[2]->end >= 0x1000); |
1da177e4 LT |
544 | |
545 | DEBUG(2, "dev->win_size = %d", dev->win_size); | |
546 | ||
547 | if(!dev->win_size) { | |
9bdde162 | 548 | dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n"); |
1da177e4 | 549 | pcmciamtd_release(link); |
15b99ac1 | 550 | return -ENODEV; |
1da177e4 LT |
551 | } |
552 | DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); | |
69f34c98 | 553 | |
1da177e4 | 554 | /* Get write protect status */ |
cdb13808 DB |
555 | dev->win_base = ioremap(link->resource[2]->start, |
556 | resource_size(link->resource[2])); | |
1da177e4 | 557 | if(!dev->win_base) { |
cdb13808 DB |
558 | dev_err(&dev->p_dev->dev, "ioremap(%pR) failed\n", |
559 | link->resource[2]); | |
1da177e4 | 560 | pcmciamtd_release(link); |
15b99ac1 | 561 | return -ENODEV; |
1da177e4 | 562 | } |
cdb13808 DB |
563 | DEBUG(1, "mapped window dev = %p @ %pR, base = %p", |
564 | dev, link->resource[2], dev->win_base); | |
1da177e4 LT |
565 | |
566 | dev->offset = 0; | |
567 | dev->pcmcia_map.map_priv_1 = (unsigned long)dev; | |
cdb13808 | 568 | dev->pcmcia_map.map_priv_2 = (unsigned long)link->resource[2]; |
1da177e4 | 569 | |
f6763c98 | 570 | dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp; |
1da177e4 | 571 | link->conf.Attributes = 0; |
1da177e4 | 572 | if(setvpp == 2) { |
e8405f0f | 573 | link->vpp = dev->vpp; |
1da177e4 | 574 | } else { |
e8405f0f | 575 | link->vpp = 0; |
1da177e4 LT |
576 | } |
577 | ||
1da177e4 | 578 | link->conf.ConfigIndex = 0; |
1da177e4 | 579 | DEBUG(2, "Setting Configuration"); |
fba395ee | 580 | ret = pcmcia_request_configuration(link, &link->conf); |
4c89e88b | 581 | if (ret != 0) { |
25f0c659 AL |
582 | if (dev->win_base) { |
583 | iounmap(dev->win_base); | |
584 | dev->win_base = NULL; | |
585 | } | |
15b99ac1 | 586 | return -ENODEV; |
1da177e4 LT |
587 | } |
588 | ||
589 | if(mem_type == 1) { | |
590 | mtd = do_map_probe("map_ram", &dev->pcmcia_map); | |
591 | } else if(mem_type == 2) { | |
592 | mtd = do_map_probe("map_rom", &dev->pcmcia_map); | |
593 | } else { | |
87d10f3c | 594 | for(i = 0; i < ARRAY_SIZE(probes); i++) { |
1da177e4 LT |
595 | DEBUG(1, "Trying %s", probes[i]); |
596 | mtd = do_map_probe(probes[i], &dev->pcmcia_map); | |
597 | if(mtd) | |
598 | break; | |
69f34c98 | 599 | |
1da177e4 LT |
600 | DEBUG(1, "FAILED: %s", probes[i]); |
601 | } | |
602 | } | |
69f34c98 | 603 | |
1da177e4 | 604 | if(!mtd) { |
9bdde162 | 605 | DEBUG(1, "Can not find an MTD"); |
1da177e4 | 606 | pcmciamtd_release(link); |
15b99ac1 | 607 | return -ENODEV; |
1da177e4 LT |
608 | } |
609 | ||
610 | dev->mtd_info = mtd; | |
611 | mtd->owner = THIS_MODULE; | |
612 | ||
613 | if(new_name) { | |
614 | int size = 0; | |
615 | char unit = ' '; | |
9bdde162 AK |
616 | /* Since we are using a default name, make it better by adding |
617 | * in the size | |
618 | */ | |
1da177e4 LT |
619 | if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ |
620 | size = mtd->size >> 10; | |
621 | unit = 'K'; | |
622 | } else { | |
623 | size = mtd->size >> 20; | |
624 | unit = 'M'; | |
625 | } | |
626 | snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); | |
627 | } | |
628 | ||
629 | /* If the memory found is fits completely into the mapped PCMCIA window, | |
630 | use the faster non-remapping read/write functions */ | |
631 | if(mtd->size <= dev->win_size) { | |
632 | DEBUG(1, "Using non remapping memory functions"); | |
1da177e4 LT |
633 | dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; |
634 | if (dev->pcmcia_map.bankwidth == 1) { | |
635 | dev->pcmcia_map.read = pcmcia_read8; | |
636 | dev->pcmcia_map.write = pcmcia_write8; | |
637 | } else { | |
638 | dev->pcmcia_map.read = pcmcia_read16; | |
639 | dev->pcmcia_map.write = pcmcia_write16; | |
640 | } | |
641 | dev->pcmcia_map.copy_from = pcmcia_copy_from; | |
642 | dev->pcmcia_map.copy_to = pcmcia_copy_to; | |
643 | } | |
644 | ||
645 | if(add_mtd_device(mtd)) { | |
646 | map_destroy(mtd); | |
647 | dev->mtd_info = NULL; | |
9bdde162 AK |
648 | dev_err(&dev->p_dev->dev, |
649 | "Could not register the MTD device\n"); | |
1da177e4 | 650 | pcmciamtd_release(link); |
15b99ac1 | 651 | return -ENODEV; |
1da177e4 | 652 | } |
9bdde162 | 653 | dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name); |
15b99ac1 | 654 | return 0; |
1da177e4 | 655 | |
9bdde162 | 656 | dev_err(&dev->p_dev->dev, "CS Error, exiting\n"); |
1da177e4 | 657 | pcmciamtd_release(link); |
15b99ac1 | 658 | return -ENODEV; |
1da177e4 LT |
659 | } |
660 | ||
661 | ||
98e4c28b DB |
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 | ||
1da177e4 LT |
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 | ||
fba395ee | 687 | static void pcmciamtd_detach(struct pcmcia_device *link) |
1da177e4 | 688 | { |
e2d40963 | 689 | struct pcmciamtd_dev *dev = link->priv; |
cc3b4866 | 690 | |
1da177e4 LT |
691 | DEBUG(3, "link=0x%p", link); |
692 | ||
e2d40963 DB |
693 | if(dev->mtd_info) { |
694 | del_mtd_device(dev->mtd_info); | |
9bdde162 AK |
695 | dev_info(&dev->p_dev->dev, "mtd%d: Removing\n", |
696 | dev->mtd_info->index); | |
599fb329 | 697 | map_destroy(dev->mtd_info); |
1da177e4 | 698 | } |
e2d40963 DB |
699 | |
700 | pcmciamtd_release(link); | |
1da177e4 LT |
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 | ||
15b99ac1 | 709 | static int pcmciamtd_probe(struct pcmcia_device *link) |
1da177e4 LT |
710 | { |
711 | struct pcmciamtd_dev *dev; | |
1da177e4 LT |
712 | |
713 | /* Create new memory card device */ | |
95b93a0c | 714 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
f8cfa618 | 715 | if (!dev) return -ENOMEM; |
1da177e4 LT |
716 | DEBUG(1, "dev=0x%p", dev); |
717 | ||
fba395ee | 718 | dev->p_dev = link; |
1da177e4 LT |
719 | link->priv = dev; |
720 | ||
721 | link->conf.Attributes = 0; | |
1da177e4 | 722 | |
15b99ac1 | 723 | return pcmciamtd_config(link); |
1da177e4 LT |
724 | } |
725 | ||
11d28a30 DB |
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), | |
f6763c98 | 740 | PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965), |
b2321ac3 | 741 | PCMCIA_DEVICE_PROD_ID12("PRETEC", " 2MB SRAM CARD", 0xebf91155, 0x805360ca), |
11d28a30 DB |
742 | PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b), |
743 | PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad), | |
f6763c98 | 744 | PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05), |
11d28a30 DB |
745 | PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca), |
746 | PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944), | |
747 | /* the following was commented out in pcmcia-cs-3.2.7 */ | |
748 | /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */ | |
749 | #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS | |
750 | { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, }, | |
751 | #endif | |
752 | PCMCIA_DEVICE_NULL | |
753 | }; | |
754 | MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids); | |
1da177e4 LT |
755 | |
756 | static struct pcmcia_driver pcmciamtd_driver = { | |
757 | .drv = { | |
758 | .name = "pcmciamtd" | |
759 | }, | |
15b99ac1 | 760 | .probe = pcmciamtd_probe, |
cc3b4866 | 761 | .remove = pcmciamtd_detach, |
11d28a30 DB |
762 | .owner = THIS_MODULE, |
763 | .id_table = pcmciamtd_ids, | |
98e4c28b DB |
764 | .suspend = pcmciamtd_suspend, |
765 | .resume = pcmciamtd_resume, | |
1da177e4 LT |
766 | }; |
767 | ||
768 | ||
769 | static int __init init_pcmciamtd(void) | |
770 | { | |
59018b6d | 771 | info(DRIVER_DESC); |
1da177e4 LT |
772 | |
773 | if(bankwidth && bankwidth != 1 && bankwidth != 2) { | |
774 | info("bad bankwidth (%d), using default", bankwidth); | |
775 | bankwidth = 2; | |
776 | } | |
777 | if(force_size && (force_size < 1 || force_size > 64)) { | |
778 | info("bad force_size (%d), using default", force_size); | |
779 | force_size = 0; | |
780 | } | |
781 | if(mem_type && mem_type != 1 && mem_type != 2) { | |
782 | info("bad mem_type (%d), using default", mem_type); | |
783 | mem_type = 0; | |
784 | } | |
785 | return pcmcia_register_driver(&pcmciamtd_driver); | |
786 | } | |
787 | ||
788 | ||
789 | static void __exit exit_pcmciamtd(void) | |
790 | { | |
791 | DEBUG(1, DRIVER_DESC " unloading"); | |
792 | pcmcia_unregister_driver(&pcmciamtd_driver); | |
1da177e4 LT |
793 | } |
794 | ||
795 | module_init(init_pcmciamtd); | |
796 | module_exit(exit_pcmciamtd); |