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Commit | Line | Data |
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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_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; | |
8d3b33f6 | 29 | module_param(debug, int, 0); |
1da177e4 LT |
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) { \ | |
cb53b3b9 | 34 | printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \ |
1da177e4 LT |
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" | |
1da177e4 LT |
49 | |
50 | /* Size of the PCMCIA address space: 26 bits = 64 MB */ | |
51 | #define MAX_PCMCIA_ADDR 0x4000000 | |
52 | ||
53 | struct pcmciamtd_dev { | |
fd238232 | 54 | struct pcmcia_device *p_dev; |
1da177e4 LT |
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 | ||
1da177e4 LT |
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); | |
8d3b33f6 | 89 | module_param(bankwidth, int, 0); |
1da177e4 | 90 | MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); |
8d3b33f6 | 91 | module_param(mem_speed, int, 0); |
1da177e4 | 92 | MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); |
8d3b33f6 | 93 | module_param(force_size, int, 0); |
1da177e4 | 94 | MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); |
8d3b33f6 | 95 | module_param(setvpp, int, 0); |
1da177e4 | 96 | MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); |
8d3b33f6 | 97 | module_param(vpp, int, 0); |
1da177e4 | 98 | MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); |
8d3b33f6 | 99 | module_param(mem_type, int, 0); |
1da177e4 LT |
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 | ||
e2d40963 DB |
111 | if (!pcmcia_dev_present(dev->p_dev)) { |
112 | DEBUG(1, "device removed"); | |
1da177e4 LT |
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; | |
4c89e88b DB |
121 | ret = pcmcia_map_mem_page(win, &mrq); |
122 | if (ret != 0) { | |
fba395ee | 123 | cs_error(dev->p_dev, MapMemPage, ret); |
1da177e4 LT |
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; | |
69f34c98 | 174 | |
1da177e4 LT |
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 | ||
e2d40963 | 239 | #define DEV_REMOVED(x) (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev))) |
1da177e4 LT |
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; | |
fba395ee | 320 | struct pcmcia_device *link = dev->p_dev; |
1da177e4 LT |
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); | |
fba395ee | 329 | ret = pcmcia_modify_configuration(link, &mod); |
4c89e88b | 330 | if (ret != 0) |
fba395ee | 331 | cs_error(link, ModifyConfiguration, ret); |
1da177e4 LT |
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 | ||
fba395ee | 340 | static void pcmciamtd_release(struct pcmcia_device *link) |
1da177e4 LT |
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 | } | |
fba395ee | 353 | pcmcia_disable_device(link); |
1da177e4 LT |
354 | } |
355 | ||
356 | ||
fba395ee | 357 | static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *link, int *new_name) |
1da177e4 LT |
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 | ||
fba395ee | 370 | rc = pcmcia_get_first_tuple(link, &tuple); |
4c89e88b | 371 | while (rc == 0) { |
fba395ee | 372 | rc = pcmcia_get_tuple_data(link, &tuple); |
4c89e88b | 373 | if (rc != 0) { |
fba395ee | 374 | cs_error(link, GetTupleData, rc); |
1da177e4 LT |
375 | break; |
376 | } | |
2f3061eb | 377 | rc = pcmcia_parse_tuple(&tuple, &parse); |
4c89e88b | 378 | if (rc != 0) { |
fba395ee | 379 | cs_error(link, ParseTuple, rc); |
1da177e4 LT |
380 | break; |
381 | } | |
69f34c98 | 382 | |
1da177e4 LT |
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; | |
69f34c98 | 390 | |
1da177e4 | 391 | } |
69f34c98 | 392 | |
1da177e4 LT |
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 | } | |
69f34c98 | 406 | |
1da177e4 LT |
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 | } | |
69f34c98 | 421 | |
1da177e4 LT |
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 | } | |
69f34c98 | 430 | |
1da177e4 LT |
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 | } | |
69f34c98 | 445 | |
1da177e4 LT |
446 | default: |
447 | DEBUG(2, "Unknown tuple code %d", tuple.TupleCode); | |
448 | } | |
69f34c98 | 449 | |
fba395ee | 450 | rc = pcmcia_get_next_tuple(link, &tuple); |
1da177e4 LT |
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); | |
69f34c98 | 466 | } |
1da177e4 LT |
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 | ||
15b99ac1 | 487 | static int pcmciamtd_config(struct pcmcia_device *link) |
1da177e4 LT |
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; | |
1da177e4 | 496 | static char *probes[] = { "jedec_probe", "cfi_probe" }; |
1da177e4 LT |
497 | int new_name = 0; |
498 | ||
499 | DEBUG(3, "link=0x%p", link); | |
500 | ||
1da177e4 LT |
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; | |
fba395ee | 524 | link->win = (window_handle_t)link; |
1da177e4 LT |
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); | |
fba395ee | 532 | ret = pcmcia_request_window(&link, &req, &link->win); |
1da177e4 LT |
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); | |
15b99ac1 | 548 | return -ENODEV; |
1da177e4 LT |
549 | } |
550 | DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); | |
69f34c98 | 551 | |
1da177e4 | 552 | /* Get write protect status */ |
4aeba013 | 553 | DEBUG(2, "window handle = 0x%8.8lx", (unsigned long)link->win); |
1da177e4 LT |
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); | |
15b99ac1 | 558 | return -ENODEV; |
1da177e4 LT |
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 | ||
ef313e36 | 567 | dev->vpp = (vpp) ? vpp : link->socket.socket.Vpp; |
1da177e4 | 568 | link->conf.Attributes = 0; |
1da177e4 | 569 | if(setvpp == 2) { |
70294b46 | 570 | link->conf.Vpp = dev->vpp; |
1da177e4 | 571 | } else { |
70294b46 | 572 | link->conf.Vpp = 0; |
1da177e4 LT |
573 | } |
574 | ||
575 | link->conf.IntType = INT_MEMORY; | |
1da177e4 | 576 | link->conf.ConfigIndex = 0; |
1da177e4 | 577 | DEBUG(2, "Setting Configuration"); |
fba395ee | 578 | ret = pcmcia_request_configuration(link, &link->conf); |
4c89e88b | 579 | if (ret != 0) { |
fba395ee | 580 | cs_error(link, RequestConfiguration, ret); |
25f0c659 AL |
581 | if (dev->win_base) { |
582 | iounmap(dev->win_base); | |
583 | dev->win_base = NULL; | |
584 | } | |
15b99ac1 | 585 | return -ENODEV; |
1da177e4 LT |
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 { | |
87d10f3c | 593 | for(i = 0; i < ARRAY_SIZE(probes); i++) { |
1da177e4 LT |
594 | DEBUG(1, "Trying %s", probes[i]); |
595 | mtd = do_map_probe(probes[i], &dev->pcmcia_map); | |
596 | if(mtd) | |
597 | break; | |
69f34c98 | 598 | |
1da177e4 LT |
599 | DEBUG(1, "FAILED: %s", probes[i]); |
600 | } | |
601 | } | |
69f34c98 | 602 | |
1da177e4 LT |
603 | if(!mtd) { |
604 | DEBUG(1, "Cant find an MTD"); | |
605 | pcmciamtd_release(link); | |
15b99ac1 | 606 | return -ENODEV; |
1da177e4 LT |
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"); | |
1da177e4 LT |
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); | |
15b99ac1 | 648 | return -ENODEV; |
1da177e4 LT |
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); | |
fd238232 | 652 | link->dev_node = &dev->node; |
15b99ac1 | 653 | return 0; |
1da177e4 LT |
654 | |
655 | cs_failed: | |
fba395ee | 656 | cs_error(link, last_fn, last_ret); |
1da177e4 LT |
657 | err("CS Error, exiting"); |
658 | pcmciamtd_release(link); | |
15b99ac1 | 659 | return -ENODEV; |
1da177e4 LT |
660 | } |
661 | ||
662 | ||
98e4c28b DB |
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 | ||
1da177e4 LT |
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 | ||
fba395ee | 688 | static void pcmciamtd_detach(struct pcmcia_device *link) |
1da177e4 | 689 | { |
e2d40963 | 690 | struct pcmciamtd_dev *dev = link->priv; |
cc3b4866 | 691 | |
1da177e4 LT |
692 | DEBUG(3, "link=0x%p", link); |
693 | ||
e2d40963 DB |
694 | if(dev->mtd_info) { |
695 | del_mtd_device(dev->mtd_info); | |
599fb329 | 696 | map_destroy(dev->mtd_info); |
e2d40963 | 697 | info("mtd%d: Removed", dev->mtd_info->index); |
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; | |
722 | link->conf.IntType = INT_MEMORY; | |
723 | ||
15b99ac1 | 724 | return pcmciamtd_config(link); |
1da177e4 LT |
725 | } |
726 | ||
11d28a30 DB |
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); | |
1da177e4 LT |
753 | |
754 | static struct pcmcia_driver pcmciamtd_driver = { | |
755 | .drv = { | |
756 | .name = "pcmciamtd" | |
757 | }, | |
15b99ac1 | 758 | .probe = pcmciamtd_probe, |
cc3b4866 | 759 | .remove = pcmciamtd_detach, |
11d28a30 DB |
760 | .owner = THIS_MODULE, |
761 | .id_table = pcmciamtd_ids, | |
98e4c28b DB |
762 | .suspend = pcmciamtd_suspend, |
763 | .resume = pcmciamtd_resume, | |
1da177e4 LT |
764 | }; |
765 | ||
766 | ||
767 | static int __init init_pcmciamtd(void) | |
768 | { | |
59018b6d | 769 | info(DRIVER_DESC); |
1da177e4 LT |
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); | |
1da177e4 LT |
791 | } |
792 | ||
793 | module_init(init_pcmciamtd); | |
794 | module_exit(exit_pcmciamtd); |