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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * rsrc_nonstatic.c -- Resource management routines for !SS_CAP_STATIC_MAP sockets | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * The initial developer of the original code is David A. Hinds | |
9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
11 | * | |
12 | * (C) 1999 David A. Hinds | |
13 | */ | |
14 | ||
1da177e4 LT |
15 | #include <linux/module.h> |
16 | #include <linux/moduleparam.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/interrupt.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/errno.h> | |
21 | #include <linux/types.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/ioport.h> | |
24 | #include <linux/timer.h> | |
25 | #include <linux/pci.h> | |
26 | #include <linux/device.h> | |
9fea84f4 | 27 | #include <linux/io.h> |
1da177e4 LT |
28 | |
29 | #include <asm/irq.h> | |
1da177e4 LT |
30 | |
31 | #include <pcmcia/cs_types.h> | |
32 | #include <pcmcia/ss.h> | |
33 | #include <pcmcia/cs.h> | |
1da177e4 LT |
34 | #include <pcmcia/cistpl.h> |
35 | #include "cs_internal.h" | |
36 | ||
37 | MODULE_AUTHOR("David A. Hinds, Dominik Brodowski"); | |
38 | MODULE_LICENSE("GPL"); | |
39 | ||
40 | /* Parameters that can be set with 'insmod' */ | |
41 | ||
42 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444) | |
43 | ||
44 | INT_MODULE_PARM(probe_mem, 1); /* memory probe? */ | |
45 | #ifdef CONFIG_PCMCIA_PROBE | |
46 | INT_MODULE_PARM(probe_io, 1); /* IO port probe? */ | |
47 | INT_MODULE_PARM(mem_limit, 0x10000); | |
48 | #endif | |
49 | ||
50 | /* for io_db and mem_db */ | |
51 | struct resource_map { | |
52 | u_long base, num; | |
53 | struct resource_map *next; | |
54 | }; | |
55 | ||
56 | struct socket_data { | |
57 | struct resource_map mem_db; | |
58 | struct resource_map io_db; | |
59 | unsigned int rsrc_mem_probe; | |
60 | }; | |
61 | ||
7fe908dd | 62 | static DEFINE_MUTEX(rsrc_mutex); |
1da177e4 LT |
63 | #define MEM_PROBE_LOW (1 << 0) |
64 | #define MEM_PROBE_HIGH (1 << 1) | |
65 | ||
66 | ||
67 | /*====================================================================== | |
68 | ||
69 | Linux resource management extensions | |
70 | ||
71 | ======================================================================*/ | |
72 | ||
73 | static struct resource * | |
25096986 | 74 | make_resource(resource_size_t b, resource_size_t n, int flags, const char *name) |
1da177e4 | 75 | { |
8084b372 | 76 | struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL); |
1da177e4 LT |
77 | |
78 | if (res) { | |
1da177e4 LT |
79 | res->name = name; |
80 | res->start = b; | |
81 | res->end = b + n - 1; | |
82 | res->flags = flags; | |
83 | } | |
84 | return res; | |
85 | } | |
86 | ||
87 | static struct resource * | |
2427ddd8 GKH |
88 | claim_region(struct pcmcia_socket *s, resource_size_t base, |
89 | resource_size_t size, int type, char *name) | |
1da177e4 LT |
90 | { |
91 | struct resource *res, *parent; | |
92 | ||
93 | parent = type & IORESOURCE_MEM ? &iomem_resource : &ioport_resource; | |
94 | res = make_resource(base, size, type | IORESOURCE_BUSY, name); | |
95 | ||
96 | if (res) { | |
97 | #ifdef CONFIG_PCI | |
98 | if (s && s->cb_dev) | |
99 | parent = pci_find_parent_resource(s->cb_dev, res); | |
100 | #endif | |
101 | if (!parent || request_resource(parent, res)) { | |
102 | kfree(res); | |
103 | res = NULL; | |
104 | } | |
105 | } | |
106 | return res; | |
107 | } | |
108 | ||
109 | static void free_region(struct resource *res) | |
110 | { | |
111 | if (res) { | |
112 | release_resource(res); | |
113 | kfree(res); | |
114 | } | |
115 | } | |
116 | ||
117 | /*====================================================================== | |
118 | ||
119 | These manage the internal databases of available resources. | |
120 | ||
121 | ======================================================================*/ | |
122 | ||
123 | static int add_interval(struct resource_map *map, u_long base, u_long num) | |
124 | { | |
1168386a | 125 | struct resource_map *p, *q; |
1da177e4 | 126 | |
1168386a DB |
127 | for (p = map; ; p = p->next) { |
128 | if ((p != map) && (p->base+p->num-1 >= base)) | |
129 | return -1; | |
130 | if ((p->next == map) || (p->next->base > base+num-1)) | |
131 | break; | |
132 | } | |
133 | q = kmalloc(sizeof(struct resource_map), GFP_KERNEL); | |
134 | if (!q) { | |
135 | printk(KERN_WARNING "out of memory to update resources\n"); | |
136 | return -ENOMEM; | |
137 | } | |
138 | q->base = base; q->num = num; | |
139 | q->next = p->next; p->next = q; | |
140 | return 0; | |
1da177e4 LT |
141 | } |
142 | ||
143 | /*====================================================================*/ | |
144 | ||
145 | static int sub_interval(struct resource_map *map, u_long base, u_long num) | |
146 | { | |
9fea84f4 DB |
147 | struct resource_map *p, *q; |
148 | ||
149 | for (p = map; ; p = q) { | |
150 | q = p->next; | |
151 | if (q == map) | |
152 | break; | |
153 | if ((q->base+q->num > base) && (base+num > q->base)) { | |
154 | if (q->base >= base) { | |
155 | if (q->base+q->num <= base+num) { | |
156 | /* Delete whole block */ | |
157 | p->next = q->next; | |
158 | kfree(q); | |
159 | /* don't advance the pointer yet */ | |
160 | q = p; | |
161 | } else { | |
162 | /* Cut off bit from the front */ | |
163 | q->num = q->base + q->num - base - num; | |
164 | q->base = base + num; | |
165 | } | |
166 | } else if (q->base+q->num <= base+num) { | |
167 | /* Cut off bit from the end */ | |
168 | q->num = base - q->base; | |
169 | } else { | |
170 | /* Split the block into two pieces */ | |
171 | p = kmalloc(sizeof(struct resource_map), | |
172 | GFP_KERNEL); | |
173 | if (!p) { | |
174 | printk(KERN_WARNING "out of memory to update resources\n"); | |
175 | return -ENOMEM; | |
176 | } | |
177 | p->base = base+num; | |
178 | p->num = q->base+q->num - p->base; | |
179 | q->num = base - q->base; | |
180 | p->next = q->next ; q->next = p; | |
181 | } | |
1168386a | 182 | } |
9fea84f4 DB |
183 | } |
184 | return 0; | |
1da177e4 LT |
185 | } |
186 | ||
187 | /*====================================================================== | |
188 | ||
189 | These routines examine a region of IO or memory addresses to | |
190 | determine what ranges might be genuinely available. | |
191 | ||
192 | ======================================================================*/ | |
193 | ||
194 | #ifdef CONFIG_PCMCIA_PROBE | |
906da809 OJ |
195 | static void do_io_probe(struct pcmcia_socket *s, unsigned int base, |
196 | unsigned int num) | |
1da177e4 | 197 | { |
9fea84f4 DB |
198 | struct resource *res; |
199 | struct socket_data *s_data = s->resource_data; | |
200 | unsigned int i, j, bad; | |
201 | int any; | |
202 | u_char *b, hole, most; | |
203 | ||
204 | dev_printk(KERN_INFO, &s->dev, "cs: IO port probe %#x-%#x:", | |
205 | base, base+num-1); | |
206 | ||
207 | /* First, what does a floating port look like? */ | |
208 | b = kzalloc(256, GFP_KERNEL); | |
209 | if (!b) { | |
210 | printk("\n"); | |
211 | dev_printk(KERN_ERR, &s->dev, | |
212 | "do_io_probe: unable to kmalloc 256 bytes"); | |
213 | return; | |
214 | } | |
215 | for (i = base, most = 0; i < base+num; i += 8) { | |
216 | res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); | |
217 | if (!res) | |
218 | continue; | |
219 | hole = inb(i); | |
220 | for (j = 1; j < 8; j++) | |
221 | if (inb(i+j) != hole) | |
222 | break; | |
223 | free_region(res); | |
224 | if ((j == 8) && (++b[hole] > b[most])) | |
225 | most = hole; | |
226 | if (b[most] == 127) | |
227 | break; | |
228 | } | |
229 | kfree(b); | |
230 | ||
231 | bad = any = 0; | |
232 | for (i = base; i < base+num; i += 8) { | |
233 | res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); | |
234 | if (!res) | |
235 | continue; | |
236 | for (j = 0; j < 8; j++) | |
237 | if (inb(i+j) != most) | |
238 | break; | |
239 | free_region(res); | |
240 | if (j < 8) { | |
241 | if (!any) | |
242 | printk(" excluding"); | |
243 | if (!bad) | |
244 | bad = any = i; | |
245 | } else { | |
246 | if (bad) { | |
247 | sub_interval(&s_data->io_db, bad, i-bad); | |
248 | printk(" %#x-%#x", bad, i-1); | |
249 | bad = 0; | |
250 | } | |
251 | } | |
252 | } | |
253 | if (bad) { | |
254 | if ((num > 16) && (bad == base) && (i == base+num)) { | |
255 | printk(" nothing: probe failed.\n"); | |
256 | return; | |
257 | } else { | |
258 | sub_interval(&s_data->io_db, bad, i-bad); | |
259 | printk(" %#x-%#x", bad, i-1); | |
260 | } | |
261 | } | |
262 | ||
263 | printk(any ? "\n" : " clean.\n"); | |
1da177e4 LT |
264 | } |
265 | #endif | |
266 | ||
3f32b3c0 | 267 | /*======================================================================*/ |
1da177e4 | 268 | |
3f32b3c0 DB |
269 | /** |
270 | * readable() - iomem validation function for cards with a valid CIS | |
271 | */ | |
c5081d5f DB |
272 | static int readable(struct pcmcia_socket *s, struct resource *res, |
273 | unsigned int *count) | |
1da177e4 | 274 | { |
3f32b3c0 | 275 | int ret = -EINVAL; |
1da177e4 | 276 | |
6b8e087b | 277 | mutex_lock(&s->ops_mutex); |
1da177e4 LT |
278 | s->cis_mem.res = res; |
279 | s->cis_virt = ioremap(res->start, s->map_size); | |
280 | if (s->cis_virt) { | |
6b8e087b | 281 | mutex_unlock(&s->ops_mutex); |
6e7b51a7 DB |
282 | /* as we're only called from pcmcia.c, we're safe */ |
283 | if (s->callback->validate) | |
284 | ret = s->callback->validate(s, count); | |
904e3777 | 285 | /* invalidate mapping */ |
6b8e087b | 286 | mutex_lock(&s->ops_mutex); |
1da177e4 LT |
287 | iounmap(s->cis_virt); |
288 | s->cis_virt = NULL; | |
1da177e4 LT |
289 | } |
290 | s->cis_mem.res = NULL; | |
6b8e087b | 291 | mutex_unlock(&s->ops_mutex); |
3f32b3c0 DB |
292 | if ((ret) || (*count == 0)) |
293 | return -EINVAL; | |
294 | return 0; | |
1da177e4 LT |
295 | } |
296 | ||
3f32b3c0 DB |
297 | /** |
298 | * checksum() - iomem validation function for simple memory cards | |
299 | */ | |
300 | static int checksum(struct pcmcia_socket *s, struct resource *res, | |
301 | unsigned int *value) | |
1da177e4 LT |
302 | { |
303 | pccard_mem_map map; | |
304 | int i, a = 0, b = -1, d; | |
305 | void __iomem *virt; | |
306 | ||
6b8e087b DB |
307 | mutex_lock(&s->ops_mutex); |
308 | ||
1da177e4 LT |
309 | virt = ioremap(res->start, s->map_size); |
310 | if (virt) { | |
311 | map.map = 0; | |
312 | map.flags = MAP_ACTIVE; | |
313 | map.speed = 0; | |
314 | map.res = res; | |
315 | map.card_start = 0; | |
316 | s->ops->set_mem_map(s, &map); | |
317 | ||
318 | /* Don't bother checking every word... */ | |
319 | for (i = 0; i < s->map_size; i += 44) { | |
320 | d = readl(virt+i); | |
321 | a += d; | |
322 | b &= d; | |
323 | } | |
324 | ||
325 | map.flags = 0; | |
326 | s->ops->set_mem_map(s, &map); | |
327 | ||
328 | iounmap(virt); | |
329 | } | |
330 | ||
6b8e087b DB |
331 | mutex_unlock(&s->ops_mutex); |
332 | ||
3f32b3c0 DB |
333 | if (b == -1) |
334 | return -EINVAL; | |
1da177e4 | 335 | |
3f32b3c0 | 336 | *value = a; |
1da177e4 | 337 | |
3f32b3c0 | 338 | return 0; |
1da177e4 LT |
339 | } |
340 | ||
3f32b3c0 DB |
341 | /** |
342 | * do_validate_mem() - low level validate a memory region for PCMCIA use | |
343 | * @s: PCMCIA socket to validate | |
344 | * @base: start address of resource to check | |
345 | * @size: size of resource to check | |
346 | * @validate: validation function to use | |
347 | * | |
348 | * do_validate_mem() splits up the memory region which is to be checked | |
349 | * into two parts. Both are passed to the @validate() function. If | |
350 | * @validate() returns non-zero, or the value parameter to @validate() | |
351 | * is zero, or the value parameter is different between both calls, | |
352 | * the check fails, and -EINVAL is returned. Else, 0 is returned. | |
353 | */ | |
354 | static int do_validate_mem(struct pcmcia_socket *s, | |
355 | unsigned long base, unsigned long size, | |
356 | int validate (struct pcmcia_socket *s, | |
357 | struct resource *res, | |
358 | unsigned int *value)) | |
1da177e4 LT |
359 | { |
360 | struct resource *res1, *res2; | |
3f32b3c0 DB |
361 | unsigned int info1 = 1, info2 = 1; |
362 | int ret = -EINVAL; | |
1da177e4 | 363 | |
9fea84f4 DB |
364 | res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe"); |
365 | res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, | |
366 | "PCMCIA memprobe"); | |
1da177e4 LT |
367 | |
368 | if (res1 && res2) { | |
3f32b3c0 DB |
369 | ret = 0; |
370 | if (validate) { | |
371 | ret = validate(s, res1, &info1); | |
372 | ret += validate(s, res2, &info2); | |
373 | } | |
1da177e4 LT |
374 | } |
375 | ||
376 | free_region(res2); | |
377 | free_region(res1); | |
378 | ||
3f32b3c0 DB |
379 | dev_dbg(&s->dev, "cs: memory probe 0x%06lx-0x%06lx: %p %p %u %u %u", |
380 | base, base+size-1, res1, res2, ret, info1, info2); | |
1da177e4 | 381 | |
3f32b3c0 DB |
382 | if ((ret) || (info1 != info2) || (info1 == 0)) |
383 | return -EINVAL; | |
1da177e4 | 384 | |
3f32b3c0 DB |
385 | return 0; |
386 | } | |
1da177e4 | 387 | |
1da177e4 | 388 | |
3f32b3c0 DB |
389 | /** |
390 | * do_mem_probe() - validate a memory region for PCMCIA use | |
391 | * @s: PCMCIA socket to validate | |
392 | * @base: start address of resource to check | |
393 | * @num: size of resource to check | |
394 | * @validate: validation function to use | |
395 | * @fallback: validation function to use if validate fails | |
396 | * | |
397 | * do_mem_probe() checks a memory region for use by the PCMCIA subsystem. | |
398 | * To do so, the area is split up into sensible parts, and then passed | |
399 | * into the @validate() function. Only if @validate() and @fallback() fail, | |
400 | * the area is marked as unavaibale for use by the PCMCIA subsystem. The | |
401 | * function returns the size of the usable memory area. | |
402 | */ | |
403 | static int do_mem_probe(struct pcmcia_socket *s, u_long base, u_long num, | |
404 | int validate (struct pcmcia_socket *s, | |
405 | struct resource *res, | |
406 | unsigned int *value), | |
407 | int fallback (struct pcmcia_socket *s, | |
408 | struct resource *res, | |
409 | unsigned int *value)) | |
1da177e4 | 410 | { |
9fea84f4 DB |
411 | struct socket_data *s_data = s->resource_data; |
412 | u_long i, j, bad, fail, step; | |
413 | ||
414 | dev_printk(KERN_INFO, &s->dev, "cs: memory probe 0x%06lx-0x%06lx:", | |
415 | base, base+num-1); | |
416 | bad = fail = 0; | |
417 | step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff); | |
418 | /* don't allow too large steps */ | |
419 | if (step > 0x800000) | |
420 | step = 0x800000; | |
421 | /* cis_readable wants to map 2x map_size */ | |
422 | if (step < 2 * s->map_size) | |
423 | step = 2 * s->map_size; | |
424 | for (i = j = base; i < base+num; i = j + step) { | |
425 | if (!fail) { | |
426 | for (j = i; j < base+num; j += step) { | |
3f32b3c0 | 427 | if (!do_validate_mem(s, j, step, validate)) |
9fea84f4 DB |
428 | break; |
429 | } | |
430 | fail = ((i == base) && (j == base+num)); | |
431 | } | |
3f32b3c0 DB |
432 | if ((fail) && (fallback)) { |
433 | for (j = i; j < base+num; j += step) | |
434 | if (!do_validate_mem(s, j, step, fallback)) | |
9fea84f4 DB |
435 | break; |
436 | } | |
437 | if (i != j) { | |
438 | if (!bad) | |
439 | printk(" excluding"); | |
440 | printk(" %#05lx-%#05lx", i, j-1); | |
441 | sub_interval(&s_data->mem_db, i, j-i); | |
442 | bad += j-i; | |
443 | } | |
444 | } | |
445 | printk(bad ? "\n" : " clean.\n"); | |
446 | return num - bad; | |
1da177e4 LT |
447 | } |
448 | ||
3f32b3c0 | 449 | |
1da177e4 LT |
450 | #ifdef CONFIG_PCMCIA_PROBE |
451 | ||
3f32b3c0 DB |
452 | /** |
453 | * inv_probe() - top-to-bottom search for one usuable high memory area | |
454 | * @s: PCMCIA socket to validate | |
455 | * @m: resource_map to check | |
456 | */ | |
1da177e4 LT |
457 | static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s) |
458 | { | |
de75914e DB |
459 | struct socket_data *s_data = s->resource_data; |
460 | u_long ok; | |
461 | if (m == &s_data->mem_db) | |
462 | return 0; | |
463 | ok = inv_probe(m->next, s); | |
464 | if (ok) { | |
465 | if (m->base >= 0x100000) | |
466 | sub_interval(&s_data->mem_db, m->base, m->num); | |
467 | return ok; | |
468 | } | |
469 | if (m->base < 0x100000) | |
470 | return 0; | |
3f32b3c0 | 471 | return do_mem_probe(s, m->base, m->num, readable, checksum); |
1da177e4 LT |
472 | } |
473 | ||
3f32b3c0 DB |
474 | /** |
475 | * validate_mem() - memory probe function | |
476 | * @s: PCMCIA socket to validate | |
477 | * @probe_mask: MEM_PROBE_LOW | MEM_PROBE_HIGH | |
478 | * | |
479 | * The memory probe. If the memory list includes a 64K-aligned block | |
480 | * below 1MB, we probe in 64K chunks, and as soon as we accumulate at | |
481 | * least mem_limit free space, we quit. Returns 0 on usuable ports. | |
482 | */ | |
de75914e | 483 | static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) |
1da177e4 | 484 | { |
de75914e DB |
485 | struct resource_map *m, mm; |
486 | static unsigned char order[] = { 0xd0, 0xe0, 0xc0, 0xf0 }; | |
487 | unsigned long b, i, ok = 0; | |
488 | struct socket_data *s_data = s->resource_data; | |
1da177e4 | 489 | |
de75914e DB |
490 | /* We do up to four passes through the list */ |
491 | if (probe_mask & MEM_PROBE_HIGH) { | |
492 | if (inv_probe(s_data->mem_db.next, s) > 0) | |
493 | return 0; | |
dbe4ea5f DB |
494 | dev_printk(KERN_NOTICE, &s->dev, |
495 | "cs: warning: no high memory space available!\n"); | |
de75914e | 496 | return -ENODEV; |
1da177e4 | 497 | } |
de75914e DB |
498 | |
499 | for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) { | |
500 | mm = *m; | |
501 | /* Only probe < 1 MB */ | |
502 | if (mm.base >= 0x100000) | |
503 | continue; | |
504 | if ((mm.base | mm.num) & 0xffff) { | |
3f32b3c0 DB |
505 | ok += do_mem_probe(s, mm.base, mm.num, readable, |
506 | checksum); | |
de75914e DB |
507 | continue; |
508 | } | |
509 | /* Special probe for 64K-aligned block */ | |
510 | for (i = 0; i < 4; i++) { | |
511 | b = order[i] << 12; | |
512 | if ((b >= mm.base) && (b+0x10000 <= mm.base+mm.num)) { | |
513 | if (ok >= mem_limit) | |
514 | sub_interval(&s_data->mem_db, b, 0x10000); | |
515 | else | |
3f32b3c0 DB |
516 | ok += do_mem_probe(s, b, 0x10000, |
517 | readable, checksum); | |
de75914e DB |
518 | } |
519 | } | |
1da177e4 | 520 | } |
de75914e DB |
521 | |
522 | if (ok > 0) | |
523 | return 0; | |
524 | ||
525 | return -ENODEV; | |
1da177e4 LT |
526 | } |
527 | ||
528 | #else /* CONFIG_PCMCIA_PROBE */ | |
529 | ||
3f32b3c0 DB |
530 | /** |
531 | * validate_mem() - memory probe function | |
532 | * @s: PCMCIA socket to validate | |
533 | * @probe_mask: ignored | |
534 | * | |
535 | * Returns 0 on usuable ports. | |
536 | */ | |
2cff9447 | 537 | static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) |
1da177e4 LT |
538 | { |
539 | struct resource_map *m, mm; | |
540 | struct socket_data *s_data = s->resource_data; | |
2cff9447 | 541 | unsigned long ok = 0; |
1da177e4 LT |
542 | |
543 | for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) { | |
544 | mm = *m; | |
3f32b3c0 | 545 | ok += do_mem_probe(s, mm.base, mm.num, readable, checksum); |
1da177e4 | 546 | } |
2cff9447 AM |
547 | if (ok > 0) |
548 | return 0; | |
549 | return -ENODEV; | |
1da177e4 LT |
550 | } |
551 | ||
552 | #endif /* CONFIG_PCMCIA_PROBE */ | |
553 | ||
554 | ||
3f32b3c0 DB |
555 | /** |
556 | * pcmcia_nonstatic_validate_mem() - try to validate iomem for PCMCIA use | |
557 | * @s: PCMCIA socket to validate | |
558 | * | |
559 | * This is tricky... when we set up CIS memory, we try to validate | |
560 | * the memory window space allocations. | |
561 | * | |
7fe908dd | 562 | * Locking note: Must be called with skt_mutex held! |
1da177e4 | 563 | */ |
de75914e | 564 | static int pcmcia_nonstatic_validate_mem(struct pcmcia_socket *s) |
1da177e4 LT |
565 | { |
566 | struct socket_data *s_data = s->resource_data; | |
de75914e DB |
567 | unsigned int probe_mask = MEM_PROBE_LOW; |
568 | int ret = 0; | |
569 | ||
570 | if (!probe_mem) | |
571 | return 0; | |
1da177e4 | 572 | |
7fe908dd | 573 | mutex_lock(&rsrc_mutex); |
1da177e4 | 574 | |
de75914e DB |
575 | if (s->features & SS_CAP_PAGE_REGS) |
576 | probe_mask = MEM_PROBE_HIGH; | |
1da177e4 | 577 | |
de75914e | 578 | if (probe_mask & ~s_data->rsrc_mem_probe) { |
3f32b3c0 | 579 | if (s->state & SOCKET_PRESENT) { |
de75914e | 580 | ret = validate_mem(s, probe_mask); |
3f32b3c0 DB |
581 | if (!ret) |
582 | s_data->rsrc_mem_probe |= probe_mask; | |
583 | } | |
de75914e | 584 | } |
1da177e4 | 585 | |
7fe908dd | 586 | mutex_unlock(&rsrc_mutex); |
1da177e4 | 587 | |
de75914e | 588 | return ret; |
1da177e4 LT |
589 | } |
590 | ||
591 | struct pcmcia_align_data { | |
592 | unsigned long mask; | |
593 | unsigned long offset; | |
594 | struct resource_map *map; | |
595 | }; | |
596 | ||
597 | static void | |
598 | pcmcia_common_align(void *align_data, struct resource *res, | |
2427ddd8 | 599 | resource_size_t size, resource_size_t align) |
1da177e4 LT |
600 | { |
601 | struct pcmcia_align_data *data = align_data; | |
2427ddd8 | 602 | resource_size_t start; |
1da177e4 LT |
603 | /* |
604 | * Ensure that we have the correct start address | |
605 | */ | |
606 | start = (res->start & ~data->mask) + data->offset; | |
607 | if (start < res->start) | |
608 | start += data->mask + 1; | |
609 | res->start = start; | |
610 | } | |
611 | ||
612 | static void | |
2427ddd8 GKH |
613 | pcmcia_align(void *align_data, struct resource *res, resource_size_t size, |
614 | resource_size_t align) | |
1da177e4 LT |
615 | { |
616 | struct pcmcia_align_data *data = align_data; | |
617 | struct resource_map *m; | |
618 | ||
619 | pcmcia_common_align(data, res, size, align); | |
620 | ||
621 | for (m = data->map->next; m != data->map; m = m->next) { | |
622 | unsigned long start = m->base; | |
623 | unsigned long end = m->base + m->num - 1; | |
624 | ||
625 | /* | |
626 | * If the lower resources are not available, try aligning | |
627 | * to this entry of the resource database to see if it'll | |
628 | * fit here. | |
629 | */ | |
630 | if (res->start < start) { | |
631 | res->start = start; | |
632 | pcmcia_common_align(data, res, size, align); | |
633 | } | |
634 | ||
635 | /* | |
636 | * If we're above the area which was passed in, there's | |
637 | * no point proceeding. | |
638 | */ | |
639 | if (res->start >= res->end) | |
640 | break; | |
641 | ||
642 | if ((res->start + size - 1) <= end) | |
643 | break; | |
644 | } | |
645 | ||
646 | /* | |
647 | * If we failed to find something suitable, ensure we fail. | |
648 | */ | |
649 | if (m == data->map) | |
650 | res->start = res->end; | |
651 | } | |
652 | ||
653 | /* | |
654 | * Adjust an existing IO region allocation, but making sure that we don't | |
655 | * encroach outside the resources which the user supplied. | |
656 | */ | |
657 | static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_start, | |
658 | unsigned long r_end, struct pcmcia_socket *s) | |
659 | { | |
660 | struct resource_map *m; | |
661 | struct socket_data *s_data = s->resource_data; | |
662 | int ret = -ENOMEM; | |
663 | ||
7fe908dd | 664 | mutex_lock(&rsrc_mutex); |
1da177e4 LT |
665 | for (m = s_data->io_db.next; m != &s_data->io_db; m = m->next) { |
666 | unsigned long start = m->base; | |
667 | unsigned long end = m->base + m->num - 1; | |
668 | ||
669 | if (start > r_start || r_end > end) | |
670 | continue; | |
671 | ||
672 | ret = adjust_resource(res, r_start, r_end - r_start + 1); | |
673 | break; | |
674 | } | |
7fe908dd | 675 | mutex_unlock(&rsrc_mutex); |
1da177e4 LT |
676 | |
677 | return ret; | |
678 | } | |
679 | ||
680 | /*====================================================================== | |
681 | ||
682 | These find ranges of I/O ports or memory addresses that are not | |
683 | currently allocated by other devices. | |
684 | ||
685 | The 'align' field should reflect the number of bits of address | |
686 | that need to be preserved from the initial value of *base. It | |
687 | should be a power of two, greater than or equal to 'num'. A value | |
688 | of 0 means that all bits of *base are significant. *base should | |
689 | also be strictly less than 'align'. | |
690 | ||
691 | ======================================================================*/ | |
692 | ||
e94e15f7 | 693 | static struct resource *nonstatic_find_io_region(unsigned long base, int num, |
1da177e4 LT |
694 | unsigned long align, struct pcmcia_socket *s) |
695 | { | |
25096986 | 696 | struct resource *res = make_resource(0, num, IORESOURCE_IO, dev_name(&s->dev)); |
1da177e4 LT |
697 | struct socket_data *s_data = s->resource_data; |
698 | struct pcmcia_align_data data; | |
699 | unsigned long min = base; | |
700 | int ret; | |
701 | ||
702 | if (align == 0) | |
703 | align = 0x10000; | |
704 | ||
705 | data.mask = align - 1; | |
706 | data.offset = base & data.mask; | |
707 | data.map = &s_data->io_db; | |
708 | ||
7fe908dd | 709 | mutex_lock(&rsrc_mutex); |
1da177e4 LT |
710 | #ifdef CONFIG_PCI |
711 | if (s->cb_dev) { | |
712 | ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1, | |
713 | min, 0, pcmcia_align, &data); | |
714 | } else | |
715 | #endif | |
716 | ret = allocate_resource(&ioport_resource, res, num, min, ~0UL, | |
717 | 1, pcmcia_align, &data); | |
7fe908dd | 718 | mutex_unlock(&rsrc_mutex); |
1da177e4 LT |
719 | |
720 | if (ret != 0) { | |
721 | kfree(res); | |
722 | res = NULL; | |
723 | } | |
724 | return res; | |
725 | } | |
726 | ||
9fea84f4 | 727 | static struct resource *nonstatic_find_mem_region(u_long base, u_long num, |
e94e15f7 | 728 | u_long align, int low, struct pcmcia_socket *s) |
1da177e4 | 729 | { |
25096986 | 730 | struct resource *res = make_resource(0, num, IORESOURCE_MEM, dev_name(&s->dev)); |
1da177e4 LT |
731 | struct socket_data *s_data = s->resource_data; |
732 | struct pcmcia_align_data data; | |
733 | unsigned long min, max; | |
734 | int ret, i; | |
735 | ||
736 | low = low || !(s->features & SS_CAP_PAGE_REGS); | |
737 | ||
738 | data.mask = align - 1; | |
739 | data.offset = base & data.mask; | |
740 | data.map = &s_data->mem_db; | |
741 | ||
742 | for (i = 0; i < 2; i++) { | |
743 | if (low) { | |
744 | max = 0x100000UL; | |
745 | min = base < max ? base : 0; | |
746 | } else { | |
747 | max = ~0UL; | |
748 | min = 0x100000UL + base; | |
749 | } | |
750 | ||
7fe908dd | 751 | mutex_lock(&rsrc_mutex); |
1da177e4 LT |
752 | #ifdef CONFIG_PCI |
753 | if (s->cb_dev) { | |
754 | ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, | |
755 | 1, min, 0, | |
756 | pcmcia_align, &data); | |
757 | } else | |
758 | #endif | |
759 | ret = allocate_resource(&iomem_resource, res, num, min, | |
760 | max, 1, pcmcia_align, &data); | |
7fe908dd | 761 | mutex_unlock(&rsrc_mutex); |
1da177e4 LT |
762 | if (ret == 0 || low) |
763 | break; | |
764 | low = 1; | |
765 | } | |
766 | ||
767 | if (ret != 0) { | |
768 | kfree(res); | |
769 | res = NULL; | |
770 | } | |
771 | return res; | |
772 | } | |
773 | ||
774 | ||
22916638 | 775 | static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end) |
1da177e4 | 776 | { |
1da177e4 | 777 | struct socket_data *data = s->resource_data; |
22916638 DB |
778 | unsigned long size = end - start + 1; |
779 | int ret = 0; | |
1da177e4 | 780 | |
1146bc74 | 781 | if (end < start) |
22916638 | 782 | return -EINVAL; |
1da177e4 | 783 | |
7fe908dd | 784 | mutex_lock(&rsrc_mutex); |
22916638 | 785 | switch (action) { |
1da177e4 | 786 | case ADD_MANAGED_RESOURCE: |
22916638 | 787 | ret = add_interval(&data->mem_db, start, size); |
3f32b3c0 DB |
788 | if (!ret) |
789 | do_mem_probe(s, start, size, NULL, NULL); | |
1da177e4 LT |
790 | break; |
791 | case REMOVE_MANAGED_RESOURCE: | |
22916638 | 792 | ret = sub_interval(&data->mem_db, start, size); |
1da177e4 LT |
793 | break; |
794 | default: | |
22916638 | 795 | ret = -EINVAL; |
1da177e4 | 796 | } |
7fe908dd | 797 | mutex_unlock(&rsrc_mutex); |
1da177e4 LT |
798 | |
799 | return ret; | |
800 | } | |
801 | ||
802 | ||
22916638 | 803 | static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end) |
1da177e4 LT |
804 | { |
805 | struct socket_data *data = s->resource_data; | |
22916638 DB |
806 | unsigned long size = end - start + 1; |
807 | int ret = 0; | |
1da177e4 | 808 | |
1146bc74 | 809 | if (end < start) |
22916638 DB |
810 | return -EINVAL; |
811 | ||
812 | if (end > IO_SPACE_LIMIT) | |
813 | return -EINVAL; | |
1da177e4 | 814 | |
7fe908dd | 815 | mutex_lock(&rsrc_mutex); |
22916638 | 816 | switch (action) { |
1da177e4 | 817 | case ADD_MANAGED_RESOURCE: |
22916638 DB |
818 | if (add_interval(&data->io_db, start, size) != 0) { |
819 | ret = -EBUSY; | |
1da177e4 LT |
820 | break; |
821 | } | |
822 | #ifdef CONFIG_PCMCIA_PROBE | |
823 | if (probe_io) | |
22916638 | 824 | do_io_probe(s, start, size); |
1da177e4 LT |
825 | #endif |
826 | break; | |
827 | case REMOVE_MANAGED_RESOURCE: | |
22916638 | 828 | sub_interval(&data->io_db, start, size); |
1da177e4 LT |
829 | break; |
830 | default: | |
22916638 | 831 | ret = -EINVAL; |
1da177e4 LT |
832 | break; |
833 | } | |
7fe908dd | 834 | mutex_unlock(&rsrc_mutex); |
1da177e4 LT |
835 | |
836 | return ret; | |
837 | } | |
838 | ||
839 | ||
3c29976a DB |
840 | #ifdef CONFIG_PCI |
841 | static int nonstatic_autoadd_resources(struct pcmcia_socket *s) | |
842 | { | |
843 | struct resource *res; | |
844 | int i, done = 0; | |
845 | ||
846 | if (!s->cb_dev || !s->cb_dev->bus) | |
847 | return -ENODEV; | |
848 | ||
0d078f6f | 849 | #if defined(CONFIG_X86) |
b6d00f0d DB |
850 | /* If this is the root bus, the risk of hitting |
851 | * some strange system devices which aren't protected | |
852 | * by either ACPI resource tables or properly requested | |
853 | * resources is too big. Therefore, don't do auto-adding | |
854 | * of resources at the moment. | |
855 | */ | |
856 | if (s->cb_dev->bus->number == 0) | |
857 | return -EINVAL; | |
858 | #endif | |
859 | ||
9fea84f4 | 860 | for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { |
3c29976a DB |
861 | res = s->cb_dev->bus->resource[i]; |
862 | if (!res) | |
863 | continue; | |
864 | ||
865 | if (res->flags & IORESOURCE_IO) { | |
866 | if (res == &ioport_resource) | |
867 | continue; | |
dbe4ea5f DB |
868 | dev_printk(KERN_INFO, &s->cb_dev->dev, |
869 | "pcmcia: parent PCI bridge I/O " | |
870 | "window: 0x%llx - 0x%llx\n", | |
871 | (unsigned long long)res->start, | |
872 | (unsigned long long)res->end); | |
3c29976a DB |
873 | if (!adjust_io(s, ADD_MANAGED_RESOURCE, res->start, res->end)) |
874 | done |= IORESOURCE_IO; | |
875 | ||
876 | } | |
877 | ||
878 | if (res->flags & IORESOURCE_MEM) { | |
879 | if (res == &iomem_resource) | |
880 | continue; | |
dbe4ea5f DB |
881 | dev_printk(KERN_INFO, &s->cb_dev->dev, |
882 | "pcmcia: parent PCI bridge Memory " | |
883 | "window: 0x%llx - 0x%llx\n", | |
884 | (unsigned long long)res->start, | |
885 | (unsigned long long)res->end); | |
3c29976a DB |
886 | if (!adjust_memory(s, ADD_MANAGED_RESOURCE, res->start, res->end)) |
887 | done |= IORESOURCE_MEM; | |
888 | } | |
889 | } | |
890 | ||
891 | /* if we got at least one of IO, and one of MEM, we can be glad and | |
892 | * activate the PCMCIA subsystem */ | |
54bb5675 | 893 | if (done == (IORESOURCE_MEM | IORESOURCE_IO)) |
3c29976a DB |
894 | s->resource_setup_done = 1; |
895 | ||
896 | return 0; | |
897 | } | |
898 | ||
899 | #else | |
900 | ||
901 | static inline int nonstatic_autoadd_resources(struct pcmcia_socket *s) | |
902 | { | |
903 | return -ENODEV; | |
904 | } | |
905 | ||
906 | #endif | |
907 | ||
908 | ||
1da177e4 LT |
909 | static int nonstatic_init(struct pcmcia_socket *s) |
910 | { | |
911 | struct socket_data *data; | |
912 | ||
8084b372 | 913 | data = kzalloc(sizeof(struct socket_data), GFP_KERNEL); |
1da177e4 LT |
914 | if (!data) |
915 | return -ENOMEM; | |
1da177e4 LT |
916 | |
917 | data->mem_db.next = &data->mem_db; | |
918 | data->io_db.next = &data->io_db; | |
919 | ||
920 | s->resource_data = (void *) data; | |
921 | ||
3c29976a DB |
922 | nonstatic_autoadd_resources(s); |
923 | ||
1da177e4 LT |
924 | return 0; |
925 | } | |
926 | ||
927 | static void nonstatic_release_resource_db(struct pcmcia_socket *s) | |
928 | { | |
929 | struct socket_data *data = s->resource_data; | |
930 | struct resource_map *p, *q; | |
931 | ||
7fe908dd | 932 | mutex_lock(&rsrc_mutex); |
1da177e4 LT |
933 | for (p = data->mem_db.next; p != &data->mem_db; p = q) { |
934 | q = p->next; | |
935 | kfree(p); | |
936 | } | |
937 | for (p = data->io_db.next; p != &data->io_db; p = q) { | |
938 | q = p->next; | |
939 | kfree(p); | |
940 | } | |
7fe908dd | 941 | mutex_unlock(&rsrc_mutex); |
1da177e4 LT |
942 | } |
943 | ||
944 | ||
945 | struct pccard_resource_ops pccard_nonstatic_ops = { | |
946 | .validate_mem = pcmcia_nonstatic_validate_mem, | |
947 | .adjust_io_region = nonstatic_adjust_io_region, | |
948 | .find_io = nonstatic_find_io_region, | |
949 | .find_mem = nonstatic_find_mem_region, | |
c5023801 DB |
950 | .add_io = adjust_io, |
951 | .add_mem = adjust_memory, | |
1da177e4 LT |
952 | .init = nonstatic_init, |
953 | .exit = nonstatic_release_resource_db, | |
954 | }; | |
955 | EXPORT_SYMBOL(pccard_nonstatic_ops); | |
956 | ||
957 | ||
958 | /* sysfs interface to the resource database */ | |
959 | ||
87373318 GKH |
960 | static ssize_t show_io_db(struct device *dev, |
961 | struct device_attribute *attr, char *buf) | |
1da177e4 | 962 | { |
87373318 | 963 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
1da177e4 LT |
964 | struct socket_data *data; |
965 | struct resource_map *p; | |
966 | ssize_t ret = 0; | |
967 | ||
7fe908dd | 968 | mutex_lock(&rsrc_mutex); |
1da177e4 LT |
969 | data = s->resource_data; |
970 | ||
971 | for (p = data->io_db.next; p != &data->io_db; p = p->next) { | |
972 | if (ret > (PAGE_SIZE - 10)) | |
973 | continue; | |
9fea84f4 DB |
974 | ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1), |
975 | "0x%08lx - 0x%08lx\n", | |
976 | ((unsigned long) p->base), | |
977 | ((unsigned long) p->base + p->num - 1)); | |
1da177e4 LT |
978 | } |
979 | ||
7fe908dd | 980 | mutex_unlock(&rsrc_mutex); |
9fea84f4 | 981 | return ret; |
1da177e4 LT |
982 | } |
983 | ||
87373318 GKH |
984 | static ssize_t store_io_db(struct device *dev, |
985 | struct device_attribute *attr, | |
986 | const char *buf, size_t count) | |
1da177e4 | 987 | { |
87373318 | 988 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
1da177e4 | 989 | unsigned long start_addr, end_addr; |
22916638 | 990 | unsigned int add = ADD_MANAGED_RESOURCE; |
1da177e4 LT |
991 | ssize_t ret = 0; |
992 | ||
9fea84f4 | 993 | ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); |
1da177e4 | 994 | if (ret != 2) { |
9fea84f4 | 995 | ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); |
22916638 | 996 | add = REMOVE_MANAGED_RESOURCE; |
1da177e4 | 997 | if (ret != 2) { |
9fea84f4 DB |
998 | ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr, |
999 | &end_addr); | |
22916638 | 1000 | add = ADD_MANAGED_RESOURCE; |
1da177e4 LT |
1001 | if (ret != 2) |
1002 | return -EINVAL; | |
1003 | } | |
1004 | } | |
1146bc74 | 1005 | if (end_addr < start_addr) |
1da177e4 LT |
1006 | return -EINVAL; |
1007 | ||
22916638 | 1008 | ret = adjust_io(s, add, start_addr, end_addr); |
3c29976a DB |
1009 | if (!ret) |
1010 | s->resource_setup_new = 1; | |
1da177e4 LT |
1011 | |
1012 | return ret ? ret : count; | |
1013 | } | |
87373318 | 1014 | static DEVICE_ATTR(available_resources_io, 0600, show_io_db, store_io_db); |
1da177e4 | 1015 | |
87373318 GKH |
1016 | static ssize_t show_mem_db(struct device *dev, |
1017 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1018 | { |
87373318 | 1019 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
1da177e4 LT |
1020 | struct socket_data *data; |
1021 | struct resource_map *p; | |
1022 | ssize_t ret = 0; | |
1023 | ||
7fe908dd | 1024 | mutex_lock(&rsrc_mutex); |
1da177e4 LT |
1025 | data = s->resource_data; |
1026 | ||
1027 | for (p = data->mem_db.next; p != &data->mem_db; p = p->next) { | |
1028 | if (ret > (PAGE_SIZE - 10)) | |
1029 | continue; | |
9fea84f4 DB |
1030 | ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1), |
1031 | "0x%08lx - 0x%08lx\n", | |
1032 | ((unsigned long) p->base), | |
1033 | ((unsigned long) p->base + p->num - 1)); | |
1da177e4 LT |
1034 | } |
1035 | ||
7fe908dd | 1036 | mutex_unlock(&rsrc_mutex); |
9fea84f4 | 1037 | return ret; |
1da177e4 LT |
1038 | } |
1039 | ||
87373318 GKH |
1040 | static ssize_t store_mem_db(struct device *dev, |
1041 | struct device_attribute *attr, | |
1042 | const char *buf, size_t count) | |
1da177e4 | 1043 | { |
87373318 | 1044 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
1da177e4 | 1045 | unsigned long start_addr, end_addr; |
22916638 | 1046 | unsigned int add = ADD_MANAGED_RESOURCE; |
1da177e4 LT |
1047 | ssize_t ret = 0; |
1048 | ||
9fea84f4 | 1049 | ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); |
1da177e4 | 1050 | if (ret != 2) { |
9fea84f4 | 1051 | ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); |
22916638 | 1052 | add = REMOVE_MANAGED_RESOURCE; |
1da177e4 | 1053 | if (ret != 2) { |
9fea84f4 DB |
1054 | ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr, |
1055 | &end_addr); | |
22916638 | 1056 | add = ADD_MANAGED_RESOURCE; |
1da177e4 LT |
1057 | if (ret != 2) |
1058 | return -EINVAL; | |
1059 | } | |
1060 | } | |
1146bc74 | 1061 | if (end_addr < start_addr) |
1da177e4 LT |
1062 | return -EINVAL; |
1063 | ||
22916638 | 1064 | ret = adjust_memory(s, add, start_addr, end_addr); |
3c29976a DB |
1065 | if (!ret) |
1066 | s->resource_setup_new = 1; | |
1da177e4 LT |
1067 | |
1068 | return ret ? ret : count; | |
1069 | } | |
87373318 | 1070 | static DEVICE_ATTR(available_resources_mem, 0600, show_mem_db, store_mem_db); |
1da177e4 | 1071 | |
7d578961 DB |
1072 | static struct attribute *pccard_rsrc_attributes[] = { |
1073 | &dev_attr_available_resources_io.attr, | |
1074 | &dev_attr_available_resources_mem.attr, | |
1da177e4 LT |
1075 | NULL, |
1076 | }; | |
1077 | ||
7d578961 DB |
1078 | static const struct attribute_group rsrc_attributes = { |
1079 | .attrs = pccard_rsrc_attributes, | |
1080 | }; | |
1081 | ||
87373318 | 1082 | static int __devinit pccard_sysfs_add_rsrc(struct device *dev, |
d8539d81 | 1083 | struct class_interface *class_intf) |
1da177e4 | 1084 | { |
87373318 | 1085 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
7d578961 | 1086 | |
1da177e4 LT |
1087 | if (s->resource_ops != &pccard_nonstatic_ops) |
1088 | return 0; | |
7d578961 | 1089 | return sysfs_create_group(&dev->kobj, &rsrc_attributes); |
1da177e4 LT |
1090 | } |
1091 | ||
87373318 | 1092 | static void __devexit pccard_sysfs_remove_rsrc(struct device *dev, |
d8539d81 | 1093 | struct class_interface *class_intf) |
1da177e4 | 1094 | { |
87373318 | 1095 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
1da177e4 LT |
1096 | |
1097 | if (s->resource_ops != &pccard_nonstatic_ops) | |
1098 | return; | |
7d578961 | 1099 | sysfs_remove_group(&dev->kobj, &rsrc_attributes); |
1da177e4 LT |
1100 | } |
1101 | ||
ed49f5d0 | 1102 | static struct class_interface pccard_rsrc_interface __refdata = { |
1da177e4 | 1103 | .class = &pcmcia_socket_class, |
87373318 GKH |
1104 | .add_dev = &pccard_sysfs_add_rsrc, |
1105 | .remove_dev = __devexit_p(&pccard_sysfs_remove_rsrc), | |
1da177e4 LT |
1106 | }; |
1107 | ||
1108 | static int __init nonstatic_sysfs_init(void) | |
1109 | { | |
1110 | return class_interface_register(&pccard_rsrc_interface); | |
1111 | } | |
1112 | ||
1113 | static void __exit nonstatic_sysfs_exit(void) | |
1114 | { | |
1115 | class_interface_unregister(&pccard_rsrc_interface); | |
1116 | } | |
1117 | ||
1118 | module_init(nonstatic_sysfs_init); | |
1119 | module_exit(nonstatic_sysfs_exit); |