Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * cistpl.c -- 16-bit PCMCIA Card Information Structure parser | |
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/kernel.h> | |
18 | #include <linux/string.h> | |
19 | #include <linux/major.h> | |
20 | #include <linux/errno.h> | |
21 | #include <linux/timer.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/mm.h> | |
1da177e4 LT |
24 | #include <linux/pci.h> |
25 | #include <linux/ioport.h> | |
9fea84f4 | 26 | #include <linux/io.h> |
1da177e4 | 27 | #include <asm/byteorder.h> |
dc0cf6a2 | 28 | #include <asm/unaligned.h> |
1da177e4 | 29 | |
1da177e4 | 30 | #include <pcmcia/ss.h> |
1da177e4 LT |
31 | #include <pcmcia/cisreg.h> |
32 | #include <pcmcia/cistpl.h> | |
33 | #include "cs_internal.h" | |
34 | ||
35 | static const u_char mantissa[] = { | |
36 | 10, 12, 13, 15, 20, 25, 30, 35, | |
37 | 40, 45, 50, 55, 60, 70, 80, 90 | |
38 | }; | |
39 | ||
40 | static const u_int exponent[] = { | |
41 | 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 | |
42 | }; | |
43 | ||
44 | /* Convert an extended speed byte to a time in nanoseconds */ | |
45 | #define SPEED_CVT(v) \ | |
46 | (mantissa[(((v)>>3)&15)-1] * exponent[(v)&7] / 10) | |
47 | /* Convert a power byte to a current in 0.1 microamps */ | |
48 | #define POWER_CVT(v) \ | |
49 | (mantissa[((v)>>3)&15] * exponent[(v)&7] / 10) | |
50 | #define POWER_SCALE(v) (exponent[(v)&7]) | |
51 | ||
52 | /* Upper limit on reasonable # of tuples */ | |
53 | #define MAX_TUPLES 200 | |
54 | ||
a3d0d4d8 DB |
55 | /* Bits in IRQInfo1 field */ |
56 | #define IRQ_INFO2_VALID 0x10 | |
57 | ||
37f77955 PM |
58 | /* 16-bit CIS? */ |
59 | static int cis_width; | |
60 | module_param(cis_width, int, 0444); | |
1da177e4 LT |
61 | |
62 | void release_cis_mem(struct pcmcia_socket *s) | |
63 | { | |
6e83ee07 DB |
64 | mutex_lock(&s->ops_mutex); |
65 | if (s->cis_mem.flags & MAP_ACTIVE) { | |
66 | s->cis_mem.flags &= ~MAP_ACTIVE; | |
67 | s->ops->set_mem_map(s, &s->cis_mem); | |
68 | if (s->cis_mem.res) { | |
69 | release_resource(s->cis_mem.res); | |
70 | kfree(s->cis_mem.res); | |
71 | s->cis_mem.res = NULL; | |
72 | } | |
73 | iounmap(s->cis_virt); | |
74 | s->cis_virt = NULL; | |
1da177e4 | 75 | } |
6e83ee07 | 76 | mutex_unlock(&s->ops_mutex); |
1da177e4 | 77 | } |
1da177e4 | 78 | |
6e83ee07 DB |
79 | /** |
80 | * set_cis_map() - map the card memory at "card_offset" into virtual space. | |
81 | * | |
1da177e4 LT |
82 | * If flags & MAP_ATTRIB, map the attribute space, otherwise |
83 | * map the memory space. | |
7ab24855 DB |
84 | * |
85 | * Must be called with ops_mutex held. | |
1da177e4 | 86 | */ |
6e83ee07 DB |
87 | static void __iomem *set_cis_map(struct pcmcia_socket *s, |
88 | unsigned int card_offset, unsigned int flags) | |
1da177e4 | 89 | { |
2e5a3e79 DB |
90 | pccard_mem_map *mem = &s->cis_mem; |
91 | int ret; | |
92 | ||
93 | if (!(s->features & SS_CAP_STATIC_MAP) && (mem->res == NULL)) { | |
6e83ee07 DB |
94 | mem->res = pcmcia_find_mem_region(0, s->map_size, |
95 | s->map_size, 0, s); | |
2e5a3e79 | 96 | if (mem->res == NULL) { |
2e55bf6b DB |
97 | dev_printk(KERN_NOTICE, &s->dev, |
98 | "cs: unable to map card memory!\n"); | |
2e5a3e79 DB |
99 | return NULL; |
100 | } | |
101 | s->cis_virt = NULL; | |
1da177e4 | 102 | } |
2ad0a0a7 | 103 | |
2e5a3e79 DB |
104 | if (!(s->features & SS_CAP_STATIC_MAP) && (!s->cis_virt)) |
105 | s->cis_virt = ioremap(mem->res->start, s->map_size); | |
106 | ||
107 | mem->card_start = card_offset; | |
108 | mem->flags = flags; | |
109 | ||
110 | ret = s->ops->set_mem_map(s, mem); | |
111 | if (ret) { | |
112 | iounmap(s->cis_virt); | |
113 | s->cis_virt = NULL; | |
114 | return NULL; | |
115 | } | |
116 | ||
117 | if (s->features & SS_CAP_STATIC_MAP) { | |
118 | if (s->cis_virt) | |
119 | iounmap(s->cis_virt); | |
120 | s->cis_virt = ioremap(mem->static_start, s->map_size); | |
121 | } | |
122 | ||
123 | return s->cis_virt; | |
1da177e4 LT |
124 | } |
125 | ||
1da177e4 LT |
126 | |
127 | /* Bits in attr field */ | |
128 | #define IS_ATTR 1 | |
129 | #define IS_INDIRECT 8 | |
130 | ||
6e83ee07 DB |
131 | /** |
132 | * pcmcia_read_cis_mem() - low-level function to read CIS memory | |
059f667d DB |
133 | * |
134 | * must be called with ops_mutex held | |
6e83ee07 | 135 | */ |
e6ea0b9e | 136 | int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, |
1da177e4 LT |
137 | u_int len, void *ptr) |
138 | { | |
6e83ee07 DB |
139 | void __iomem *sys, *end; |
140 | unsigned char *buf = ptr; | |
1da177e4 | 141 | |
6e83ee07 | 142 | dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len); |
1da177e4 | 143 | |
6e83ee07 DB |
144 | if (attr & IS_INDIRECT) { |
145 | /* Indirect accesses use a bunch of special registers at fixed | |
146 | locations in common memory */ | |
147 | u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN; | |
148 | if (attr & IS_ATTR) { | |
149 | addr *= 2; | |
150 | flags = ICTRL0_AUTOINC; | |
151 | } | |
1da177e4 | 152 | |
6e83ee07 DB |
153 | sys = set_cis_map(s, 0, MAP_ACTIVE | |
154 | ((cis_width) ? MAP_16BIT : 0)); | |
155 | if (!sys) { | |
156 | dev_dbg(&s->dev, "could not map memory\n"); | |
157 | memset(ptr, 0xff, len); | |
6e83ee07 DB |
158 | return -1; |
159 | } | |
160 | ||
161 | writeb(flags, sys+CISREG_ICTRL0); | |
162 | writeb(addr & 0xff, sys+CISREG_IADDR0); | |
163 | writeb((addr>>8) & 0xff, sys+CISREG_IADDR1); | |
164 | writeb((addr>>16) & 0xff, sys+CISREG_IADDR2); | |
165 | writeb((addr>>24) & 0xff, sys+CISREG_IADDR3); | |
166 | for ( ; len > 0; len--, buf++) | |
167 | *buf = readb(sys+CISREG_IDATA0); | |
168 | } else { | |
169 | u_int inc = 1, card_offset, flags; | |
170 | ||
171 | if (addr > CISTPL_MAX_CIS_SIZE) | |
172 | dev_dbg(&s->dev, | |
173 | "attempt to read CIS mem at addr %#x", addr); | |
174 | ||
175 | flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0); | |
176 | if (attr) { | |
177 | flags |= MAP_ATTRIB; | |
178 | inc++; | |
179 | addr *= 2; | |
180 | } | |
181 | ||
182 | card_offset = addr & ~(s->map_size-1); | |
183 | while (len) { | |
184 | sys = set_cis_map(s, card_offset, flags); | |
185 | if (!sys) { | |
186 | dev_dbg(&s->dev, "could not map memory\n"); | |
187 | memset(ptr, 0xff, len); | |
6e83ee07 DB |
188 | return -1; |
189 | } | |
190 | end = sys + s->map_size; | |
191 | sys = sys + (addr & (s->map_size-1)); | |
192 | for ( ; len > 0; len--, buf++, sys += inc) { | |
193 | if (sys == end) | |
194 | break; | |
195 | *buf = readb(sys); | |
196 | } | |
197 | card_offset += s->map_size; | |
198 | addr = 0; | |
199 | } | |
1da177e4 | 200 | } |
6e83ee07 DB |
201 | dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n", |
202 | *(u_char *)(ptr+0), *(u_char *)(ptr+1), | |
203 | *(u_char *)(ptr+2), *(u_char *)(ptr+3)); | |
204 | return 0; | |
1da177e4 | 205 | } |
1a8d4663 | 206 | |
1da177e4 | 207 | |
6e83ee07 DB |
208 | /** |
209 | * pcmcia_write_cis_mem() - low-level function to write CIS memory | |
210 | * | |
059f667d DB |
211 | * Probably only useful for writing one-byte registers. Must be called |
212 | * with ops_mutex held. | |
6e83ee07 | 213 | */ |
1d5cc192 | 214 | int pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, |
1da177e4 LT |
215 | u_int len, void *ptr) |
216 | { | |
6e83ee07 DB |
217 | void __iomem *sys, *end; |
218 | unsigned char *buf = ptr; | |
1da177e4 | 219 | |
6e83ee07 DB |
220 | dev_dbg(&s->dev, |
221 | "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len); | |
1da177e4 | 222 | |
6e83ee07 DB |
223 | if (attr & IS_INDIRECT) { |
224 | /* Indirect accesses use a bunch of special registers at fixed | |
225 | locations in common memory */ | |
226 | u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN; | |
227 | if (attr & IS_ATTR) { | |
228 | addr *= 2; | |
229 | flags = ICTRL0_AUTOINC; | |
230 | } | |
1da177e4 | 231 | |
6e83ee07 DB |
232 | sys = set_cis_map(s, 0, MAP_ACTIVE | |
233 | ((cis_width) ? MAP_16BIT : 0)); | |
234 | if (!sys) { | |
235 | dev_dbg(&s->dev, "could not map memory\n"); | |
1d5cc192 | 236 | return -EINVAL; |
6e83ee07 | 237 | } |
1a8d4663 | 238 | |
6e83ee07 DB |
239 | writeb(flags, sys+CISREG_ICTRL0); |
240 | writeb(addr & 0xff, sys+CISREG_IADDR0); | |
241 | writeb((addr>>8) & 0xff, sys+CISREG_IADDR1); | |
242 | writeb((addr>>16) & 0xff, sys+CISREG_IADDR2); | |
243 | writeb((addr>>24) & 0xff, sys+CISREG_IADDR3); | |
244 | for ( ; len > 0; len--, buf++) | |
245 | writeb(*buf, sys+CISREG_IDATA0); | |
246 | } else { | |
247 | u_int inc = 1, card_offset, flags; | |
1da177e4 | 248 | |
6e83ee07 DB |
249 | flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0); |
250 | if (attr & IS_ATTR) { | |
251 | flags |= MAP_ATTRIB; | |
252 | inc++; | |
253 | addr *= 2; | |
254 | } | |
1da177e4 | 255 | |
6e83ee07 DB |
256 | card_offset = addr & ~(s->map_size-1); |
257 | while (len) { | |
258 | sys = set_cis_map(s, card_offset, flags); | |
259 | if (!sys) { | |
260 | dev_dbg(&s->dev, "could not map memory\n"); | |
1d5cc192 | 261 | return -EINVAL; |
6e83ee07 DB |
262 | } |
263 | ||
264 | end = sys + s->map_size; | |
265 | sys = sys + (addr & (s->map_size-1)); | |
266 | for ( ; len > 0; len--, buf++, sys += inc) { | |
267 | if (sys == end) | |
268 | break; | |
269 | writeb(*buf, sys); | |
270 | } | |
271 | card_offset += s->map_size; | |
272 | addr = 0; | |
273 | } | |
274 | } | |
1d5cc192 | 275 | return 0; |
6e83ee07 | 276 | } |
9fea84f4 | 277 | |
1da177e4 | 278 | |
6e83ee07 DB |
279 | /** |
280 | * read_cis_cache() - read CIS memory or its associated cache | |
281 | * | |
282 | * This is a wrapper around read_cis_mem, with the same interface, | |
283 | * but which caches information, for cards whose CIS may not be | |
284 | * readable all the time. | |
285 | */ | |
d700518a DB |
286 | static int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, |
287 | size_t len, void *ptr) | |
1da177e4 | 288 | { |
57197b9b | 289 | struct cis_cache_entry *cis; |
d700518a | 290 | int ret = 0; |
1da177e4 | 291 | |
57197b9b | 292 | if (s->state & SOCKET_CARDBUS) |
d700518a | 293 | return -EINVAL; |
1da177e4 | 294 | |
8680c4b3 | 295 | mutex_lock(&s->ops_mutex); |
57197b9b DB |
296 | if (s->fake_cis) { |
297 | if (s->fake_cis_len >= addr+len) | |
298 | memcpy(ptr, s->fake_cis+addr, len); | |
d700518a | 299 | else { |
57197b9b | 300 | memset(ptr, 0xff, len); |
d700518a DB |
301 | ret = -EINVAL; |
302 | } | |
8680c4b3 | 303 | mutex_unlock(&s->ops_mutex); |
d700518a | 304 | return ret; |
57197b9b DB |
305 | } |
306 | ||
307 | list_for_each_entry(cis, &s->cis_cache, node) { | |
308 | if (cis->addr == addr && cis->len == len && cis->attr == attr) { | |
309 | memcpy(ptr, cis->cache, len); | |
8680c4b3 | 310 | mutex_unlock(&s->ops_mutex); |
d700518a | 311 | return 0; |
57197b9b | 312 | } |
1da177e4 | 313 | } |
1da177e4 | 314 | |
e6ea0b9e | 315 | ret = pcmcia_read_cis_mem(s, attr, addr, len, ptr); |
1da177e4 LT |
316 | |
317 | if (ret == 0) { | |
318 | /* Copy data into the cache */ | |
319 | cis = kmalloc(sizeof(struct cis_cache_entry) + len, GFP_KERNEL); | |
320 | if (cis) { | |
321 | cis->addr = addr; | |
322 | cis->len = len; | |
323 | cis->attr = attr; | |
324 | memcpy(cis->cache, ptr, len); | |
325 | list_add(&cis->node, &s->cis_cache); | |
326 | } | |
327 | } | |
059f667d DB |
328 | mutex_unlock(&s->ops_mutex); |
329 | ||
d700518a | 330 | return ret; |
1da177e4 LT |
331 | } |
332 | ||
333 | static void | |
334 | remove_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, u_int len) | |
335 | { | |
336 | struct cis_cache_entry *cis; | |
337 | ||
8680c4b3 | 338 | mutex_lock(&s->ops_mutex); |
1da177e4 LT |
339 | list_for_each_entry(cis, &s->cis_cache, node) |
340 | if (cis->addr == addr && cis->len == len && cis->attr == attr) { | |
341 | list_del(&cis->node); | |
342 | kfree(cis); | |
343 | break; | |
344 | } | |
8680c4b3 | 345 | mutex_unlock(&s->ops_mutex); |
1da177e4 LT |
346 | } |
347 | ||
904e3777 DB |
348 | /** |
349 | * destroy_cis_cache() - destroy the CIS cache | |
350 | * @s: pcmcia_socket for which CIS cache shall be destroyed | |
351 | * | |
8680c4b3 DB |
352 | * This destroys the CIS cache but keeps any fake CIS alive. Must be |
353 | * called with ops_mutex held. | |
904e3777 | 354 | */ |
1da177e4 LT |
355 | void destroy_cis_cache(struct pcmcia_socket *s) |
356 | { | |
357 | struct list_head *l, *n; | |
904e3777 | 358 | struct cis_cache_entry *cis; |
1da177e4 LT |
359 | |
360 | list_for_each_safe(l, n, &s->cis_cache) { | |
904e3777 | 361 | cis = list_entry(l, struct cis_cache_entry, node); |
1da177e4 LT |
362 | list_del(&cis->node); |
363 | kfree(cis); | |
364 | } | |
1da177e4 | 365 | } |
1da177e4 | 366 | |
6e83ee07 DB |
367 | /** |
368 | * verify_cis_cache() - does the CIS match what is in the CIS cache? | |
369 | */ | |
1da177e4 LT |
370 | int verify_cis_cache(struct pcmcia_socket *s) |
371 | { | |
372 | struct cis_cache_entry *cis; | |
373 | char *buf; | |
d700518a | 374 | int ret; |
1da177e4 | 375 | |
57197b9b DB |
376 | if (s->state & SOCKET_CARDBUS) |
377 | return -EINVAL; | |
378 | ||
1da177e4 | 379 | buf = kmalloc(256, GFP_KERNEL); |
e689597f | 380 | if (buf == NULL) { |
1168386a DB |
381 | dev_printk(KERN_WARNING, &s->dev, |
382 | "no memory for verifying CIS\n"); | |
383 | return -ENOMEM; | |
e689597f | 384 | } |
059f667d | 385 | mutex_lock(&s->ops_mutex); |
1da177e4 LT |
386 | list_for_each_entry(cis, &s->cis_cache, node) { |
387 | int len = cis->len; | |
388 | ||
389 | if (len > 256) | |
390 | len = 256; | |
57197b9b | 391 | |
d700518a DB |
392 | ret = pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf); |
393 | if (ret || memcmp(buf, cis->cache, len) != 0) { | |
1da177e4 | 394 | kfree(buf); |
059f667d | 395 | mutex_unlock(&s->ops_mutex); |
1da177e4 LT |
396 | return -1; |
397 | } | |
398 | } | |
399 | kfree(buf); | |
059f667d | 400 | mutex_unlock(&s->ops_mutex); |
1da177e4 LT |
401 | return 0; |
402 | } | |
403 | ||
6e83ee07 DB |
404 | /** |
405 | * pcmcia_replace_cis() - use a replacement CIS instead of the card's CIS | |
406 | * | |
407 | * For really bad cards, we provide a facility for uploading a | |
408 | * replacement CIS. | |
409 | */ | |
53efec95 DB |
410 | int pcmcia_replace_cis(struct pcmcia_socket *s, |
411 | const u8 *data, const size_t len) | |
1da177e4 | 412 | { |
1168386a DB |
413 | if (len > CISTPL_MAX_CIS_SIZE) { |
414 | dev_printk(KERN_WARNING, &s->dev, "replacement CIS too big\n"); | |
415 | return -EINVAL; | |
416 | } | |
8680c4b3 | 417 | mutex_lock(&s->ops_mutex); |
1168386a DB |
418 | kfree(s->fake_cis); |
419 | s->fake_cis = kmalloc(len, GFP_KERNEL); | |
420 | if (s->fake_cis == NULL) { | |
421 | dev_printk(KERN_WARNING, &s->dev, "no memory to replace CIS\n"); | |
8680c4b3 | 422 | mutex_unlock(&s->ops_mutex); |
1168386a DB |
423 | return -ENOMEM; |
424 | } | |
425 | s->fake_cis_len = len; | |
426 | memcpy(s->fake_cis, data, len); | |
d700518a | 427 | dev_info(&s->dev, "Using replacement CIS\n"); |
8680c4b3 | 428 | mutex_unlock(&s->ops_mutex); |
1168386a | 429 | return 0; |
1da177e4 LT |
430 | } |
431 | ||
6e83ee07 | 432 | /* The high-level CIS tuple services */ |
1da177e4 LT |
433 | |
434 | typedef struct tuple_flags { | |
6e83ee07 DB |
435 | u_int link_space:4; |
436 | u_int has_link:1; | |
437 | u_int mfc_fn:3; | |
438 | u_int space:4; | |
1da177e4 LT |
439 | } tuple_flags; |
440 | ||
441 | #define LINK_SPACE(f) (((tuple_flags *)(&(f)))->link_space) | |
442 | #define HAS_LINK(f) (((tuple_flags *)(&(f)))->has_link) | |
443 | #define MFC_FN(f) (((tuple_flags *)(&(f)))->mfc_fn) | |
444 | #define SPACE(f) (((tuple_flags *)(&(f)))->space) | |
445 | ||
6e83ee07 DB |
446 | int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, |
447 | tuple_t *tuple) | |
1da177e4 | 448 | { |
6e83ee07 DB |
449 | if (!s) |
450 | return -EINVAL; | |
451 | ||
452 | if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS)) | |
453 | return -ENODEV; | |
454 | tuple->TupleLink = tuple->Flags = 0; | |
455 | ||
456 | /* Assume presence of a LONGLINK_C to address 0 */ | |
457 | tuple->CISOffset = tuple->LinkOffset = 0; | |
458 | SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1; | |
459 | ||
460 | if ((s->functions > 1) && !(tuple->Attributes & TUPLE_RETURN_COMMON)) { | |
461 | cisdata_t req = tuple->DesiredTuple; | |
462 | tuple->DesiredTuple = CISTPL_LONGLINK_MFC; | |
463 | if (pccard_get_next_tuple(s, function, tuple) == 0) { | |
464 | tuple->DesiredTuple = CISTPL_LINKTARGET; | |
465 | if (pccard_get_next_tuple(s, function, tuple) != 0) | |
466 | return -ENOSPC; | |
467 | } else | |
468 | tuple->CISOffset = tuple->TupleLink = 0; | |
469 | tuple->DesiredTuple = req; | |
470 | } | |
471 | return pccard_get_next_tuple(s, function, tuple); | |
1da177e4 | 472 | } |
1da177e4 LT |
473 | |
474 | static int follow_link(struct pcmcia_socket *s, tuple_t *tuple) | |
475 | { | |
6e83ee07 DB |
476 | u_char link[5]; |
477 | u_int ofs; | |
478 | int ret; | |
479 | ||
480 | if (MFC_FN(tuple->Flags)) { | |
481 | /* Get indirect link from the MFC tuple */ | |
482 | ret = read_cis_cache(s, LINK_SPACE(tuple->Flags), | |
483 | tuple->LinkOffset, 5, link); | |
484 | if (ret) | |
485 | return -1; | |
486 | ofs = get_unaligned_le32(link + 1); | |
487 | SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR); | |
488 | /* Move to the next indirect link */ | |
489 | tuple->LinkOffset += 5; | |
490 | MFC_FN(tuple->Flags)--; | |
491 | } else if (HAS_LINK(tuple->Flags)) { | |
492 | ofs = tuple->LinkOffset; | |
493 | SPACE(tuple->Flags) = LINK_SPACE(tuple->Flags); | |
494 | HAS_LINK(tuple->Flags) = 0; | |
495 | } else | |
d700518a | 496 | return -1; |
6e83ee07 DB |
497 | |
498 | if (SPACE(tuple->Flags)) { | |
499 | /* This is ugly, but a common CIS error is to code the long | |
500 | link offset incorrectly, so we check the right spot... */ | |
501 | ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); | |
502 | if (ret) | |
503 | return -1; | |
504 | if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) && | |
505 | (strncmp(link+2, "CIS", 3) == 0)) | |
506 | return ofs; | |
507 | remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5); | |
508 | /* Then, we try the wrong spot... */ | |
509 | ofs = ofs >> 1; | |
510 | } | |
d700518a DB |
511 | ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); |
512 | if (ret) | |
513 | return -1; | |
1da177e4 | 514 | if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) && |
6e83ee07 DB |
515 | (strncmp(link+2, "CIS", 3) == 0)) |
516 | return ofs; | |
1da177e4 | 517 | remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5); |
6e83ee07 | 518 | return -1; |
1da177e4 LT |
519 | } |
520 | ||
6e83ee07 DB |
521 | int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, |
522 | tuple_t *tuple) | |
1da177e4 | 523 | { |
6e83ee07 DB |
524 | u_char link[2], tmp; |
525 | int ofs, i, attr; | |
526 | int ret; | |
9fea84f4 | 527 | |
6e83ee07 DB |
528 | if (!s) |
529 | return -EINVAL; | |
530 | if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS)) | |
531 | return -ENODEV; | |
1da177e4 | 532 | |
6e83ee07 DB |
533 | link[1] = tuple->TupleLink; |
534 | ofs = tuple->CISOffset + tuple->TupleLink; | |
535 | attr = SPACE(tuple->Flags); | |
536 | ||
537 | for (i = 0; i < MAX_TUPLES; i++) { | |
538 | if (link[1] == 0xff) | |
539 | link[0] = CISTPL_END; | |
540 | else { | |
541 | ret = read_cis_cache(s, attr, ofs, 2, link); | |
542 | if (ret) | |
543 | return -1; | |
544 | if (link[0] == CISTPL_NULL) { | |
545 | ofs++; | |
546 | continue; | |
547 | } | |
1da177e4 | 548 | } |
9fea84f4 | 549 | |
6e83ee07 DB |
550 | /* End of chain? Follow long link if possible */ |
551 | if (link[0] == CISTPL_END) { | |
552 | ofs = follow_link(s, tuple); | |
553 | if (ofs < 0) | |
554 | return -ENOSPC; | |
555 | attr = SPACE(tuple->Flags); | |
556 | ret = read_cis_cache(s, attr, ofs, 2, link); | |
557 | if (ret) | |
558 | return -1; | |
559 | } | |
1da177e4 | 560 | |
6e83ee07 DB |
561 | /* Is this a link tuple? Make a note of it */ |
562 | if ((link[0] == CISTPL_LONGLINK_A) || | |
563 | (link[0] == CISTPL_LONGLINK_C) || | |
564 | (link[0] == CISTPL_LONGLINK_MFC) || | |
565 | (link[0] == CISTPL_LINKTARGET) || | |
566 | (link[0] == CISTPL_INDIRECT) || | |
567 | (link[0] == CISTPL_NO_LINK)) { | |
568 | switch (link[0]) { | |
569 | case CISTPL_LONGLINK_A: | |
570 | HAS_LINK(tuple->Flags) = 1; | |
571 | LINK_SPACE(tuple->Flags) = attr | IS_ATTR; | |
572 | ret = read_cis_cache(s, attr, ofs+2, 4, | |
573 | &tuple->LinkOffset); | |
574 | if (ret) | |
575 | return -1; | |
576 | break; | |
577 | case CISTPL_LONGLINK_C: | |
578 | HAS_LINK(tuple->Flags) = 1; | |
579 | LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR; | |
580 | ret = read_cis_cache(s, attr, ofs+2, 4, | |
581 | &tuple->LinkOffset); | |
582 | if (ret) | |
583 | return -1; | |
584 | break; | |
585 | case CISTPL_INDIRECT: | |
586 | HAS_LINK(tuple->Flags) = 1; | |
587 | LINK_SPACE(tuple->Flags) = IS_ATTR | | |
588 | IS_INDIRECT; | |
589 | tuple->LinkOffset = 0; | |
590 | break; | |
591 | case CISTPL_LONGLINK_MFC: | |
592 | tuple->LinkOffset = ofs + 3; | |
593 | LINK_SPACE(tuple->Flags) = attr; | |
594 | if (function == BIND_FN_ALL) { | |
595 | /* Follow all the MFC links */ | |
596 | ret = read_cis_cache(s, attr, ofs+2, | |
597 | 1, &tmp); | |
598 | if (ret) | |
599 | return -1; | |
600 | MFC_FN(tuple->Flags) = tmp; | |
601 | } else { | |
602 | /* Follow exactly one of the links */ | |
603 | MFC_FN(tuple->Flags) = 1; | |
604 | tuple->LinkOffset += function * 5; | |
605 | } | |
606 | break; | |
607 | case CISTPL_NO_LINK: | |
608 | HAS_LINK(tuple->Flags) = 0; | |
609 | break; | |
610 | } | |
611 | if ((tuple->Attributes & TUPLE_RETURN_LINK) && | |
612 | (tuple->DesiredTuple == RETURN_FIRST_TUPLE)) | |
613 | break; | |
614 | } else | |
615 | if (tuple->DesiredTuple == RETURN_FIRST_TUPLE) | |
616 | break; | |
617 | ||
618 | if (link[0] == tuple->DesiredTuple) | |
619 | break; | |
620 | ofs += link[1] + 2; | |
621 | } | |
622 | if (i == MAX_TUPLES) { | |
623 | dev_dbg(&s->dev, "cs: overrun in pcmcia_get_next_tuple\n"); | |
624 | return -ENOSPC; | |
625 | } | |
1da177e4 | 626 | |
6e83ee07 DB |
627 | tuple->TupleCode = link[0]; |
628 | tuple->TupleLink = link[1]; | |
629 | tuple->CISOffset = ofs + 2; | |
630 | return 0; | |
631 | } | |
1da177e4 LT |
632 | |
633 | int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple) | |
634 | { | |
6e83ee07 DB |
635 | u_int len; |
636 | int ret; | |
1da177e4 | 637 | |
6e83ee07 DB |
638 | if (!s) |
639 | return -EINVAL; | |
1da177e4 | 640 | |
6e83ee07 DB |
641 | if (tuple->TupleLink < tuple->TupleOffset) |
642 | return -ENOSPC; | |
643 | len = tuple->TupleLink - tuple->TupleOffset; | |
644 | tuple->TupleDataLen = tuple->TupleLink; | |
645 | if (len == 0) | |
646 | return 0; | |
647 | ret = read_cis_cache(s, SPACE(tuple->Flags), | |
648 | tuple->CISOffset + tuple->TupleOffset, | |
649 | min(len, (u_int) tuple->TupleDataMax), | |
650 | tuple->TupleData); | |
651 | if (ret) | |
652 | return -1; | |
4c89e88b | 653 | return 0; |
1da177e4 | 654 | } |
1da177e4 LT |
655 | |
656 | ||
6e83ee07 | 657 | /* Parsing routines for individual tuples */ |
1da177e4 LT |
658 | |
659 | static int parse_device(tuple_t *tuple, cistpl_device_t *device) | |
660 | { | |
6e83ee07 DB |
661 | int i; |
662 | u_char scale; | |
663 | u_char *p, *q; | |
1da177e4 | 664 | |
6e83ee07 DB |
665 | p = (u_char *)tuple->TupleData; |
666 | q = p + tuple->TupleDataLen; | |
1da177e4 | 667 | |
6e83ee07 DB |
668 | device->ndev = 0; |
669 | for (i = 0; i < CISTPL_MAX_DEVICES; i++) { | |
9fea84f4 | 670 | |
6e83ee07 DB |
671 | if (*p == 0xff) |
672 | break; | |
673 | device->dev[i].type = (*p >> 4); | |
674 | device->dev[i].wp = (*p & 0x08) ? 1 : 0; | |
675 | switch (*p & 0x07) { | |
676 | case 0: | |
677 | device->dev[i].speed = 0; | |
678 | break; | |
679 | case 1: | |
680 | device->dev[i].speed = 250; | |
681 | break; | |
682 | case 2: | |
683 | device->dev[i].speed = 200; | |
684 | break; | |
685 | case 3: | |
686 | device->dev[i].speed = 150; | |
687 | break; | |
688 | case 4: | |
689 | device->dev[i].speed = 100; | |
690 | break; | |
691 | case 7: | |
9fea84f4 DB |
692 | if (++p == q) |
693 | return -EINVAL; | |
6e83ee07 DB |
694 | device->dev[i].speed = SPEED_CVT(*p); |
695 | while (*p & 0x80) | |
696 | if (++p == q) | |
697 | return -EINVAL; | |
698 | break; | |
699 | default: | |
700 | return -EINVAL; | |
701 | } | |
1da177e4 | 702 | |
6e83ee07 DB |
703 | if (++p == q) |
704 | return -EINVAL; | |
705 | if (*p == 0xff) | |
706 | break; | |
707 | scale = *p & 7; | |
708 | if (scale == 7) | |
709 | return -EINVAL; | |
710 | device->dev[i].size = ((*p >> 3) + 1) * (512 << (scale*2)); | |
711 | device->ndev++; | |
712 | if (++p == q) | |
713 | break; | |
714 | } | |
9fea84f4 | 715 | |
6e83ee07 | 716 | return 0; |
1da177e4 LT |
717 | } |
718 | ||
1da177e4 LT |
719 | |
720 | static int parse_checksum(tuple_t *tuple, cistpl_checksum_t *csum) | |
721 | { | |
6e83ee07 DB |
722 | u_char *p; |
723 | if (tuple->TupleDataLen < 5) | |
724 | return -EINVAL; | |
725 | p = (u_char *) tuple->TupleData; | |
726 | csum->addr = tuple->CISOffset + get_unaligned_le16(p) - 2; | |
727 | csum->len = get_unaligned_le16(p + 2); | |
728 | csum->sum = *(p + 4); | |
729 | return 0; | |
1da177e4 LT |
730 | } |
731 | ||
1da177e4 LT |
732 | |
733 | static int parse_longlink(tuple_t *tuple, cistpl_longlink_t *link) | |
734 | { | |
6e83ee07 DB |
735 | if (tuple->TupleDataLen < 4) |
736 | return -EINVAL; | |
737 | link->addr = get_unaligned_le32(tuple->TupleData); | |
738 | return 0; | |
1da177e4 LT |
739 | } |
740 | ||
1da177e4 | 741 | |
6e83ee07 | 742 | static int parse_longlink_mfc(tuple_t *tuple, cistpl_longlink_mfc_t *link) |
1da177e4 | 743 | { |
6e83ee07 DB |
744 | u_char *p; |
745 | int i; | |
746 | ||
747 | p = (u_char *)tuple->TupleData; | |
748 | ||
749 | link->nfn = *p; p++; | |
750 | if (tuple->TupleDataLen <= link->nfn*5) | |
751 | return -EINVAL; | |
752 | for (i = 0; i < link->nfn; i++) { | |
753 | link->fn[i].space = *p; p++; | |
754 | link->fn[i].addr = get_unaligned_le32(p); | |
755 | p += 4; | |
756 | } | |
757 | return 0; | |
1da177e4 LT |
758 | } |
759 | ||
1da177e4 LT |
760 | |
761 | static int parse_strings(u_char *p, u_char *q, int max, | |
762 | char *s, u_char *ofs, u_char *found) | |
763 | { | |
6e83ee07 | 764 | int i, j, ns; |
1da177e4 | 765 | |
6e83ee07 DB |
766 | if (p == q) |
767 | return -EINVAL; | |
768 | ns = 0; j = 0; | |
769 | for (i = 0; i < max; i++) { | |
770 | if (*p == 0xff) | |
771 | break; | |
772 | ofs[i] = j; | |
773 | ns++; | |
774 | for (;;) { | |
775 | s[j++] = (*p == 0xff) ? '\0' : *p; | |
776 | if ((*p == '\0') || (*p == 0xff)) | |
777 | break; | |
778 | if (++p == q) | |
779 | return -EINVAL; | |
780 | } | |
781 | if ((*p == 0xff) || (++p == q)) | |
782 | break; | |
1da177e4 | 783 | } |
6e83ee07 DB |
784 | if (found) { |
785 | *found = ns; | |
786 | return 0; | |
787 | } | |
788 | ||
3f9c5f4c | 789 | return (ns == max) ? 0 : -EINVAL; |
1da177e4 LT |
790 | } |
791 | ||
1da177e4 LT |
792 | |
793 | static int parse_vers_1(tuple_t *tuple, cistpl_vers_1_t *vers_1) | |
794 | { | |
6e83ee07 | 795 | u_char *p, *q; |
9fea84f4 | 796 | |
6e83ee07 DB |
797 | p = (u_char *)tuple->TupleData; |
798 | q = p + tuple->TupleDataLen; | |
9fea84f4 | 799 | |
6e83ee07 DB |
800 | vers_1->major = *p; p++; |
801 | vers_1->minor = *p; p++; | |
802 | if (p >= q) | |
803 | return -EINVAL; | |
1da177e4 | 804 | |
6e83ee07 DB |
805 | return parse_strings(p, q, CISTPL_VERS_1_MAX_PROD_STRINGS, |
806 | vers_1->str, vers_1->ofs, &vers_1->ns); | |
1da177e4 LT |
807 | } |
808 | ||
1da177e4 LT |
809 | |
810 | static int parse_altstr(tuple_t *tuple, cistpl_altstr_t *altstr) | |
811 | { | |
6e83ee07 | 812 | u_char *p, *q; |
9fea84f4 | 813 | |
6e83ee07 DB |
814 | p = (u_char *)tuple->TupleData; |
815 | q = p + tuple->TupleDataLen; | |
9fea84f4 | 816 | |
6e83ee07 DB |
817 | return parse_strings(p, q, CISTPL_MAX_ALTSTR_STRINGS, |
818 | altstr->str, altstr->ofs, &altstr->ns); | |
1da177e4 LT |
819 | } |
820 | ||
1da177e4 LT |
821 | |
822 | static int parse_jedec(tuple_t *tuple, cistpl_jedec_t *jedec) | |
823 | { | |
6e83ee07 DB |
824 | u_char *p, *q; |
825 | int nid; | |
1da177e4 | 826 | |
6e83ee07 DB |
827 | p = (u_char *)tuple->TupleData; |
828 | q = p + tuple->TupleDataLen; | |
1da177e4 | 829 | |
6e83ee07 DB |
830 | for (nid = 0; nid < CISTPL_MAX_DEVICES; nid++) { |
831 | if (p > q-2) | |
832 | break; | |
833 | jedec->id[nid].mfr = p[0]; | |
834 | jedec->id[nid].info = p[1]; | |
835 | p += 2; | |
836 | } | |
837 | jedec->nid = nid; | |
838 | return 0; | |
1da177e4 LT |
839 | } |
840 | ||
1da177e4 LT |
841 | |
842 | static int parse_manfid(tuple_t *tuple, cistpl_manfid_t *m) | |
843 | { | |
6e83ee07 DB |
844 | if (tuple->TupleDataLen < 4) |
845 | return -EINVAL; | |
846 | m->manf = get_unaligned_le16(tuple->TupleData); | |
847 | m->card = get_unaligned_le16(tuple->TupleData + 2); | |
848 | return 0; | |
1da177e4 LT |
849 | } |
850 | ||
1da177e4 LT |
851 | |
852 | static int parse_funcid(tuple_t *tuple, cistpl_funcid_t *f) | |
853 | { | |
6e83ee07 DB |
854 | u_char *p; |
855 | if (tuple->TupleDataLen < 2) | |
856 | return -EINVAL; | |
857 | p = (u_char *)tuple->TupleData; | |
858 | f->func = p[0]; | |
859 | f->sysinit = p[1]; | |
860 | return 0; | |
1da177e4 LT |
861 | } |
862 | ||
1da177e4 LT |
863 | |
864 | static int parse_funce(tuple_t *tuple, cistpl_funce_t *f) | |
865 | { | |
6e83ee07 DB |
866 | u_char *p; |
867 | int i; | |
868 | if (tuple->TupleDataLen < 1) | |
869 | return -EINVAL; | |
870 | p = (u_char *)tuple->TupleData; | |
871 | f->type = p[0]; | |
872 | for (i = 1; i < tuple->TupleDataLen; i++) | |
873 | f->data[i-1] = p[i]; | |
874 | return 0; | |
1da177e4 LT |
875 | } |
876 | ||
1da177e4 LT |
877 | |
878 | static int parse_config(tuple_t *tuple, cistpl_config_t *config) | |
879 | { | |
6e83ee07 DB |
880 | int rasz, rmsz, i; |
881 | u_char *p; | |
882 | ||
883 | p = (u_char *)tuple->TupleData; | |
884 | rasz = *p & 0x03; | |
885 | rmsz = (*p & 0x3c) >> 2; | |
886 | if (tuple->TupleDataLen < rasz+rmsz+4) | |
887 | return -EINVAL; | |
888 | config->last_idx = *(++p); | |
889 | p++; | |
890 | config->base = 0; | |
891 | for (i = 0; i <= rasz; i++) | |
892 | config->base += p[i] << (8*i); | |
893 | p += rasz+1; | |
894 | for (i = 0; i < 4; i++) | |
895 | config->rmask[i] = 0; | |
896 | for (i = 0; i <= rmsz; i++) | |
897 | config->rmask[i>>2] += p[i] << (8*(i%4)); | |
898 | config->subtuples = tuple->TupleDataLen - (rasz+rmsz+4); | |
899 | return 0; | |
1da177e4 LT |
900 | } |
901 | ||
6e83ee07 DB |
902 | /* The following routines are all used to parse the nightmarish |
903 | * config table entries. | |
904 | */ | |
1da177e4 | 905 | |
6e83ee07 DB |
906 | static u_char *parse_power(u_char *p, u_char *q, cistpl_power_t *pwr) |
907 | { | |
908 | int i; | |
909 | u_int scale; | |
910 | ||
911 | if (p == q) | |
912 | return NULL; | |
913 | pwr->present = *p; | |
914 | pwr->flags = 0; | |
915 | p++; | |
916 | for (i = 0; i < 7; i++) | |
917 | if (pwr->present & (1<<i)) { | |
918 | if (p == q) | |
919 | return NULL; | |
920 | pwr->param[i] = POWER_CVT(*p); | |
921 | scale = POWER_SCALE(*p); | |
922 | while (*p & 0x80) { | |
923 | if (++p == q) | |
924 | return NULL; | |
925 | if ((*p & 0x7f) < 100) | |
926 | pwr->param[i] += | |
927 | (*p & 0x7f) * scale / 100; | |
928 | else if (*p == 0x7d) | |
929 | pwr->flags |= CISTPL_POWER_HIGHZ_OK; | |
930 | else if (*p == 0x7e) | |
931 | pwr->param[i] = 0; | |
932 | else if (*p == 0x7f) | |
933 | pwr->flags |= CISTPL_POWER_HIGHZ_REQ; | |
934 | else | |
935 | return NULL; | |
936 | } | |
937 | p++; | |
938 | } | |
939 | return p; | |
940 | } | |
9fea84f4 | 941 | |
1da177e4 | 942 | |
6e83ee07 | 943 | static u_char *parse_timing(u_char *p, u_char *q, cistpl_timing_t *timing) |
1da177e4 | 944 | { |
6e83ee07 DB |
945 | u_char scale; |
946 | ||
947 | if (p == q) | |
948 | return NULL; | |
949 | scale = *p; | |
950 | if ((scale & 3) != 3) { | |
9fea84f4 DB |
951 | if (++p == q) |
952 | return NULL; | |
6e83ee07 DB |
953 | timing->wait = SPEED_CVT(*p); |
954 | timing->waitscale = exponent[scale & 3]; | |
955 | } else | |
956 | timing->wait = 0; | |
957 | scale >>= 2; | |
958 | if ((scale & 7) != 7) { | |
959 | if (++p == q) | |
960 | return NULL; | |
961 | timing->ready = SPEED_CVT(*p); | |
962 | timing->rdyscale = exponent[scale & 7]; | |
963 | } else | |
964 | timing->ready = 0; | |
965 | scale >>= 3; | |
966 | if (scale != 7) { | |
967 | if (++p == q) | |
968 | return NULL; | |
969 | timing->reserved = SPEED_CVT(*p); | |
970 | timing->rsvscale = exponent[scale]; | |
971 | } else | |
972 | timing->reserved = 0; | |
973 | p++; | |
974 | return p; | |
1da177e4 LT |
975 | } |
976 | ||
1da177e4 | 977 | |
6e83ee07 | 978 | static u_char *parse_io(u_char *p, u_char *q, cistpl_io_t *io) |
1da177e4 | 979 | { |
6e83ee07 | 980 | int i, j, bsz, lsz; |
1da177e4 | 981 | |
6e83ee07 | 982 | if (p == q) |
9fea84f4 | 983 | return NULL; |
6e83ee07 DB |
984 | io->flags = *p; |
985 | ||
986 | if (!(*p & 0x80)) { | |
987 | io->nwin = 1; | |
988 | io->win[0].base = 0; | |
989 | io->win[0].len = (1 << (io->flags & CISTPL_IO_LINES_MASK)); | |
990 | return p+1; | |
991 | } | |
992 | ||
9fea84f4 DB |
993 | if (++p == q) |
994 | return NULL; | |
6e83ee07 DB |
995 | io->nwin = (*p & 0x0f) + 1; |
996 | bsz = (*p & 0x30) >> 4; | |
997 | if (bsz == 3) | |
998 | bsz++; | |
999 | lsz = (*p & 0xc0) >> 6; | |
1000 | if (lsz == 3) | |
1001 | lsz++; | |
1002 | p++; | |
1da177e4 | 1003 | |
6e83ee07 DB |
1004 | for (i = 0; i < io->nwin; i++) { |
1005 | io->win[i].base = 0; | |
1006 | io->win[i].len = 1; | |
1007 | for (j = 0; j < bsz; j++, p++) { | |
1008 | if (p == q) | |
1009 | return NULL; | |
1010 | io->win[i].base += *p << (j*8); | |
1011 | } | |
1012 | for (j = 0; j < lsz; j++, p++) { | |
1013 | if (p == q) | |
1014 | return NULL; | |
1015 | io->win[i].len += *p << (j*8); | |
1016 | } | |
1da177e4 | 1017 | } |
6e83ee07 | 1018 | return p; |
1da177e4 LT |
1019 | } |
1020 | ||
1da177e4 LT |
1021 | |
1022 | static u_char *parse_mem(u_char *p, u_char *q, cistpl_mem_t *mem) | |
1023 | { | |
6e83ee07 DB |
1024 | int i, j, asz, lsz, has_ha; |
1025 | u_int len, ca, ha; | |
1026 | ||
1027 | if (p == q) | |
1028 | return NULL; | |
1029 | ||
1030 | mem->nwin = (*p & 0x07) + 1; | |
1031 | lsz = (*p & 0x18) >> 3; | |
1032 | asz = (*p & 0x60) >> 5; | |
1033 | has_ha = (*p & 0x80); | |
1034 | if (++p == q) | |
1035 | return NULL; | |
1036 | ||
1037 | for (i = 0; i < mem->nwin; i++) { | |
1038 | len = ca = ha = 0; | |
1039 | for (j = 0; j < lsz; j++, p++) { | |
1040 | if (p == q) | |
1041 | return NULL; | |
1042 | len += *p << (j*8); | |
1043 | } | |
1044 | for (j = 0; j < asz; j++, p++) { | |
1045 | if (p == q) | |
1046 | return NULL; | |
1047 | ca += *p << (j*8); | |
1048 | } | |
1049 | if (has_ha) | |
1050 | for (j = 0; j < asz; j++, p++) { | |
1051 | if (p == q) | |
1052 | return NULL; | |
1053 | ha += *p << (j*8); | |
1054 | } | |
1055 | mem->win[i].len = len << 8; | |
1056 | mem->win[i].card_addr = ca << 8; | |
1057 | mem->win[i].host_addr = ha << 8; | |
1da177e4 | 1058 | } |
6e83ee07 | 1059 | return p; |
1da177e4 LT |
1060 | } |
1061 | ||
1da177e4 LT |
1062 | |
1063 | static u_char *parse_irq(u_char *p, u_char *q, cistpl_irq_t *irq) | |
1064 | { | |
6e83ee07 | 1065 | if (p == q) |
3f9c5f4c | 1066 | return NULL; |
6e83ee07 DB |
1067 | irq->IRQInfo1 = *p; p++; |
1068 | if (irq->IRQInfo1 & IRQ_INFO2_VALID) { | |
1069 | if (p+2 > q) | |
1070 | return NULL; | |
1071 | irq->IRQInfo2 = (p[1]<<8) + p[0]; | |
1072 | p += 2; | |
1073 | } | |
1074 | return p; | |
1da177e4 LT |
1075 | } |
1076 | ||
1da177e4 LT |
1077 | |
1078 | static int parse_cftable_entry(tuple_t *tuple, | |
1079 | cistpl_cftable_entry_t *entry) | |
1080 | { | |
6e83ee07 DB |
1081 | u_char *p, *q, features; |
1082 | ||
1083 | p = tuple->TupleData; | |
1084 | q = p + tuple->TupleDataLen; | |
1085 | entry->index = *p & 0x3f; | |
1086 | entry->flags = 0; | |
1da177e4 | 1087 | if (*p & 0x40) |
6e83ee07 DB |
1088 | entry->flags |= CISTPL_CFTABLE_DEFAULT; |
1089 | if (*p & 0x80) { | |
1090 | if (++p == q) | |
1091 | return -EINVAL; | |
1092 | if (*p & 0x10) | |
1093 | entry->flags |= CISTPL_CFTABLE_BVDS; | |
1094 | if (*p & 0x20) | |
1095 | entry->flags |= CISTPL_CFTABLE_WP; | |
1096 | if (*p & 0x40) | |
1097 | entry->flags |= CISTPL_CFTABLE_RDYBSY; | |
1098 | if (*p & 0x80) | |
1099 | entry->flags |= CISTPL_CFTABLE_MWAIT; | |
1100 | entry->interface = *p & 0x0f; | |
1101 | } else | |
1102 | entry->interface = 0; | |
1da177e4 | 1103 | |
6e83ee07 DB |
1104 | /* Process optional features */ |
1105 | if (++p == q) | |
3f9c5f4c | 1106 | return -EINVAL; |
6e83ee07 | 1107 | features = *p; p++; |
9fea84f4 | 1108 | |
6e83ee07 DB |
1109 | /* Power options */ |
1110 | if ((features & 3) > 0) { | |
1111 | p = parse_power(p, q, &entry->vcc); | |
1112 | if (p == NULL) | |
1113 | return -EINVAL; | |
1114 | } else | |
1115 | entry->vcc.present = 0; | |
1116 | if ((features & 3) > 1) { | |
1117 | p = parse_power(p, q, &entry->vpp1); | |
1118 | if (p == NULL) | |
1119 | return -EINVAL; | |
1120 | } else | |
1121 | entry->vpp1.present = 0; | |
1122 | if ((features & 3) > 2) { | |
1123 | p = parse_power(p, q, &entry->vpp2); | |
1124 | if (p == NULL) | |
1125 | return -EINVAL; | |
1126 | } else | |
1127 | entry->vpp2.present = 0; | |
1da177e4 | 1128 | |
6e83ee07 DB |
1129 | /* Timing options */ |
1130 | if (features & 0x04) { | |
1131 | p = parse_timing(p, q, &entry->timing); | |
1132 | if (p == NULL) | |
1133 | return -EINVAL; | |
1134 | } else { | |
1135 | entry->timing.wait = 0; | |
1136 | entry->timing.ready = 0; | |
1137 | entry->timing.reserved = 0; | |
1138 | } | |
1da177e4 | 1139 | |
6e83ee07 DB |
1140 | /* I/O window options */ |
1141 | if (features & 0x08) { | |
1142 | p = parse_io(p, q, &entry->io); | |
1143 | if (p == NULL) | |
1144 | return -EINVAL; | |
1145 | } else | |
1146 | entry->io.nwin = 0; | |
1147 | ||
1148 | /* Interrupt options */ | |
1149 | if (features & 0x10) { | |
1150 | p = parse_irq(p, q, &entry->irq); | |
1151 | if (p == NULL) | |
1152 | return -EINVAL; | |
1153 | } else | |
1154 | entry->irq.IRQInfo1 = 0; | |
9fea84f4 | 1155 | |
6e83ee07 DB |
1156 | switch (features & 0x60) { |
1157 | case 0x00: | |
1158 | entry->mem.nwin = 0; | |
1159 | break; | |
1160 | case 0x20: | |
1161 | entry->mem.nwin = 1; | |
1162 | entry->mem.win[0].len = get_unaligned_le16(p) << 8; | |
1163 | entry->mem.win[0].card_addr = 0; | |
1164 | entry->mem.win[0].host_addr = 0; | |
1165 | p += 2; | |
1166 | if (p > q) | |
1167 | return -EINVAL; | |
1168 | break; | |
1169 | case 0x40: | |
1170 | entry->mem.nwin = 1; | |
1171 | entry->mem.win[0].len = get_unaligned_le16(p) << 8; | |
1172 | entry->mem.win[0].card_addr = get_unaligned_le16(p + 2) << 8; | |
1173 | entry->mem.win[0].host_addr = 0; | |
1174 | p += 4; | |
1175 | if (p > q) | |
1176 | return -EINVAL; | |
1177 | break; | |
1178 | case 0x60: | |
1179 | p = parse_mem(p, q, &entry->mem); | |
1180 | if (p == NULL) | |
1181 | return -EINVAL; | |
1182 | break; | |
1183 | } | |
1184 | ||
1185 | /* Misc features */ | |
1186 | if (features & 0x80) { | |
1187 | if (p == q) | |
1188 | return -EINVAL; | |
1189 | entry->flags |= (*p << 8); | |
1190 | while (*p & 0x80) | |
1191 | if (++p == q) | |
1192 | return -EINVAL; | |
1193 | p++; | |
1194 | } | |
1195 | ||
1196 | entry->subtuples = q-p; | |
1197 | ||
1198 | return 0; | |
1da177e4 LT |
1199 | } |
1200 | ||
1da177e4 | 1201 | |
1da177e4 LT |
1202 | static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo) |
1203 | { | |
6e83ee07 DB |
1204 | u_char *p, *q; |
1205 | int n; | |
1da177e4 | 1206 | |
6e83ee07 DB |
1207 | p = (u_char *)tuple->TupleData; |
1208 | q = p + tuple->TupleDataLen; | |
1da177e4 | 1209 | |
6e83ee07 DB |
1210 | for (n = 0; n < CISTPL_MAX_DEVICES; n++) { |
1211 | if (p > q-6) | |
1212 | break; | |
1213 | geo->geo[n].buswidth = p[0]; | |
1214 | geo->geo[n].erase_block = 1 << (p[1]-1); | |
1215 | geo->geo[n].read_block = 1 << (p[2]-1); | |
1216 | geo->geo[n].write_block = 1 << (p[3]-1); | |
1217 | geo->geo[n].partition = 1 << (p[4]-1); | |
1218 | geo->geo[n].interleave = 1 << (p[5]-1); | |
1219 | p += 6; | |
1220 | } | |
1221 | geo->ngeo = n; | |
1222 | return 0; | |
1da177e4 LT |
1223 | } |
1224 | ||
1da177e4 LT |
1225 | |
1226 | static int parse_vers_2(tuple_t *tuple, cistpl_vers_2_t *v2) | |
1227 | { | |
6e83ee07 DB |
1228 | u_char *p, *q; |
1229 | ||
1230 | if (tuple->TupleDataLen < 10) | |
1231 | return -EINVAL; | |
1232 | ||
1233 | p = tuple->TupleData; | |
1234 | q = p + tuple->TupleDataLen; | |
1235 | ||
1236 | v2->vers = p[0]; | |
1237 | v2->comply = p[1]; | |
1238 | v2->dindex = get_unaligned_le16(p + 2); | |
1239 | v2->vspec8 = p[6]; | |
1240 | v2->vspec9 = p[7]; | |
1241 | v2->nhdr = p[8]; | |
1242 | p += 9; | |
1243 | return parse_strings(p, q, 2, v2->str, &v2->vendor, NULL); | |
1da177e4 LT |
1244 | } |
1245 | ||
1da177e4 LT |
1246 | |
1247 | static int parse_org(tuple_t *tuple, cistpl_org_t *org) | |
1248 | { | |
6e83ee07 DB |
1249 | u_char *p, *q; |
1250 | int i; | |
1251 | ||
1252 | p = tuple->TupleData; | |
1253 | q = p + tuple->TupleDataLen; | |
1254 | if (p == q) | |
1255 | return -EINVAL; | |
1256 | org->data_org = *p; | |
3f9c5f4c DB |
1257 | if (++p == q) |
1258 | return -EINVAL; | |
6e83ee07 DB |
1259 | for (i = 0; i < 30; i++) { |
1260 | org->desc[i] = *p; | |
1261 | if (*p == '\0') | |
1262 | break; | |
1263 | if (++p == q) | |
1264 | return -EINVAL; | |
1265 | } | |
1266 | return 0; | |
1da177e4 LT |
1267 | } |
1268 | ||
1da177e4 LT |
1269 | |
1270 | static int parse_format(tuple_t *tuple, cistpl_format_t *fmt) | |
1271 | { | |
6e83ee07 | 1272 | u_char *p; |
1da177e4 | 1273 | |
6e83ee07 DB |
1274 | if (tuple->TupleDataLen < 10) |
1275 | return -EINVAL; | |
1da177e4 | 1276 | |
6e83ee07 | 1277 | p = tuple->TupleData; |
1da177e4 | 1278 | |
6e83ee07 DB |
1279 | fmt->type = p[0]; |
1280 | fmt->edc = p[1]; | |
1281 | fmt->offset = get_unaligned_le32(p + 2); | |
1282 | fmt->length = get_unaligned_le32(p + 6); | |
1da177e4 | 1283 | |
6e83ee07 | 1284 | return 0; |
1da177e4 LT |
1285 | } |
1286 | ||
1da177e4 | 1287 | |
2f3061eb | 1288 | int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse) |
1da177e4 | 1289 | { |
6e83ee07 DB |
1290 | int ret = 0; |
1291 | ||
1292 | if (tuple->TupleDataLen > tuple->TupleDataMax) | |
1293 | return -EINVAL; | |
1294 | switch (tuple->TupleCode) { | |
1295 | case CISTPL_DEVICE: | |
1296 | case CISTPL_DEVICE_A: | |
1297 | ret = parse_device(tuple, &parse->device); | |
1298 | break; | |
1299 | case CISTPL_CHECKSUM: | |
1300 | ret = parse_checksum(tuple, &parse->checksum); | |
1301 | break; | |
1302 | case CISTPL_LONGLINK_A: | |
1303 | case CISTPL_LONGLINK_C: | |
1304 | ret = parse_longlink(tuple, &parse->longlink); | |
1305 | break; | |
1306 | case CISTPL_LONGLINK_MFC: | |
1307 | ret = parse_longlink_mfc(tuple, &parse->longlink_mfc); | |
1308 | break; | |
1309 | case CISTPL_VERS_1: | |
1310 | ret = parse_vers_1(tuple, &parse->version_1); | |
1311 | break; | |
1312 | case CISTPL_ALTSTR: | |
1313 | ret = parse_altstr(tuple, &parse->altstr); | |
1314 | break; | |
1315 | case CISTPL_JEDEC_A: | |
1316 | case CISTPL_JEDEC_C: | |
1317 | ret = parse_jedec(tuple, &parse->jedec); | |
1318 | break; | |
1319 | case CISTPL_MANFID: | |
1320 | ret = parse_manfid(tuple, &parse->manfid); | |
1321 | break; | |
1322 | case CISTPL_FUNCID: | |
1323 | ret = parse_funcid(tuple, &parse->funcid); | |
1324 | break; | |
1325 | case CISTPL_FUNCE: | |
1326 | ret = parse_funce(tuple, &parse->funce); | |
1327 | break; | |
1328 | case CISTPL_CONFIG: | |
1329 | ret = parse_config(tuple, &parse->config); | |
1330 | break; | |
1331 | case CISTPL_CFTABLE_ENTRY: | |
1332 | ret = parse_cftable_entry(tuple, &parse->cftable_entry); | |
1333 | break; | |
1334 | case CISTPL_DEVICE_GEO: | |
1335 | case CISTPL_DEVICE_GEO_A: | |
1336 | ret = parse_device_geo(tuple, &parse->device_geo); | |
1337 | break; | |
1338 | case CISTPL_VERS_2: | |
1339 | ret = parse_vers_2(tuple, &parse->vers_2); | |
1340 | break; | |
1341 | case CISTPL_ORG: | |
1342 | ret = parse_org(tuple, &parse->org); | |
1343 | break; | |
1344 | case CISTPL_FORMAT: | |
1345 | case CISTPL_FORMAT_A: | |
1346 | ret = parse_format(tuple, &parse->format); | |
1347 | break; | |
1348 | case CISTPL_NO_LINK: | |
1349 | case CISTPL_LINKTARGET: | |
1350 | ret = 0; | |
1351 | break; | |
1352 | default: | |
1353 | ret = -EINVAL; | |
1354 | break; | |
1355 | } | |
1356 | if (ret) | |
1357 | pr_debug("parse_tuple failed %d\n", ret); | |
1358 | return ret; | |
1da177e4 | 1359 | } |
2f3061eb | 1360 | EXPORT_SYMBOL(pcmcia_parse_tuple); |
1da177e4 | 1361 | |
9fea84f4 | 1362 | |
f131ddc4 DB |
1363 | /** |
1364 | * pccard_validate_cis() - check whether card has a sensible CIS | |
1365 | * @s: the struct pcmcia_socket we are to check | |
1366 | * @info: returns the number of tuples in the (valid) CIS, or 0 | |
1367 | * | |
1368 | * This tries to determine if a card has a sensible CIS. In @info, it | |
1369 | * returns the number of tuples in the CIS, or 0 if the CIS looks bad. The | |
1370 | * checks include making sure several critical tuples are present and | |
1371 | * valid; seeing if the total number of tuples is reasonable; and | |
1372 | * looking for tuples that use reserved codes. | |
1373 | * | |
1374 | * The function returns 0 on success. | |
1375 | */ | |
84897fc0 | 1376 | int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info) |
1da177e4 | 1377 | { |
f131ddc4 DB |
1378 | tuple_t *tuple; |
1379 | cisparse_t *p; | |
1380 | unsigned int count = 0; | |
1381 | int ret, reserved, dev_ok = 0, ident_ok = 0; | |
1da177e4 | 1382 | |
f131ddc4 DB |
1383 | if (!s) |
1384 | return -EINVAL; | |
1da177e4 | 1385 | |
a8408c17 DB |
1386 | if (s->functions) { |
1387 | WARN_ON(1); | |
1388 | return -EINVAL; | |
1389 | } | |
1390 | ||
f131ddc4 | 1391 | /* We do not want to validate the CIS cache... */ |
8680c4b3 | 1392 | mutex_lock(&s->ops_mutex); |
f131ddc4 | 1393 | destroy_cis_cache(s); |
8680c4b3 | 1394 | mutex_unlock(&s->ops_mutex); |
904e3777 | 1395 | |
f131ddc4 DB |
1396 | tuple = kmalloc(sizeof(*tuple), GFP_KERNEL); |
1397 | if (tuple == NULL) { | |
1398 | dev_warn(&s->dev, "no memory to validate CIS\n"); | |
1399 | return -ENOMEM; | |
1400 | } | |
1401 | p = kmalloc(sizeof(*p), GFP_KERNEL); | |
1402 | if (p == NULL) { | |
1403 | kfree(tuple); | |
1404 | dev_warn(&s->dev, "no memory to validate CIS\n"); | |
1405 | return -ENOMEM; | |
1406 | } | |
1da177e4 | 1407 | |
f131ddc4 DB |
1408 | count = reserved = 0; |
1409 | tuple->DesiredTuple = RETURN_FIRST_TUPLE; | |
1410 | tuple->Attributes = TUPLE_RETURN_COMMON; | |
1411 | ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple); | |
4c89e88b | 1412 | if (ret != 0) |
f131ddc4 DB |
1413 | goto done; |
1414 | ||
1415 | /* First tuple should be DEVICE; we should really have either that | |
1416 | or a CFTABLE_ENTRY of some sort */ | |
1417 | if ((tuple->TupleCode == CISTPL_DEVICE) || | |
1418 | (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p)) || | |
1419 | (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p))) | |
1420 | dev_ok++; | |
1421 | ||
1422 | /* All cards should have a MANFID tuple, and/or a VERS_1 or VERS_2 | |
1423 | tuple, for card identification. Certain old D-Link and Linksys | |
1424 | cards have only a broken VERS_2 tuple; hence the bogus test. */ | |
1425 | if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) || | |
1426 | (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) || | |
1427 | (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC)) | |
1428 | ident_ok++; | |
1429 | ||
1430 | if (!dev_ok && !ident_ok) | |
1431 | goto done; | |
1432 | ||
1433 | for (count = 1; count < MAX_TUPLES; count++) { | |
1434 | ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple); | |
1435 | if (ret != 0) | |
1436 | break; | |
1437 | if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) || | |
1438 | ((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) || | |
1439 | ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff))) | |
1440 | reserved++; | |
1441 | } | |
1442 | if ((count == MAX_TUPLES) || (reserved > 5) || | |
1443 | ((!dev_ok || !ident_ok) && (count > 10))) | |
1444 | count = 0; | |
1445 | ||
1446 | ret = 0; | |
1da177e4 LT |
1447 | |
1448 | done: | |
f131ddc4 DB |
1449 | /* invalidate CIS cache on failure */ |
1450 | if (!dev_ok || !ident_ok || !count) { | |
8680c4b3 | 1451 | mutex_lock(&s->ops_mutex); |
f131ddc4 | 1452 | destroy_cis_cache(s); |
8680c4b3 | 1453 | mutex_unlock(&s->ops_mutex); |
f131ddc4 DB |
1454 | ret = -EIO; |
1455 | } | |
1456 | ||
1457 | if (info) | |
1458 | *info = count; | |
1459 | kfree(tuple); | |
1460 | kfree(p); | |
1461 | return ret; | |
1da177e4 | 1462 | } |
6e7b51a7 DB |
1463 | |
1464 | ||
1465 | #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) | |
1466 | ||
1467 | static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, | |
1468 | loff_t off, size_t count) | |
1469 | { | |
1470 | tuple_t tuple; | |
1471 | int status, i; | |
1472 | loff_t pointer = 0; | |
1473 | ssize_t ret = 0; | |
1474 | u_char *tuplebuffer; | |
1475 | u_char *tempbuffer; | |
1476 | ||
1477 | tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL); | |
1478 | if (!tuplebuffer) | |
1479 | return -ENOMEM; | |
1480 | ||
1481 | tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL); | |
1482 | if (!tempbuffer) { | |
1483 | ret = -ENOMEM; | |
1484 | goto free_tuple; | |
1485 | } | |
1486 | ||
1487 | memset(&tuple, 0, sizeof(tuple_t)); | |
1488 | ||
1489 | tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON; | |
1490 | tuple.DesiredTuple = RETURN_FIRST_TUPLE; | |
1491 | tuple.TupleOffset = 0; | |
1492 | ||
1493 | status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple); | |
1494 | while (!status) { | |
1495 | tuple.TupleData = tuplebuffer; | |
1496 | tuple.TupleDataMax = 255; | |
1497 | memset(tuplebuffer, 0, sizeof(u_char) * 255); | |
1498 | ||
1499 | status = pccard_get_tuple_data(s, &tuple); | |
1500 | if (status) | |
1501 | break; | |
1502 | ||
1503 | if (off < (pointer + 2 + tuple.TupleDataLen)) { | |
1504 | tempbuffer[0] = tuple.TupleCode & 0xff; | |
1505 | tempbuffer[1] = tuple.TupleLink & 0xff; | |
1506 | for (i = 0; i < tuple.TupleDataLen; i++) | |
1507 | tempbuffer[i + 2] = tuplebuffer[i] & 0xff; | |
1508 | ||
1509 | for (i = 0; i < (2 + tuple.TupleDataLen); i++) { | |
1510 | if (((i + pointer) >= off) && | |
1511 | (i + pointer) < (off + count)) { | |
1512 | buf[ret] = tempbuffer[i]; | |
1513 | ret++; | |
1514 | } | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | pointer += 2 + tuple.TupleDataLen; | |
1519 | ||
1520 | if (pointer >= (off + count)) | |
1521 | break; | |
1522 | ||
1523 | if (tuple.TupleCode == CISTPL_END) | |
1524 | break; | |
1525 | status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple); | |
1526 | } | |
1527 | ||
1528 | kfree(tempbuffer); | |
1529 | free_tuple: | |
1530 | kfree(tuplebuffer); | |
1531 | ||
1532 | return ret; | |
1533 | } | |
1534 | ||
1535 | ||
2c3c8bea | 1536 | static ssize_t pccard_show_cis(struct file *filp, struct kobject *kobj, |
6e7b51a7 DB |
1537 | struct bin_attribute *bin_attr, |
1538 | char *buf, loff_t off, size_t count) | |
1539 | { | |
1540 | unsigned int size = 0x200; | |
1541 | ||
1542 | if (off >= size) | |
1543 | count = 0; | |
1544 | else { | |
1545 | struct pcmcia_socket *s; | |
a8408c17 | 1546 | unsigned int chains = 1; |
6e7b51a7 DB |
1547 | |
1548 | if (off + count > size) | |
1549 | count = size - off; | |
1550 | ||
1551 | s = to_socket(container_of(kobj, struct device, kobj)); | |
1552 | ||
1553 | if (!(s->state & SOCKET_PRESENT)) | |
1554 | return -ENODEV; | |
a8408c17 | 1555 | if (!s->functions && pccard_validate_cis(s, &chains)) |
6e7b51a7 DB |
1556 | return -EIO; |
1557 | if (!chains) | |
1558 | return -ENODATA; | |
1559 | ||
1560 | count = pccard_extract_cis(s, buf, off, count); | |
1561 | } | |
1562 | ||
1563 | return count; | |
1564 | } | |
1565 | ||
1566 | ||
2c3c8bea | 1567 | static ssize_t pccard_store_cis(struct file *filp, struct kobject *kobj, |
6e7b51a7 DB |
1568 | struct bin_attribute *bin_attr, |
1569 | char *buf, loff_t off, size_t count) | |
1570 | { | |
1571 | struct pcmcia_socket *s; | |
1572 | int error; | |
1573 | ||
1574 | s = to_socket(container_of(kobj, struct device, kobj)); | |
1575 | ||
1576 | if (off) | |
1577 | return -EINVAL; | |
1578 | ||
1579 | if (count >= CISTPL_MAX_CIS_SIZE) | |
1580 | return -EINVAL; | |
1581 | ||
1582 | if (!(s->state & SOCKET_PRESENT)) | |
1583 | return -ENODEV; | |
1584 | ||
1585 | error = pcmcia_replace_cis(s, buf, count); | |
1586 | if (error) | |
1587 | return -EIO; | |
1588 | ||
af461fc1 | 1589 | pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
6e7b51a7 DB |
1590 | |
1591 | return count; | |
1592 | } | |
1593 | ||
1594 | ||
1595 | struct bin_attribute pccard_cis_attr = { | |
1596 | .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR }, | |
1597 | .size = 0x200, | |
1598 | .read = pccard_show_cis, | |
1599 | .write = pccard_store_cis, | |
1600 | }; |