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Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
[deliverable/linux.git] / scripts / mod / file2alias.c
CommitLineData
1da177e4
LT		 1/* Simple code to turn various tables in an ELF file into alias definitions.
2 * This deals with kernel datastructures where they should be
3 * dealt with: in the kernel source.
4 *
5 * Copyright 2002-2003 Rusty Russell, IBM Corporation
6 * 2003 Kai Germaschewski
7 *
8 *
9 * This software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
11 */
12
13#include "modpost.h"
14
15/* We use the ELF typedefs for kernel_ulong_t but bite the bullet and
16 * use either stdint.h or inttypes.h for the rest. */
17#if KERNEL_ELFCLASS == ELFCLASS32
18typedef Elf32_Addr kernel_ulong_t;
1d8f430c 19#define BITS_PER_LONG 32
1da177e4
LT		 20#else
21typedef Elf64_Addr kernel_ulong_t;
1d8f430c 22#define BITS_PER_LONG 64
1da177e4
LT		 23#endif
24#ifdef __sun__
25#include <inttypes.h>
26#else
27#include <stdint.h>
28#endif
29
5e655772
JM		 30#include <ctype.h>
31
1da177e4
LT		 32typedef uint32_t __u32;
33typedef uint16_t __u16;
34typedef unsigned char __u8;
35
36/* Big exception to the "don't include kernel headers into userspace, which
62070fa4 37 * even potentially has different endianness and word sizes, since
1da177e4
LT		 38 * we handle those differences explicitly below */
39#include "../../include/linux/mod_devicetable.h"
40
41#define ADD(str, sep, cond, field) \
42do { \
43 strcat(str, sep); \
44 if (cond) \
45 sprintf(str + strlen(str), \
46 sizeof(field) == 1 ? "%02X" : \
47 sizeof(field) == 2 ? "%04X" : \
48 sizeof(field) == 4 ? "%08X" : "", \
49 field); \
50 else \
51 sprintf(str + strlen(str), "*"); \
52} while(0)
53
ac551828
JD		 54/* Always end in a wildcard, for future extension */
55static inline void add_wildcard(char *str)
56{
57 int len = strlen(str);
58
59 if (str[len - 1] != '*')
60 strcat(str + len, "*");
61}
62
4ce6efed 63unsigned int cross_build = 0;
fb33d816
SR		 64/**
65 * Check that sizeof(device_id type) are consistent with size of section
66 * in .o file. If in-consistent then userspace and kernel does not agree
67 * on actual size which is a bug.
e0049825 68 * Also verify that the final entry in the table is all zeros.
4ce6efed 69 * Ignore both checks if build host differ from target host and size differs.
fb33d816 70 **/
e0049825
KC		 71static void device_id_check(const char *modname, const char *device_id,
72 unsigned long size, unsigned long id_size,
73 void *symval)
fb33d816 74{
e0049825
KC		 75 int i;
76
fb33d816 77 if (size % id_size || size < id_size) {
4ce6efed
SR		 78 if (cross_build != 0)
79 return;
fb33d816
SR		 80 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
81 "of the size of section __mod_%s_device_table=%lu.\n"
82 "Fix definition of struct %s_device_id "
83 "in mod_devicetable.h\n",
84 modname, device_id, id_size, device_id, size, device_id);
85 }
e0049825
KC		 86 /* Verify last one is a terminator */
87 for (i = 0; i < id_size; i++ ) {
88 if (*(uint8_t*)(symval+size-id_size+i)) {
89 fprintf(stderr,"%s: struct %s_device_id is %lu bytes. "
90 "The last of %lu is:\n",
91 modname, device_id, id_size, size / id_size);
92 for (i = 0; i < id_size; i++ )
93 fprintf(stderr,"0x%02x ",
94 *(uint8_t*)(symval+size-id_size+i) );
95 fprintf(stderr,"\n");
96 fatal("%s: struct %s_device_id is not terminated "
97 "with a NULL entry!\n", modname, device_id);
98 }
99 }
fb33d816
SR		 100}
101
b19dcd93
RK		 102/* USB is special because the bcdDevice can be matched against a numeric range */
103/* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */
104static void do_usb_entry(struct usb_device_id *id,
105 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
106 unsigned char range_lo, unsigned char range_hi,
107 struct module *mod)
1da177e4 108{
b19dcd93 109 char alias[500];
1da177e4
LT		 110 strcpy(alias, "usb:");
111 ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR,
112 id->idVendor);
113 ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
114 id->idProduct);
b19dcd93
RK		 115
116 strcat(alias, "d");
117 if (bcdDevice_initial_digits)
118 sprintf(alias + strlen(alias), "%0*X",
119 bcdDevice_initial_digits, bcdDevice_initial);
120 if (range_lo == range_hi)
121 sprintf(alias + strlen(alias), "%u", range_lo);
122 else if (range_lo > 0 || range_hi < 9)
123 sprintf(alias + strlen(alias), "[%u-%u]", range_lo, range_hi);
124 if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1))
125 strcat(alias, "*");
126
1da177e4
LT		 127 ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
128 id->bDeviceClass);
129 ADD(alias, "dsc",
130 id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
131 id->bDeviceSubClass);
132 ADD(alias, "dp",
133 id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
134 id->bDeviceProtocol);
135 ADD(alias, "ic",
136 id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
137 id->bInterfaceClass);
138 ADD(alias, "isc",
139 id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
140 id->bInterfaceSubClass);
141 ADD(alias, "ip",
142 id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
143 id->bInterfaceProtocol);
b19dcd93 144
ac551828 145 add_wildcard(alias);
b19dcd93
RK		 146 buf_printf(&mod->dev_table_buf,
147 "MODULE_ALIAS(\"%s\");\n", alias);
148}
149
150static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod)
151{
152 unsigned int devlo, devhi;
153 unsigned char chi, clo;
154 int ndigits;
155
156 id->match_flags = TO_NATIVE(id->match_flags);
157 id->idVendor = TO_NATIVE(id->idVendor);
158 id->idProduct = TO_NATIVE(id->idProduct);
159
160 devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
161 TO_NATIVE(id->bcdDevice_lo) : 0x0U;
162 devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
163 TO_NATIVE(id->bcdDevice_hi) : ~0x0U;
164
165 /*
166 * Some modules (visor) have empty slots as placeholder for
167 * run-time specification that results in catch-all alias
168 */
de6f92b9 169 if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass))
b19dcd93
RK		 170 return;
171
172 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
173 for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
174 clo = devlo & 0xf;
175 chi = devhi & 0xf;
176 if (chi > 9) /* it's bcd not hex */
177 chi = 9;
178 devlo >>= 4;
179 devhi >>= 4;
180
181 if (devlo == devhi || !ndigits) {
182 do_usb_entry(id, devlo, ndigits, clo, chi, mod);
183 break;
184 }
185
186 if (clo > 0)
187 do_usb_entry(id, devlo++, ndigits, clo, 9, mod);
188
189 if (chi < 9)
190 do_usb_entry(id, devhi--, ndigits, 0, chi, mod);
191 }
192}
193
194static void do_usb_table(void *symval, unsigned long size,
195 struct module *mod)
196{
197 unsigned int i;
198 const unsigned long id_size = sizeof(struct usb_device_id);
199
e0049825 200 device_id_check(mod->name, "usb", size, id_size, symval);
fb33d816 201
b19dcd93
RK		 202 /* Leave last one: it's the terminator. */
203 size -= id_size;
204
205 for (i = 0; i < size; i += id_size)
206 do_usb_entry_multi(symval + i, mod);
1da177e4
LT		 207}
208
209/* Looks like: ieee1394:venNmoNspNverN */
210static int do_ieee1394_entry(const char *filename,
211 struct ieee1394_device_id *id, char *alias)
212{
213 id->match_flags = TO_NATIVE(id->match_flags);
214 id->vendor_id = TO_NATIVE(id->vendor_id);
215 id->model_id = TO_NATIVE(id->model_id);
216 id->specifier_id = TO_NATIVE(id->specifier_id);
217 id->version = TO_NATIVE(id->version);
218
219 strcpy(alias, "ieee1394:");
220 ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID,
221 id->vendor_id);
222 ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID,
223 id->model_id);
224 ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID,
225 id->specifier_id);
226 ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION,
227 id->version);
228
ac551828 229 add_wildcard(alias);
1da177e4
LT		 230 return 1;
231}
232
233/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
234static int do_pci_entry(const char *filename,
235 struct pci_device_id *id, char *alias)
236{
237 /* Class field can be divided into these three. */
238 unsigned char baseclass, subclass, interface,
239 baseclass_mask, subclass_mask, interface_mask;
240
241 id->vendor = TO_NATIVE(id->vendor);
242 id->device = TO_NATIVE(id->device);
243 id->subvendor = TO_NATIVE(id->subvendor);
244 id->subdevice = TO_NATIVE(id->subdevice);
245 id->class = TO_NATIVE(id->class);
246 id->class_mask = TO_NATIVE(id->class_mask);
247
248 strcpy(alias, "pci:");
249 ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor);
250 ADD(alias, "d", id->device != PCI_ANY_ID, id->device);
251 ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor);
252 ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice);
253
254 baseclass = (id->class) >> 16;
255 baseclass_mask = (id->class_mask) >> 16;
256 subclass = (id->class) >> 8;
257 subclass_mask = (id->class_mask) >> 8;
258 interface = id->class;
259 interface_mask = id->class_mask;
260
261 if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
262 || (subclass_mask != 0 && subclass_mask != 0xFF)
263 || (interface_mask != 0 && interface_mask != 0xFF)) {
cb80514d
SR		 264 warn("Can't handle masks in %s:%04X\n",
265 filename, id->class_mask);
1da177e4
LT		 266 return 0;
267 }
268
269 ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
270 ADD(alias, "sc", subclass_mask == 0xFF, subclass);
271 ADD(alias, "i", interface_mask == 0xFF, interface);
ac551828 272 add_wildcard(alias);
1da177e4
LT		 273 return 1;
274}
275
62070fa4 276/* looks like: "ccw:tNmNdtNdmN" */
1da177e4
LT		 277static int do_ccw_entry(const char *filename,
278 struct ccw_device_id *id, char *alias)
279{
280 id->match_flags = TO_NATIVE(id->match_flags);
281 id->cu_type = TO_NATIVE(id->cu_type);
282 id->cu_model = TO_NATIVE(id->cu_model);
283 id->dev_type = TO_NATIVE(id->dev_type);
284 id->dev_model = TO_NATIVE(id->dev_model);
285
286 strcpy(alias, "ccw:");
287 ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
288 id->cu_type);
289 ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
290 id->cu_model);
291 ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
292 id->dev_type);
de1d9c03 293 ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
1da177e4 294 id->dev_model);
ac551828 295 add_wildcard(alias);
1da177e4
LT		 296 return 1;
297}
298
1534c382
MS		 299/* looks like: "ap:tN" */
300static int do_ap_entry(const char *filename,
301 struct ap_device_id *id, char *alias)
302{
ac551828 303 sprintf(alias, "ap:t%02X*", id->dev_type);
1534c382
MS		 304 return 1;
305}
306
7e9db9ea
CH		 307/* looks like: "css:tN" */
308static int do_css_entry(const char *filename,
309 struct css_device_id *id, char *alias)
310{
311 sprintf(alias, "css:t%01X", id->type);
312 return 1;
313}
314
1da177e4
LT		 315/* Looks like: "serio:tyNprNidNexN" */
316static int do_serio_entry(const char *filename,
317 struct serio_device_id *id, char *alias)
318{
319 id->type = TO_NATIVE(id->type);
320 id->proto = TO_NATIVE(id->proto);
321 id->id = TO_NATIVE(id->id);
322 id->extra = TO_NATIVE(id->extra);
323
324 strcpy(alias, "serio:");
325 ADD(alias, "ty", id->type != SERIO_ANY, id->type);
326 ADD(alias, "pr", id->proto != SERIO_ANY, id->proto);
327 ADD(alias, "id", id->id != SERIO_ANY, id->id);
328 ADD(alias, "ex", id->extra != SERIO_ANY, id->extra);
329
ac551828 330 add_wildcard(alias);
1da177e4
LT		 331 return 1;
332}
333
29b71a1c
TR		 334/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
335static int do_acpi_entry(const char *filename,
336 struct acpi_device_id *id, char *alias)
337{
ac551828 338 sprintf(alias, "acpi*:%s:*", id->id);
29b71a1c
TR		 339 return 1;
340}
341
1da177e4 342/* looks like: "pnp:dD" */
22454cb9
KS		 343static void do_pnp_device_entry(void *symval, unsigned long size,
344 struct module *mod)
1da177e4 345{
22454cb9 346 const unsigned long id_size = sizeof(struct pnp_device_id);
5e4c6564
KS		 347 const unsigned int count = (size / id_size)-1;
348 const struct pnp_device_id *devs = symval;
349 unsigned int i;
22454cb9
KS		 350
351 device_id_check(mod->name, "pnp", size, id_size, symval);
352
5e4c6564
KS		 353 for (i = 0; i < count; i++) {
354 const char *id = (char *)devs[i].id;
355
356 buf_printf(&mod->dev_table_buf,
357 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
358 buf_printf(&mod->dev_table_buf,
359 "MODULE_ALIAS(\"acpi*:%s:*\");\n", id);
360 }
1da177e4
LT		 361}
362
0c81eed4
KS		 363/* looks like: "pnp:dD" for every device of the card */
364static void do_pnp_card_entries(void *symval, unsigned long size,
365 struct module *mod)
1da177e4 366{
0c81eed4
KS		 367 const unsigned long id_size = sizeof(struct pnp_card_device_id);
368 const unsigned int count = (size / id_size)-1;
369 const struct pnp_card_device_id *cards = symval;
370 unsigned int i;
1da177e4 371
0c81eed4
KS		 372 device_id_check(mod->name, "pnp", size, id_size, symval);
373
374 for (i = 0; i < count; i++) {
375 unsigned int j;
376 const struct pnp_card_device_id *card = &cards[i];
377
378 for (j = 0; j < PNP_MAX_DEVICES; j++) {
379 const char *id = (char *)card->devs[j].id;
380 int i2, j2;
381 int dup = 0;
382
383 if (!id[0])
384 break;
385
386 /* find duplicate, already added value */
387 for (i2 = 0; i2 < i && !dup; i2++) {
388 const struct pnp_card_device_id *card2 = &cards[i2];
389
390 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
391 const char *id2 = (char *)card2->devs[j2].id;
392
393 if (!id2[0])
394 break;
395
396 if (!strcmp(id, id2)) {
397 dup = 1;
398 break;
399 }
400 }
401 }
402
403 /* add an individual alias for every device entry */
22454cb9 404 if (!dup) {
0c81eed4
KS		 405 buf_printf(&mod->dev_table_buf,
406 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
22454cb9
KS		 407 buf_printf(&mod->dev_table_buf,
408 "MODULE_ALIAS(\"acpi*:%s:*\");\n", id);
409 }
0c81eed4 410 }
1da177e4 411 }
1da177e4
LT		 412}
413
90829cfe
DB		 414/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
415static int do_pcmcia_entry(const char *filename,
416 struct pcmcia_device_id *id, char *alias)
417{
418 unsigned int i;
419
4fb7edce 420 id->match_flags = TO_NATIVE(id->match_flags);
90829cfe
DB		 421 id->manf_id = TO_NATIVE(id->manf_id);
422 id->card_id = TO_NATIVE(id->card_id);
423 id->func_id = TO_NATIVE(id->func_id);
424 id->function = TO_NATIVE(id->function);
425 id->device_no = TO_NATIVE(id->device_no);
4fb7edce 426
90829cfe
DB		 427 for (i=0; i<4; i++) {
428 id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]);
429 }
430
431 strcpy(alias, "pcmcia:");
432 ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
433 id->manf_id);
434 ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
435 id->card_id);
436 ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
437 id->func_id);
438 ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
439 id->function);
440 ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
441 id->device_no);
442 ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]);
443 ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]);
444 ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]);
445 ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]);
446
ac551828 447 add_wildcard(alias);
90829cfe
DB		 448 return 1;
449}
450
451
452
5e655772
JM		 453static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
454{
d1ab4235 455 int len;
5e655772 456 char *tmp;
d1ab4235 457 len = sprintf (alias, "of:N%sT%s",
5e655772 458 of->name[0] ? of->name : "*",
d1ab4235
SM		 459 of->type[0] ? of->type : "*");
460
461 if (of->compatible[0])
462 sprintf (&alias[len], "%sC%s",
463 of->type[0] ? "*" : "",
464 of->compatible);
5e655772
JM		 465
466 /* Replace all whitespace with underscores */
467 for (tmp = alias; tmp && *tmp; tmp++)
468 if (isspace (*tmp))
469 *tmp = '_';
470
ac551828 471 add_wildcard(alias);
5e655772
JM		 472 return 1;
473}
474
fb120da6
SR		 475static int do_vio_entry(const char *filename, struct vio_device_id *vio,
476 char *alias)
477{
478 char *tmp;
479
480 sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*",
481 vio->compat[0] ? vio->compat : "*");
482
483 /* Replace all whitespace with underscores */
484 for (tmp = alias; tmp && *tmp; tmp++)
485 if (isspace (*tmp))
486 *tmp = '_';
487
ac551828 488 add_wildcard(alias);
fb120da6
SR		 489 return 1;
490}
491
1d8f430c
RR		 492#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
493
494static void do_input(char *alias,
495 kernel_ulong_t *arr, unsigned int min, unsigned int max)
496{
497 unsigned int i;
ddc5d341
DT		 498
499 for (i = min; i < max; i++)
e0e92632 500 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
ddc5d341 501 sprintf(alias + strlen(alias), "%X,*", i);
1d8f430c
RR		 502}
503
504/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
505static int do_input_entry(const char *filename, struct input_device_id *id,
506 char *alias)
507{
508 sprintf(alias, "input:");
509
ddc5d341
DT		 510 ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype);
511 ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor);
512 ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product);
513 ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version);
1d8f430c
RR		 514
515 sprintf(alias + strlen(alias), "-e*");
ddc5d341 516 if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT)
dc24f0e7 517 do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX);
1d8f430c 518 sprintf(alias + strlen(alias), "k*");
ddc5d341 519 if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
dc24f0e7
SR		 520 do_input(alias, id->keybit,
521 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
522 INPUT_DEVICE_ID_KEY_MAX);
1d8f430c 523 sprintf(alias + strlen(alias), "r*");
ddc5d341 524 if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT)
dc24f0e7 525 do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX);
1d8f430c 526 sprintf(alias + strlen(alias), "a*");
ddc5d341 527 if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
dc24f0e7 528 do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
1d8f430c 529 sprintf(alias + strlen(alias), "m*");
ddc5d341 530 if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT)
dc24f0e7 531 do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
1d8f430c 532 sprintf(alias + strlen(alias), "l*");
ddc5d341 533 if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
dc24f0e7 534 do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
1d8f430c 535 sprintf(alias + strlen(alias), "s*");
ddc5d341 536 if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
dc24f0e7 537 do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
1d8f430c 538 sprintf(alias + strlen(alias), "f*");
ddc5d341 539 if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT)
dc24f0e7 540 do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
1d8f430c 541 sprintf(alias + strlen(alias), "w*");
ddc5d341 542 if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT)
dc24f0e7 543 do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
1d8f430c
RR		 544 return 1;
545}
546
07563c71
MT		 547static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
548 char *alias)
549{
550 if (eisa->sig[0])
551 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);
ac551828
JD		 552 else
553 strcat(alias, "*");
07563c71
MT		 554 return 1;
555}
556
f3cf2673
KM		 557/* Looks like: parisc:tNhvNrevNsvN */
558static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
559 char *alias)
560{
561 id->hw_type = TO_NATIVE(id->hw_type);
562 id->hversion = TO_NATIVE(id->hversion);
563 id->hversion_rev = TO_NATIVE(id->hversion_rev);
564 id->sversion = TO_NATIVE(id->sversion);
565
566 strcpy(alias, "parisc:");
f354ef8a
KM		 567 ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type);
568 ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion);
569 ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev);
570 ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion);
f3cf2673 571
ac551828 572 add_wildcard(alias);
f3cf2673
KM		 573 return 1;
574}
575
d59b66c7
PO		 576/* Looks like: sdio:cNvNdN. */
577static int do_sdio_entry(const char *filename,
578 struct sdio_device_id *id, char *alias)
579{
580 id->class = TO_NATIVE(id->class);
581 id->vendor = TO_NATIVE(id->vendor);
582 id->device = TO_NATIVE(id->device);
583
584 strcpy(alias, "sdio:");
585 ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class);
586 ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor);
587 ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device);
ac551828 588 add_wildcard(alias);
038a5008
LT		 589 return 1;
590}
591
61e115a5
MB		 592/* Looks like: ssb:vNidNrevN. */
593static int do_ssb_entry(const char *filename,
594 struct ssb_device_id *id, char *alias)
595{
596 id->vendor = TO_NATIVE(id->vendor);
597 id->coreid = TO_NATIVE(id->coreid);
598 id->revision = TO_NATIVE(id->revision);
d59b66c7 599
61e115a5
MB		 600 strcpy(alias, "ssb:");
601 ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor);
602 ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid);
603 ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision);
ac551828 604 add_wildcard(alias);
d59b66c7
PO		 605 return 1;
606}
607
b01d9f28
RR		 608/* Looks like: virtio:dNvN */
609static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
610 char *alias)
611{
612 id->device = TO_NATIVE(id->device);
613 id->vendor = TO_NATIVE(id->vendor);
614
615 strcpy(alias, "virtio:");
616 ADD(alias, "d", 1, id->device);
617 ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor);
618
ac551828 619 add_wildcard(alias);
b01d9f28
RR		 620 return 1;
621}
622
d2653e92
JD		 623/* Looks like: i2c:S */
624static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
625 char *alias)
626{
627 sprintf(alias, I2C_MODULE_PREFIX "%s", id->name);
628
629 return 1;
630}
631
d945b697
DW		 632static const struct dmifield {
633 const char *prefix;
634 int field;
635} dmi_fields[] = {
636 { "bvn", DMI_BIOS_VENDOR },
637 { "bvr", DMI_BIOS_VERSION },
638 { "bd", DMI_BIOS_DATE },
639 { "svn", DMI_SYS_VENDOR },
640 { "pn", DMI_PRODUCT_NAME },
641 { "pvr", DMI_PRODUCT_VERSION },
642 { "rvn", DMI_BOARD_VENDOR },
643 { "rn", DMI_BOARD_NAME },
644 { "rvr", DMI_BOARD_VERSION },
645 { "cvn", DMI_CHASSIS_VENDOR },
646 { "ct", DMI_CHASSIS_TYPE },
647 { "cvr", DMI_CHASSIS_VERSION },
648 { NULL, DMI_NONE }
649};
650
651static void dmi_ascii_filter(char *d, const char *s)
652{
653 /* Filter out characters we don't want to see in the modalias string */
654 for (; *s; s++)
655 if (*s > ' ' && *s < 127 && *s != ':')
656 *(d++) = *s;
657
658 *d = 0;
659}
660
661
662static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
663 char *alias)
664{
665 int i, j;
666
667 sprintf(alias, "dmi*");
668
669 for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
670 for (j = 0; j < 4; j++) {
671 if (id->matches[j].slot &&
672 id->matches[j].slot == dmi_fields[i].field) {
673 sprintf(alias + strlen(alias), ":%s*",
674 dmi_fields[i].prefix);
675 dmi_ascii_filter(alias + strlen(alias),
676 id->matches[j].substr);
677 strcat(alias, "*");
678 }
679 }
680 }
681
682 strcat(alias, ":");
683 return 1;
684}
f606ddf4 685/* Ignore any prefix, eg. some architectures prepend _ */
1da177e4
LT		 686static inline int sym_is(const char *symbol, const char *name)
687{
688 const char *match;
689
690 match = strstr(symbol, name);
691 if (!match)
692 return 0;
693 return match[strlen(symbol)] == '\0';
694}
695
696static void do_table(void *symval, unsigned long size,
697 unsigned long id_size,
fb33d816 698 const char *device_id,
1da177e4
LT		 699 void *function,
700 struct module *mod)
701{
702 unsigned int i;
703 char alias[500];
704 int (*do_entry)(const char *, void *entry, char *alias) = function;
705
e0049825 706 device_id_check(mod->name, device_id, size, id_size, symval);
1da177e4
LT		 707 /* Leave last one: it's the terminator. */
708 size -= id_size;
709
710 for (i = 0; i < size; i += id_size) {
711 if (do_entry(mod->name, symval+i, alias)) {
1da177e4
LT		 712 buf_printf(&mod->dev_table_buf,
713 "MODULE_ALIAS(\"%s\");\n", alias);
714 }
715 }
716}
717
718/* Create MODULE_ALIAS() statements.
719 * At this time, we cannot write the actual output C source yet,
720 * so we write into the mod->dev_table_buf buffer. */
721void handle_moddevtable(struct module *mod, struct elf_info *info,
722 Elf_Sym *sym, const char *symname)
723{
724 void *symval;
e0049825 725 char *zeros = NULL;
1da177e4
LT		 726
727 /* We're looking for a section relative symbol */
728 if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
729 return;
730
e0049825
KC		 731 /* Handle all-NULL symbols allocated into .bss */
732 if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
733 zeros = calloc(1, sym->st_size);
734 symval = zeros;
735 } else {
736 symval = (void *)info->hdr
737 + info->sechdrs[sym->st_shndx].sh_offset
738 + sym->st_value;
739 }
1da177e4
LT		 740
741 if (sym_is(symname, "__mod_pci_device_table"))
fb33d816
SR		 742 do_table(symval, sym->st_size,
743 sizeof(struct pci_device_id), "pci",
1da177e4
LT		 744 do_pci_entry, mod);
745 else if (sym_is(symname, "__mod_usb_device_table"))
b19dcd93
RK		 746 /* special case to handle bcdDevice ranges */
747 do_usb_table(symval, sym->st_size, mod);
1da177e4 748 else if (sym_is(symname, "__mod_ieee1394_device_table"))
fb33d816
SR		 749 do_table(symval, sym->st_size,
750 sizeof(struct ieee1394_device_id), "ieee1394",
1da177e4
LT		 751 do_ieee1394_entry, mod);
752 else if (sym_is(symname, "__mod_ccw_device_table"))
fb33d816
SR		 753 do_table(symval, sym->st_size,
754 sizeof(struct ccw_device_id), "ccw",
1da177e4 755 do_ccw_entry, mod);
1534c382
MS		 756 else if (sym_is(symname, "__mod_ap_device_table"))
757 do_table(symval, sym->st_size,
758 sizeof(struct ap_device_id), "ap",
759 do_ap_entry, mod);
7e9db9ea
CH		 760 else if (sym_is(symname, "__mod_css_device_table"))
761 do_table(symval, sym->st_size,
762 sizeof(struct css_device_id), "css",
763 do_css_entry, mod);
1da177e4 764 else if (sym_is(symname, "__mod_serio_device_table"))
fb33d816
SR		 765 do_table(symval, sym->st_size,
766 sizeof(struct serio_device_id), "serio",
1da177e4 767 do_serio_entry, mod);
29b71a1c
TR		 768 else if (sym_is(symname, "__mod_acpi_device_table"))
769 do_table(symval, sym->st_size,
770 sizeof(struct acpi_device_id), "acpi",
771 do_acpi_entry, mod);
1da177e4 772 else if (sym_is(symname, "__mod_pnp_device_table"))
22454cb9 773 do_pnp_device_entry(symval, sym->st_size, mod);
1da177e4 774 else if (sym_is(symname, "__mod_pnp_card_device_table"))
0c81eed4 775 do_pnp_card_entries(symval, sym->st_size, mod);
90829cfe 776 else if (sym_is(symname, "__mod_pcmcia_device_table"))
fb33d816
SR		 777 do_table(symval, sym->st_size,
778 sizeof(struct pcmcia_device_id), "pcmcia",
90829cfe 779 do_pcmcia_entry, mod);
5e655772 780 else if (sym_is(symname, "__mod_of_device_table"))
fb33d816
SR		 781 do_table(symval, sym->st_size,
782 sizeof(struct of_device_id), "of",
5e655772 783 do_of_entry, mod);
fb120da6 784 else if (sym_is(symname, "__mod_vio_device_table"))
fb33d816
SR		 785 do_table(symval, sym->st_size,
786 sizeof(struct vio_device_id), "vio",
fb120da6 787 do_vio_entry, mod);
1d8f430c 788 else if (sym_is(symname, "__mod_input_device_table"))
fb33d816
SR		 789 do_table(symval, sym->st_size,
790 sizeof(struct input_device_id), "input",
1d8f430c 791 do_input_entry, mod);
07563c71
MT		 792 else if (sym_is(symname, "__mod_eisa_device_table"))
793 do_table(symval, sym->st_size,
794 sizeof(struct eisa_device_id), "eisa",
795 do_eisa_entry, mod);
f3cf2673
KM		 796 else if (sym_is(symname, "__mod_parisc_device_table"))
797 do_table(symval, sym->st_size,
798 sizeof(struct parisc_device_id), "parisc",
799 do_parisc_entry, mod);
d59b66c7
PO		 800 else if (sym_is(symname, "__mod_sdio_device_table"))
801 do_table(symval, sym->st_size,
802 sizeof(struct sdio_device_id), "sdio",
803 do_sdio_entry, mod);
61e115a5
MB		 804 else if (sym_is(symname, "__mod_ssb_device_table"))
805 do_table(symval, sym->st_size,
806 sizeof(struct ssb_device_id), "ssb",
807 do_ssb_entry, mod);
b01d9f28
RR		 808 else if (sym_is(symname, "__mod_virtio_device_table"))
809 do_table(symval, sym->st_size,
810 sizeof(struct virtio_device_id), "virtio",
811 do_virtio_entry, mod);
d2653e92
JD		 812 else if (sym_is(symname, "__mod_i2c_device_table"))
813 do_table(symval, sym->st_size,
814 sizeof(struct i2c_device_id), "i2c",
815 do_i2c_entry, mod);
d945b697
DW		 816 else if (sym_is(symname, "__mod_dmi_device_table"))
817 do_table(symval, sym->st_size,
818 sizeof(struct dmi_system_id), "dmi",
819 do_dmi_entry, mod);
e0049825 820 free(zeros);
1da177e4
LT		 821}
822
823/* Now add out buffered information to the generated C source */
824void add_moddevtable(struct buffer *buf, struct module *mod)
825{
826 buf_printf(buf, "\n");
827 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
828 free(mod->dev_table_buf.p);
829}
Linux kernel - Deliverables
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