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USB: add hex/bcd detection to usb modalias generation
[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,
afe2dab4 107 unsigned char max, 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)
afe2dab4
NM		 121 sprintf(alias + strlen(alias), "%X", range_lo);
122 else if (range_lo > 0 || range_hi < max) {
123 if (range_lo > 0x9 || range_hi < 0xA)
124 sprintf(alias + strlen(alias),
125 "[%X-%X]",
126 range_lo,
127 range_hi);
128 else {
129 sprintf(alias + strlen(alias),
130 range_lo < 0x9 ? "[%X-9" : "[%X",
131 range_lo);
132 sprintf(alias + strlen(alias),
133 range_hi > 0xA ? "a-%X]" : "%X]",
134 range_lo);
135 }
136 }
b19dcd93
RK		 137 if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1))
138 strcat(alias, "*");
139
1da177e4
LT		 140 ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
141 id->bDeviceClass);
142 ADD(alias, "dsc",
143 id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
144 id->bDeviceSubClass);
145 ADD(alias, "dp",
146 id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
147 id->bDeviceProtocol);
148 ADD(alias, "ic",
149 id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
150 id->bInterfaceClass);
151 ADD(alias, "isc",
152 id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
153 id->bInterfaceSubClass);
154 ADD(alias, "ip",
155 id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
156 id->bInterfaceProtocol);
b19dcd93 157
ac551828 158 add_wildcard(alias);
b19dcd93
RK		 159 buf_printf(&mod->dev_table_buf,
160 "MODULE_ALIAS(\"%s\");\n", alias);
161}
162
163static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod)
164{
165 unsigned int devlo, devhi;
afe2dab4 166 unsigned char chi, clo, max;
b19dcd93
RK		 167 int ndigits;
168
169 id->match_flags = TO_NATIVE(id->match_flags);
170 id->idVendor = TO_NATIVE(id->idVendor);
171 id->idProduct = TO_NATIVE(id->idProduct);
172
173 devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
174 TO_NATIVE(id->bcdDevice_lo) : 0x0U;
175 devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
176 TO_NATIVE(id->bcdDevice_hi) : ~0x0U;
177
afe2dab4
NM		 178 /* Figure out if this entry is in bcd or hex format */
179 max = 0x9; /* Default to decimal format */
180 for (ndigits = 0 ; ndigits < sizeof(id->bcdDevice_lo) * 2 ; ndigits++) {
181 clo = (devlo >> (ndigits << 2)) & 0xf;
182 chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf;
183 if (clo > max || chi > max) {
184 max = 0xf;
185 break;
186 }
187 }
188
b19dcd93
RK		 189 /*
190 * Some modules (visor) have empty slots as placeholder for
191 * run-time specification that results in catch-all alias
192 */
de6f92b9 193 if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass))
b19dcd93
RK		 194 return;
195
196 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
197 for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
198 clo = devlo & 0xf;
199 chi = devhi & 0xf;
afe2dab4
NM		 200 if (chi > max) /* If we are in bcd mode, truncate if necessary */
201 chi = max;
b19dcd93
RK		 202 devlo >>= 4;
203 devhi >>= 4;
204
205 if (devlo == devhi || !ndigits) {
afe2dab4 206 do_usb_entry(id, devlo, ndigits, clo, chi, max, mod);
b19dcd93
RK		 207 break;
208 }
209
afe2dab4
NM		 210 if (clo > 0x0)
211 do_usb_entry(id, devlo++, ndigits, clo, max, max, mod);
b19dcd93 212
afe2dab4
NM		 213 if (chi < max)
214 do_usb_entry(id, devhi--, ndigits, 0x0, chi, max, mod);
b19dcd93
RK		 215 }
216}
217
218static void do_usb_table(void *symval, unsigned long size,
219 struct module *mod)
220{
221 unsigned int i;
222 const unsigned long id_size = sizeof(struct usb_device_id);
223
e0049825 224 device_id_check(mod->name, "usb", size, id_size, symval);
fb33d816 225
b19dcd93
RK		 226 /* Leave last one: it's the terminator. */
227 size -= id_size;
228
229 for (i = 0; i < size; i += id_size)
230 do_usb_entry_multi(symval + i, mod);
1da177e4
LT		 231}
232
e8c84f9a
JS		 233/* Looks like: hid:bNvNpN */
234static int do_hid_entry(const char *filename,
235 struct hid_device_id *id, char *alias)
236{
2b639386 237 id->bus = TO_NATIVE(id->bus);
e8c84f9a
JS		 238 id->vendor = TO_NATIVE(id->vendor);
239 id->product = TO_NATIVE(id->product);
240
241 sprintf(alias, "hid:b%04X", id->bus);
242 ADD(alias, "v", id->vendor != HID_ANY_ID, id->vendor);
243 ADD(alias, "p", id->product != HID_ANY_ID, id->product);
244
245 return 1;
246}
247
1da177e4
LT		 248/* Looks like: ieee1394:venNmoNspNverN */
249static int do_ieee1394_entry(const char *filename,
250 struct ieee1394_device_id *id, char *alias)
251{
252 id->match_flags = TO_NATIVE(id->match_flags);
253 id->vendor_id = TO_NATIVE(id->vendor_id);
254 id->model_id = TO_NATIVE(id->model_id);
255 id->specifier_id = TO_NATIVE(id->specifier_id);
256 id->version = TO_NATIVE(id->version);
257
258 strcpy(alias, "ieee1394:");
259 ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID,
260 id->vendor_id);
261 ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID,
262 id->model_id);
263 ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID,
264 id->specifier_id);
265 ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION,
266 id->version);
267
ac551828 268 add_wildcard(alias);
1da177e4
LT		 269 return 1;
270}
271
272/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
273static int do_pci_entry(const char *filename,
274 struct pci_device_id *id, char *alias)
275{
276 /* Class field can be divided into these three. */
277 unsigned char baseclass, subclass, interface,
278 baseclass_mask, subclass_mask, interface_mask;
279
280 id->vendor = TO_NATIVE(id->vendor);
281 id->device = TO_NATIVE(id->device);
282 id->subvendor = TO_NATIVE(id->subvendor);
283 id->subdevice = TO_NATIVE(id->subdevice);
284 id->class = TO_NATIVE(id->class);
285 id->class_mask = TO_NATIVE(id->class_mask);
286
287 strcpy(alias, "pci:");
288 ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor);
289 ADD(alias, "d", id->device != PCI_ANY_ID, id->device);
290 ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor);
291 ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice);
292
293 baseclass = (id->class) >> 16;
294 baseclass_mask = (id->class_mask) >> 16;
295 subclass = (id->class) >> 8;
296 subclass_mask = (id->class_mask) >> 8;
297 interface = id->class;
298 interface_mask = id->class_mask;
299
300 if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
301 || (subclass_mask != 0 && subclass_mask != 0xFF)
302 || (interface_mask != 0 && interface_mask != 0xFF)) {
cb80514d
SR		 303 warn("Can't handle masks in %s:%04X\n",
304 filename, id->class_mask);
1da177e4
LT		 305 return 0;
306 }
307
308 ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
309 ADD(alias, "sc", subclass_mask == 0xFF, subclass);
310 ADD(alias, "i", interface_mask == 0xFF, interface);
ac551828 311 add_wildcard(alias);
1da177e4
LT		 312 return 1;
313}
314
62070fa4 315/* looks like: "ccw:tNmNdtNdmN" */
1da177e4
LT		 316static int do_ccw_entry(const char *filename,
317 struct ccw_device_id *id, char *alias)
318{
319 id->match_flags = TO_NATIVE(id->match_flags);
320 id->cu_type = TO_NATIVE(id->cu_type);
321 id->cu_model = TO_NATIVE(id->cu_model);
322 id->dev_type = TO_NATIVE(id->dev_type);
323 id->dev_model = TO_NATIVE(id->dev_model);
324
325 strcpy(alias, "ccw:");
326 ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
327 id->cu_type);
328 ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
329 id->cu_model);
330 ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
331 id->dev_type);
de1d9c03 332 ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
1da177e4 333 id->dev_model);
ac551828 334 add_wildcard(alias);
1da177e4
LT		 335 return 1;
336}
337
1534c382
MS		 338/* looks like: "ap:tN" */
339static int do_ap_entry(const char *filename,
340 struct ap_device_id *id, char *alias)
341{
ac551828 342 sprintf(alias, "ap:t%02X*", id->dev_type);
1534c382
MS		 343 return 1;
344}
345
7e9db9ea
CH		 346/* looks like: "css:tN" */
347static int do_css_entry(const char *filename,
348 struct css_device_id *id, char *alias)
349{
350 sprintf(alias, "css:t%01X", id->type);
351 return 1;
352}
353
1da177e4
LT		 354/* Looks like: "serio:tyNprNidNexN" */
355static int do_serio_entry(const char *filename,
356 struct serio_device_id *id, char *alias)
357{
358 id->type = TO_NATIVE(id->type);
359 id->proto = TO_NATIVE(id->proto);
360 id->id = TO_NATIVE(id->id);
361 id->extra = TO_NATIVE(id->extra);
362
363 strcpy(alias, "serio:");
364 ADD(alias, "ty", id->type != SERIO_ANY, id->type);
365 ADD(alias, "pr", id->proto != SERIO_ANY, id->proto);
366 ADD(alias, "id", id->id != SERIO_ANY, id->id);
367 ADD(alias, "ex", id->extra != SERIO_ANY, id->extra);
368
ac551828 369 add_wildcard(alias);
1da177e4
LT		 370 return 1;
371}
372
29b71a1c
TR		 373/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
374static int do_acpi_entry(const char *filename,
375 struct acpi_device_id *id, char *alias)
376{
ac551828 377 sprintf(alias, "acpi*:%s:*", id->id);
29b71a1c
TR		 378 return 1;
379}
380
1da177e4 381/* looks like: "pnp:dD" */
22454cb9
KS		 382static void do_pnp_device_entry(void *symval, unsigned long size,
383 struct module *mod)
1da177e4 384{
22454cb9 385 const unsigned long id_size = sizeof(struct pnp_device_id);
5e4c6564
KS		 386 const unsigned int count = (size / id_size)-1;
387 const struct pnp_device_id *devs = symval;
388 unsigned int i;
22454cb9
KS		 389
390 device_id_check(mod->name, "pnp", size, id_size, symval);
391
5e4c6564
KS		 392 for (i = 0; i < count; i++) {
393 const char *id = (char *)devs[i].id;
72638f59
KS		 394 char acpi_id[sizeof(devs[0].id)];
395 int j;
5e4c6564
KS		 396
397 buf_printf(&mod->dev_table_buf,
398 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
72638f59
KS		 399
400 /* fix broken pnp bus lowercasing */
401 for (j = 0; j < sizeof(acpi_id); j++)
402 acpi_id[j] = toupper(id[j]);
5e4c6564 403 buf_printf(&mod->dev_table_buf,
72638f59 404 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
5e4c6564 405 }
1da177e4
LT		 406}
407
0c81eed4
KS		 408/* looks like: "pnp:dD" for every device of the card */
409static void do_pnp_card_entries(void *symval, unsigned long size,
410 struct module *mod)
1da177e4 411{
0c81eed4
KS		 412 const unsigned long id_size = sizeof(struct pnp_card_device_id);
413 const unsigned int count = (size / id_size)-1;
414 const struct pnp_card_device_id *cards = symval;
415 unsigned int i;
1da177e4 416
0c81eed4
KS		 417 device_id_check(mod->name, "pnp", size, id_size, symval);
418
419 for (i = 0; i < count; i++) {
420 unsigned int j;
421 const struct pnp_card_device_id *card = &cards[i];
422
423 for (j = 0; j < PNP_MAX_DEVICES; j++) {
424 const char *id = (char *)card->devs[j].id;
425 int i2, j2;
426 int dup = 0;
427
428 if (!id[0])
429 break;
430
431 /* find duplicate, already added value */
432 for (i2 = 0; i2 < i && !dup; i2++) {
433 const struct pnp_card_device_id *card2 = &cards[i2];
434
435 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
436 const char *id2 = (char *)card2->devs[j2].id;
437
438 if (!id2[0])
439 break;
440
441 if (!strcmp(id, id2)) {
442 dup = 1;
443 break;
444 }
445 }
446 }
447
448 /* add an individual alias for every device entry */
22454cb9 449 if (!dup) {
72638f59
KS		 450 char acpi_id[sizeof(card->devs[0].id)];
451 int k;
452
0c81eed4
KS		 453 buf_printf(&mod->dev_table_buf,
454 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
72638f59
KS		 455
456 /* fix broken pnp bus lowercasing */
457 for (k = 0; k < sizeof(acpi_id); k++)
458 acpi_id[k] = toupper(id[k]);
22454cb9 459 buf_printf(&mod->dev_table_buf,
72638f59 460 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
22454cb9 461 }
0c81eed4 462 }
1da177e4 463 }
1da177e4
LT		 464}
465
90829cfe
DB		 466/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
467static int do_pcmcia_entry(const char *filename,
468 struct pcmcia_device_id *id, char *alias)
469{
470 unsigned int i;
471
4fb7edce 472 id->match_flags = TO_NATIVE(id->match_flags);
90829cfe
DB		 473 id->manf_id = TO_NATIVE(id->manf_id);
474 id->card_id = TO_NATIVE(id->card_id);
475 id->func_id = TO_NATIVE(id->func_id);
476 id->function = TO_NATIVE(id->function);
477 id->device_no = TO_NATIVE(id->device_no);
4fb7edce 478
90829cfe
DB		 479 for (i=0; i<4; i++) {
480 id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]);
481 }
482
483 strcpy(alias, "pcmcia:");
484 ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
485 id->manf_id);
486 ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
487 id->card_id);
488 ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
489 id->func_id);
490 ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
491 id->function);
492 ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
493 id->device_no);
494 ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]);
495 ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]);
496 ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]);
497 ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]);
498
ac551828 499 add_wildcard(alias);
90829cfe
DB		 500 return 1;
501}
502
503
504
5e655772
JM		 505static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
506{
d1ab4235 507 int len;
5e655772 508 char *tmp;
d1ab4235 509 len = sprintf (alias, "of:N%sT%s",
5e655772 510 of->name[0] ? of->name : "*",
d1ab4235
SM		 511 of->type[0] ? of->type : "*");
512
513 if (of->compatible[0])
514 sprintf (&alias[len], "%sC%s",
515 of->type[0] ? "*" : "",
516 of->compatible);
5e655772
JM		 517
518 /* Replace all whitespace with underscores */
519 for (tmp = alias; tmp && *tmp; tmp++)
520 if (isspace (*tmp))
521 *tmp = '_';
522
ac551828 523 add_wildcard(alias);
5e655772
JM		 524 return 1;
525}
526
fb120da6
SR		 527static int do_vio_entry(const char *filename, struct vio_device_id *vio,
528 char *alias)
529{
530 char *tmp;
531
532 sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*",
533 vio->compat[0] ? vio->compat : "*");
534
535 /* Replace all whitespace with underscores */
536 for (tmp = alias; tmp && *tmp; tmp++)
537 if (isspace (*tmp))
538 *tmp = '_';
539
ac551828 540 add_wildcard(alias);
fb120da6
SR		 541 return 1;
542}
543
1d8f430c
RR		 544#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
545
546static void do_input(char *alias,
547 kernel_ulong_t *arr, unsigned int min, unsigned int max)
548{
549 unsigned int i;
ddc5d341
DT		 550
551 for (i = min; i < max; i++)
e0e92632 552 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
ddc5d341 553 sprintf(alias + strlen(alias), "%X,*", i);
1d8f430c
RR		 554}
555
556/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
557static int do_input_entry(const char *filename, struct input_device_id *id,
558 char *alias)
559{
560 sprintf(alias, "input:");
561
ddc5d341
DT		 562 ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype);
563 ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor);
564 ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product);
565 ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version);
1d8f430c
RR		 566
567 sprintf(alias + strlen(alias), "-e*");
ddc5d341 568 if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT)
dc24f0e7 569 do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX);
1d8f430c 570 sprintf(alias + strlen(alias), "k*");
ddc5d341 571 if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
dc24f0e7
SR		 572 do_input(alias, id->keybit,
573 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
574 INPUT_DEVICE_ID_KEY_MAX);
1d8f430c 575 sprintf(alias + strlen(alias), "r*");
ddc5d341 576 if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT)
dc24f0e7 577 do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX);
1d8f430c 578 sprintf(alias + strlen(alias), "a*");
ddc5d341 579 if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
dc24f0e7 580 do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
1d8f430c 581 sprintf(alias + strlen(alias), "m*");
ddc5d341 582 if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT)
dc24f0e7 583 do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
1d8f430c 584 sprintf(alias + strlen(alias), "l*");
ddc5d341 585 if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
dc24f0e7 586 do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
1d8f430c 587 sprintf(alias + strlen(alias), "s*");
ddc5d341 588 if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
dc24f0e7 589 do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
1d8f430c 590 sprintf(alias + strlen(alias), "f*");
ddc5d341 591 if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT)
dc24f0e7 592 do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
1d8f430c 593 sprintf(alias + strlen(alias), "w*");
ddc5d341 594 if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT)
dc24f0e7 595 do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
1d8f430c
RR		 596 return 1;
597}
598
07563c71
MT		 599static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
600 char *alias)
601{
602 if (eisa->sig[0])
603 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);
ac551828
JD		 604 else
605 strcat(alias, "*");
07563c71
MT		 606 return 1;
607}
608
f3cf2673
KM		 609/* Looks like: parisc:tNhvNrevNsvN */
610static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
611 char *alias)
612{
613 id->hw_type = TO_NATIVE(id->hw_type);
614 id->hversion = TO_NATIVE(id->hversion);
615 id->hversion_rev = TO_NATIVE(id->hversion_rev);
616 id->sversion = TO_NATIVE(id->sversion);
617
618 strcpy(alias, "parisc:");
f354ef8a
KM		 619 ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type);
620 ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion);
621 ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev);
622 ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion);
f3cf2673 623
ac551828 624 add_wildcard(alias);
f3cf2673
KM		 625 return 1;
626}
627
d59b66c7
PO		 628/* Looks like: sdio:cNvNdN. */
629static int do_sdio_entry(const char *filename,
630 struct sdio_device_id *id, char *alias)
631{
632 id->class = TO_NATIVE(id->class);
633 id->vendor = TO_NATIVE(id->vendor);
634 id->device = TO_NATIVE(id->device);
635
636 strcpy(alias, "sdio:");
637 ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class);
638 ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor);
639 ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device);
ac551828 640 add_wildcard(alias);
038a5008
LT		 641 return 1;
642}
643
61e115a5
MB		 644/* Looks like: ssb:vNidNrevN. */
645static int do_ssb_entry(const char *filename,
646 struct ssb_device_id *id, char *alias)
647{
648 id->vendor = TO_NATIVE(id->vendor);
649 id->coreid = TO_NATIVE(id->coreid);
650 id->revision = TO_NATIVE(id->revision);
d59b66c7 651
61e115a5
MB		 652 strcpy(alias, "ssb:");
653 ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor);
654 ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid);
655 ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision);
ac551828 656 add_wildcard(alias);
d59b66c7
PO		 657 return 1;
658}
659
b01d9f28
RR		 660/* Looks like: virtio:dNvN */
661static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
662 char *alias)
663{
664 id->device = TO_NATIVE(id->device);
665 id->vendor = TO_NATIVE(id->vendor);
666
667 strcpy(alias, "virtio:");
e3353853 668 ADD(alias, "d", id->device != VIRTIO_DEV_ANY_ID, id->device);
b01d9f28
RR		 669 ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor);
670
ac551828 671 add_wildcard(alias);
b01d9f28
RR		 672 return 1;
673}
674
d2653e92
JD		 675/* Looks like: i2c:S */
676static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
677 char *alias)
678{
679 sprintf(alias, I2C_MODULE_PREFIX "%s", id->name);
680
681 return 1;
682}
683
e0626e38 684/* Looks like: spi:S */
75368bf6
AV		 685static int do_spi_entry(const char *filename, struct spi_device_id *id,
686 char *alias)
687{
e0626e38 688 sprintf(alias, SPI_MODULE_PREFIX "%s", id->name);
75368bf6
AV		 689
690 return 1;
691}
692
d945b697
DW		 693static const struct dmifield {
694 const char *prefix;
695 int field;
696} dmi_fields[] = {
697 { "bvn", DMI_BIOS_VENDOR },
698 { "bvr", DMI_BIOS_VERSION },
699 { "bd", DMI_BIOS_DATE },
700 { "svn", DMI_SYS_VENDOR },
701 { "pn", DMI_PRODUCT_NAME },
702 { "pvr", DMI_PRODUCT_VERSION },
703 { "rvn", DMI_BOARD_VENDOR },
704 { "rn", DMI_BOARD_NAME },
705 { "rvr", DMI_BOARD_VERSION },
706 { "cvn", DMI_CHASSIS_VENDOR },
707 { "ct", DMI_CHASSIS_TYPE },
708 { "cvr", DMI_CHASSIS_VERSION },
709 { NULL, DMI_NONE }
710};
711
712static void dmi_ascii_filter(char *d, const char *s)
713{
714 /* Filter out characters we don't want to see in the modalias string */
715 for (; *s; s++)
716 if (*s > ' ' && *s < 127 && *s != ':')
717 *(d++) = *s;
718
719 *d = 0;
720}
721
722
723static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
724 char *alias)
725{
726 int i, j;
727
728 sprintf(alias, "dmi*");
729
730 for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
731 for (j = 0; j < 4; j++) {
732 if (id->matches[j].slot &&
733 id->matches[j].slot == dmi_fields[i].field) {
734 sprintf(alias + strlen(alias), ":%s*",
735 dmi_fields[i].prefix);
736 dmi_ascii_filter(alias + strlen(alias),
737 id->matches[j].substr);
738 strcat(alias, "*");
739 }
740 }
741 }
742
743 strcat(alias, ":");
744 return 1;
745}
57fee4a5
EM		 746
747static int do_platform_entry(const char *filename,
748 struct platform_device_id *id, char *alias)
749{
750 sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name);
751 return 1;
752}
753
f606ddf4 754/* Ignore any prefix, eg. some architectures prepend _ */
1da177e4
LT		 755static inline int sym_is(const char *symbol, const char *name)
756{
757 const char *match;
758
759 match = strstr(symbol, name);
760 if (!match)
761 return 0;
762 return match[strlen(symbol)] == '\0';
763}
764
765static void do_table(void *symval, unsigned long size,
766 unsigned long id_size,
fb33d816 767 const char *device_id,
1da177e4
LT		 768 void *function,
769 struct module *mod)
770{
771 unsigned int i;
772 char alias[500];
773 int (*do_entry)(const char *, void *entry, char *alias) = function;
774
e0049825 775 device_id_check(mod->name, device_id, size, id_size, symval);
1da177e4
LT		 776 /* Leave last one: it's the terminator. */
777 size -= id_size;
778
779 for (i = 0; i < size; i += id_size) {
780 if (do_entry(mod->name, symval+i, alias)) {
1da177e4
LT		 781 buf_printf(&mod->dev_table_buf,
782 "MODULE_ALIAS(\"%s\");\n", alias);
783 }
784 }
785}
786
787/* Create MODULE_ALIAS() statements.
788 * At this time, we cannot write the actual output C source yet,
789 * so we write into the mod->dev_table_buf buffer. */
790void handle_moddevtable(struct module *mod, struct elf_info *info,
791 Elf_Sym *sym, const char *symname)
792{
793 void *symval;
e0049825 794 char *zeros = NULL;
1da177e4
LT		 795
796 /* We're looking for a section relative symbol */
797 if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
798 return;
799
e0049825
KC		 800 /* Handle all-NULL symbols allocated into .bss */
801 if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
802 zeros = calloc(1, sym->st_size);
803 symval = zeros;
804 } else {
805 symval = (void *)info->hdr
806 + info->sechdrs[sym->st_shndx].sh_offset
807 + sym->st_value;
808 }
1da177e4
LT		 809
810 if (sym_is(symname, "__mod_pci_device_table"))
fb33d816
SR		 811 do_table(symval, sym->st_size,
812 sizeof(struct pci_device_id), "pci",
1da177e4
LT		 813 do_pci_entry, mod);
814 else if (sym_is(symname, "__mod_usb_device_table"))
b19dcd93
RK		 815 /* special case to handle bcdDevice ranges */
816 do_usb_table(symval, sym->st_size, mod);
e8c84f9a
JS		 817 else if (sym_is(symname, "__mod_hid_device_table"))
818 do_table(symval, sym->st_size,
819 sizeof(struct hid_device_id), "hid",
820 do_hid_entry, mod);
1da177e4 821 else if (sym_is(symname, "__mod_ieee1394_device_table"))
fb33d816
SR		 822 do_table(symval, sym->st_size,
823 sizeof(struct ieee1394_device_id), "ieee1394",
1da177e4
LT		 824 do_ieee1394_entry, mod);
825 else if (sym_is(symname, "__mod_ccw_device_table"))
fb33d816
SR		 826 do_table(symval, sym->st_size,
827 sizeof(struct ccw_device_id), "ccw",
1da177e4 828 do_ccw_entry, mod);
1534c382
MS		 829 else if (sym_is(symname, "__mod_ap_device_table"))
830 do_table(symval, sym->st_size,
831 sizeof(struct ap_device_id), "ap",
832 do_ap_entry, mod);
7e9db9ea
CH		 833 else if (sym_is(symname, "__mod_css_device_table"))
834 do_table(symval, sym->st_size,
835 sizeof(struct css_device_id), "css",
836 do_css_entry, mod);
1da177e4 837 else if (sym_is(symname, "__mod_serio_device_table"))
fb33d816
SR		 838 do_table(symval, sym->st_size,
839 sizeof(struct serio_device_id), "serio",
1da177e4 840 do_serio_entry, mod);
29b71a1c
TR		 841 else if (sym_is(symname, "__mod_acpi_device_table"))
842 do_table(symval, sym->st_size,
843 sizeof(struct acpi_device_id), "acpi",
844 do_acpi_entry, mod);
1da177e4 845 else if (sym_is(symname, "__mod_pnp_device_table"))
22454cb9 846 do_pnp_device_entry(symval, sym->st_size, mod);
1da177e4 847 else if (sym_is(symname, "__mod_pnp_card_device_table"))
0c81eed4 848 do_pnp_card_entries(symval, sym->st_size, mod);
90829cfe 849 else if (sym_is(symname, "__mod_pcmcia_device_table"))
fb33d816
SR		 850 do_table(symval, sym->st_size,
851 sizeof(struct pcmcia_device_id), "pcmcia",
90829cfe 852 do_pcmcia_entry, mod);
5e655772 853 else if (sym_is(symname, "__mod_of_device_table"))
fb33d816
SR		 854 do_table(symval, sym->st_size,
855 sizeof(struct of_device_id), "of",
5e655772 856 do_of_entry, mod);
fb120da6 857 else if (sym_is(symname, "__mod_vio_device_table"))
fb33d816
SR		 858 do_table(symval, sym->st_size,
859 sizeof(struct vio_device_id), "vio",
fb120da6 860 do_vio_entry, mod);
1d8f430c 861 else if (sym_is(symname, "__mod_input_device_table"))
fb33d816
SR		 862 do_table(symval, sym->st_size,
863 sizeof(struct input_device_id), "input",
1d8f430c 864 do_input_entry, mod);
07563c71
MT		 865 else if (sym_is(symname, "__mod_eisa_device_table"))
866 do_table(symval, sym->st_size,
867 sizeof(struct eisa_device_id), "eisa",
868 do_eisa_entry, mod);
f3cf2673
KM		 869 else if (sym_is(symname, "__mod_parisc_device_table"))
870 do_table(symval, sym->st_size,
871 sizeof(struct parisc_device_id), "parisc",
872 do_parisc_entry, mod);
d59b66c7
PO		 873 else if (sym_is(symname, "__mod_sdio_device_table"))
874 do_table(symval, sym->st_size,
875 sizeof(struct sdio_device_id), "sdio",
876 do_sdio_entry, mod);
61e115a5
MB		 877 else if (sym_is(symname, "__mod_ssb_device_table"))
878 do_table(symval, sym->st_size,
879 sizeof(struct ssb_device_id), "ssb",
880 do_ssb_entry, mod);
b01d9f28
RR		 881 else if (sym_is(symname, "__mod_virtio_device_table"))
882 do_table(symval, sym->st_size,
883 sizeof(struct virtio_device_id), "virtio",
884 do_virtio_entry, mod);
d2653e92
JD		 885 else if (sym_is(symname, "__mod_i2c_device_table"))
886 do_table(symval, sym->st_size,
887 sizeof(struct i2c_device_id), "i2c",
888 do_i2c_entry, mod);
75368bf6
AV		 889 else if (sym_is(symname, "__mod_spi_device_table"))
890 do_table(symval, sym->st_size,
891 sizeof(struct spi_device_id), "spi",
892 do_spi_entry, mod);
d945b697
DW		 893 else if (sym_is(symname, "__mod_dmi_device_table"))
894 do_table(symval, sym->st_size,
895 sizeof(struct dmi_system_id), "dmi",
896 do_dmi_entry, mod);
57fee4a5
EM		 897 else if (sym_is(symname, "__mod_platform_device_table"))
898 do_table(symval, sym->st_size,
899 sizeof(struct platform_device_id), "platform",
900 do_platform_entry, mod);
e0049825 901 free(zeros);
1da177e4
LT		 902}
903
904/* Now add out buffered information to the generated C source */
905void add_moddevtable(struct buffer *buf, struct module *mod)
906{
907 buf_printf(buf, "\n");
908 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
909 free(mod->dev_table_buf.p);
910}
Linux kernel - Deliverables
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