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driver core: fix a lot of printk usages of bus_id
[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
LT		 342/* looks like: "pnp:dD" */
343static int do_pnp_entry(const char *filename,
344 struct pnp_device_id *id, char *alias)
345{
ac551828 346 sprintf(alias, "pnp:d%s*", id->id);
1da177e4
LT		 347 return 1;
348}
349
0c81eed4
KS		 350/* looks like: "pnp:dD" for every device of the card */
351static void do_pnp_card_entries(void *symval, unsigned long size,
352 struct module *mod)
1da177e4 353{
0c81eed4
KS		 354 const unsigned long id_size = sizeof(struct pnp_card_device_id);
355 const unsigned int count = (size / id_size)-1;
356 const struct pnp_card_device_id *cards = symval;
357 unsigned int i;
1da177e4 358
0c81eed4
KS		 359 device_id_check(mod->name, "pnp", size, id_size, symval);
360
361 for (i = 0; i < count; i++) {
362 unsigned int j;
363 const struct pnp_card_device_id *card = &cards[i];
364
365 for (j = 0; j < PNP_MAX_DEVICES; j++) {
366 const char *id = (char *)card->devs[j].id;
367 int i2, j2;
368 int dup = 0;
369
370 if (!id[0])
371 break;
372
373 /* find duplicate, already added value */
374 for (i2 = 0; i2 < i && !dup; i2++) {
375 const struct pnp_card_device_id *card2 = &cards[i2];
376
377 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
378 const char *id2 = (char *)card2->devs[j2].id;
379
380 if (!id2[0])
381 break;
382
383 if (!strcmp(id, id2)) {
384 dup = 1;
385 break;
386 }
387 }
388 }
389
390 /* add an individual alias for every device entry */
391 if (!dup)
392 buf_printf(&mod->dev_table_buf,
393 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
394 }
1da177e4 395 }
1da177e4
LT		 396}
397
90829cfe
DB		 398/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
399static int do_pcmcia_entry(const char *filename,
400 struct pcmcia_device_id *id, char *alias)
401{
402 unsigned int i;
403
4fb7edce 404 id->match_flags = TO_NATIVE(id->match_flags);
90829cfe
DB		 405 id->manf_id = TO_NATIVE(id->manf_id);
406 id->card_id = TO_NATIVE(id->card_id);
407 id->func_id = TO_NATIVE(id->func_id);
408 id->function = TO_NATIVE(id->function);
409 id->device_no = TO_NATIVE(id->device_no);
4fb7edce 410
90829cfe
DB		 411 for (i=0; i<4; i++) {
412 id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]);
413 }
414
415 strcpy(alias, "pcmcia:");
416 ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
417 id->manf_id);
418 ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
419 id->card_id);
420 ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
421 id->func_id);
422 ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
423 id->function);
424 ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
425 id->device_no);
426 ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]);
427 ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]);
428 ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]);
429 ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]);
430
ac551828 431 add_wildcard(alias);
90829cfe
DB		 432 return 1;
433}
434
435
436
5e655772
JM		 437static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
438{
d1ab4235 439 int len;
5e655772 440 char *tmp;
d1ab4235 441 len = sprintf (alias, "of:N%sT%s",
5e655772 442 of->name[0] ? of->name : "*",
d1ab4235
SM		 443 of->type[0] ? of->type : "*");
444
445 if (of->compatible[0])
446 sprintf (&alias[len], "%sC%s",
447 of->type[0] ? "*" : "",
448 of->compatible);
5e655772
JM		 449
450 /* Replace all whitespace with underscores */
451 for (tmp = alias; tmp && *tmp; tmp++)
452 if (isspace (*tmp))
453 *tmp = '_';
454
ac551828 455 add_wildcard(alias);
5e655772
JM		 456 return 1;
457}
458
fb120da6
SR		 459static int do_vio_entry(const char *filename, struct vio_device_id *vio,
460 char *alias)
461{
462 char *tmp;
463
464 sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*",
465 vio->compat[0] ? vio->compat : "*");
466
467 /* Replace all whitespace with underscores */
468 for (tmp = alias; tmp && *tmp; tmp++)
469 if (isspace (*tmp))
470 *tmp = '_';
471
ac551828 472 add_wildcard(alias);
fb120da6
SR		 473 return 1;
474}
475
1d8f430c
RR		 476#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
477
478static void do_input(char *alias,
479 kernel_ulong_t *arr, unsigned int min, unsigned int max)
480{
481 unsigned int i;
ddc5d341
DT		 482
483 for (i = min; i < max; i++)
e0e92632 484 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
ddc5d341 485 sprintf(alias + strlen(alias), "%X,*", i);
1d8f430c
RR		 486}
487
488/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
489static int do_input_entry(const char *filename, struct input_device_id *id,
490 char *alias)
491{
492 sprintf(alias, "input:");
493
ddc5d341
DT		 494 ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype);
495 ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor);
496 ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product);
497 ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version);
1d8f430c
RR		 498
499 sprintf(alias + strlen(alias), "-e*");
ddc5d341 500 if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT)
dc24f0e7 501 do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX);
1d8f430c 502 sprintf(alias + strlen(alias), "k*");
ddc5d341 503 if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
dc24f0e7
SR		 504 do_input(alias, id->keybit,
505 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
506 INPUT_DEVICE_ID_KEY_MAX);
1d8f430c 507 sprintf(alias + strlen(alias), "r*");
ddc5d341 508 if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT)
dc24f0e7 509 do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX);
1d8f430c 510 sprintf(alias + strlen(alias), "a*");
ddc5d341 511 if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
dc24f0e7 512 do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
1d8f430c 513 sprintf(alias + strlen(alias), "m*");
ddc5d341 514 if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT)
dc24f0e7 515 do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
1d8f430c 516 sprintf(alias + strlen(alias), "l*");
ddc5d341 517 if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
dc24f0e7 518 do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
1d8f430c 519 sprintf(alias + strlen(alias), "s*");
ddc5d341 520 if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
dc24f0e7 521 do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
1d8f430c 522 sprintf(alias + strlen(alias), "f*");
ddc5d341 523 if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT)
dc24f0e7 524 do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
1d8f430c 525 sprintf(alias + strlen(alias), "w*");
ddc5d341 526 if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT)
dc24f0e7 527 do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
1d8f430c
RR		 528 return 1;
529}
530
07563c71
MT		 531static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
532 char *alias)
533{
534 if (eisa->sig[0])
535 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig);
ac551828
JD		 536 else
537 strcat(alias, "*");
07563c71
MT		 538 return 1;
539}
540
f3cf2673
KM		 541/* Looks like: parisc:tNhvNrevNsvN */
542static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
543 char *alias)
544{
545 id->hw_type = TO_NATIVE(id->hw_type);
546 id->hversion = TO_NATIVE(id->hversion);
547 id->hversion_rev = TO_NATIVE(id->hversion_rev);
548 id->sversion = TO_NATIVE(id->sversion);
549
550 strcpy(alias, "parisc:");
f354ef8a
KM		 551 ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type);
552 ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion);
553 ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev);
554 ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion);
f3cf2673 555
ac551828 556 add_wildcard(alias);
f3cf2673
KM		 557 return 1;
558}
559
d59b66c7
PO		 560/* Looks like: sdio:cNvNdN. */
561static int do_sdio_entry(const char *filename,
562 struct sdio_device_id *id, char *alias)
563{
564 id->class = TO_NATIVE(id->class);
565 id->vendor = TO_NATIVE(id->vendor);
566 id->device = TO_NATIVE(id->device);
567
568 strcpy(alias, "sdio:");
569 ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class);
570 ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor);
571 ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device);
ac551828 572 add_wildcard(alias);
038a5008
LT		 573 return 1;
574}
575
61e115a5
MB		 576/* Looks like: ssb:vNidNrevN. */
577static int do_ssb_entry(const char *filename,
578 struct ssb_device_id *id, char *alias)
579{
580 id->vendor = TO_NATIVE(id->vendor);
581 id->coreid = TO_NATIVE(id->coreid);
582 id->revision = TO_NATIVE(id->revision);
d59b66c7 583
61e115a5
MB		 584 strcpy(alias, "ssb:");
585 ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor);
586 ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid);
587 ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision);
ac551828 588 add_wildcard(alias);
d59b66c7
PO		 589 return 1;
590}
591
b01d9f28
RR		 592/* Looks like: virtio:dNvN */
593static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
594 char *alias)
595{
596 id->device = TO_NATIVE(id->device);
597 id->vendor = TO_NATIVE(id->vendor);
598
599 strcpy(alias, "virtio:");
600 ADD(alias, "d", 1, id->device);
601 ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor);
602
ac551828 603 add_wildcard(alias);
b01d9f28
RR		 604 return 1;
605}
606
d2653e92
JD		 607/* Looks like: i2c:S */
608static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
609 char *alias)
610{
611 sprintf(alias, I2C_MODULE_PREFIX "%s", id->name);
612
613 return 1;
614}
615
1da177e4
LT		 616/* Ignore any prefix, eg. v850 prepends _ */
617static inline int sym_is(const char *symbol, const char *name)
618{
619 const char *match;
620
621 match = strstr(symbol, name);
622 if (!match)
623 return 0;
624 return match[strlen(symbol)] == '\0';
625}
626
627static void do_table(void *symval, unsigned long size,
628 unsigned long id_size,
fb33d816 629 const char *device_id,
1da177e4
LT		 630 void *function,
631 struct module *mod)
632{
633 unsigned int i;
634 char alias[500];
635 int (*do_entry)(const char *, void *entry, char *alias) = function;
636
e0049825 637 device_id_check(mod->name, device_id, size, id_size, symval);
1da177e4
LT		 638 /* Leave last one: it's the terminator. */
639 size -= id_size;
640
641 for (i = 0; i < size; i += id_size) {
642 if (do_entry(mod->name, symval+i, alias)) {
1da177e4
LT		 643 buf_printf(&mod->dev_table_buf,
644 "MODULE_ALIAS(\"%s\");\n", alias);
645 }
646 }
647}
648
649/* Create MODULE_ALIAS() statements.
650 * At this time, we cannot write the actual output C source yet,
651 * so we write into the mod->dev_table_buf buffer. */
652void handle_moddevtable(struct module *mod, struct elf_info *info,
653 Elf_Sym *sym, const char *symname)
654{
655 void *symval;
e0049825 656 char *zeros = NULL;
1da177e4
LT		 657
658 /* We're looking for a section relative symbol */
659 if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
660 return;
661
e0049825
KC		 662 /* Handle all-NULL symbols allocated into .bss */
663 if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
664 zeros = calloc(1, sym->st_size);
665 symval = zeros;
666 } else {
667 symval = (void *)info->hdr
668 + info->sechdrs[sym->st_shndx].sh_offset
669 + sym->st_value;
670 }
1da177e4
LT		 671
672 if (sym_is(symname, "__mod_pci_device_table"))
fb33d816
SR		 673 do_table(symval, sym->st_size,
674 sizeof(struct pci_device_id), "pci",
1da177e4
LT		 675 do_pci_entry, mod);
676 else if (sym_is(symname, "__mod_usb_device_table"))
b19dcd93
RK		 677 /* special case to handle bcdDevice ranges */
678 do_usb_table(symval, sym->st_size, mod);
1da177e4 679 else if (sym_is(symname, "__mod_ieee1394_device_table"))
fb33d816
SR		 680 do_table(symval, sym->st_size,
681 sizeof(struct ieee1394_device_id), "ieee1394",
1da177e4
LT		 682 do_ieee1394_entry, mod);
683 else if (sym_is(symname, "__mod_ccw_device_table"))
fb33d816
SR		 684 do_table(symval, sym->st_size,
685 sizeof(struct ccw_device_id), "ccw",
1da177e4 686 do_ccw_entry, mod);
1534c382
MS		 687 else if (sym_is(symname, "__mod_ap_device_table"))
688 do_table(symval, sym->st_size,
689 sizeof(struct ap_device_id), "ap",
690 do_ap_entry, mod);
7e9db9ea
CH		 691 else if (sym_is(symname, "__mod_css_device_table"))
692 do_table(symval, sym->st_size,
693 sizeof(struct css_device_id), "css",
694 do_css_entry, mod);
1da177e4 695 else if (sym_is(symname, "__mod_serio_device_table"))
fb33d816
SR		 696 do_table(symval, sym->st_size,
697 sizeof(struct serio_device_id), "serio",
1da177e4 698 do_serio_entry, mod);
29b71a1c
TR		 699 else if (sym_is(symname, "__mod_acpi_device_table"))
700 do_table(symval, sym->st_size,
701 sizeof(struct acpi_device_id), "acpi",
702 do_acpi_entry, mod);
1da177e4 703 else if (sym_is(symname, "__mod_pnp_device_table"))
fb33d816
SR		 704 do_table(symval, sym->st_size,
705 sizeof(struct pnp_device_id), "pnp",
1da177e4
LT		 706 do_pnp_entry, mod);
707 else if (sym_is(symname, "__mod_pnp_card_device_table"))
0c81eed4 708 do_pnp_card_entries(symval, sym->st_size, mod);
90829cfe 709 else if (sym_is(symname, "__mod_pcmcia_device_table"))
fb33d816
SR		 710 do_table(symval, sym->st_size,
711 sizeof(struct pcmcia_device_id), "pcmcia",
90829cfe 712 do_pcmcia_entry, mod);
5e655772 713 else if (sym_is(symname, "__mod_of_device_table"))
fb33d816
SR		 714 do_table(symval, sym->st_size,
715 sizeof(struct of_device_id), "of",
5e655772 716 do_of_entry, mod);
fb120da6 717 else if (sym_is(symname, "__mod_vio_device_table"))
fb33d816
SR		 718 do_table(symval, sym->st_size,
719 sizeof(struct vio_device_id), "vio",
fb120da6 720 do_vio_entry, mod);
1d8f430c 721 else if (sym_is(symname, "__mod_input_device_table"))
fb33d816
SR		 722 do_table(symval, sym->st_size,
723 sizeof(struct input_device_id), "input",
1d8f430c 724 do_input_entry, mod);
07563c71
MT		 725 else if (sym_is(symname, "__mod_eisa_device_table"))
726 do_table(symval, sym->st_size,
727 sizeof(struct eisa_device_id), "eisa",
728 do_eisa_entry, mod);
f3cf2673
KM		 729 else if (sym_is(symname, "__mod_parisc_device_table"))
730 do_table(symval, sym->st_size,
731 sizeof(struct parisc_device_id), "parisc",
732 do_parisc_entry, mod);
d59b66c7
PO		 733 else if (sym_is(symname, "__mod_sdio_device_table"))
734 do_table(symval, sym->st_size,
735 sizeof(struct sdio_device_id), "sdio",
736 do_sdio_entry, mod);
61e115a5
MB		 737 else if (sym_is(symname, "__mod_ssb_device_table"))
738 do_table(symval, sym->st_size,
739 sizeof(struct ssb_device_id), "ssb",
740 do_ssb_entry, mod);
b01d9f28
RR		 741 else if (sym_is(symname, "__mod_virtio_device_table"))
742 do_table(symval, sym->st_size,
743 sizeof(struct virtio_device_id), "virtio",
744 do_virtio_entry, mod);
d2653e92
JD		 745 else if (sym_is(symname, "__mod_i2c_device_table"))
746 do_table(symval, sym->st_size,
747 sizeof(struct i2c_device_id), "i2c",
748 do_i2c_entry, mod);
e0049825 749 free(zeros);
1da177e4
LT		 750}
751
752/* Now add out buffered information to the generated C source */
753void add_moddevtable(struct buffer *buf, struct module *mod)
754{
755 buf_printf(buf, "\n");
756 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
757 free(mod->dev_table_buf.p);
758}
Linux kernel - Deliverables
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