Commit | Line | Data |
---|---|---|
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 | |
18 | typedef Elf32_Addr kernel_ulong_t; | |
1d8f430c | 19 | #define BITS_PER_LONG 32 |
1da177e4 LT |
20 | #else |
21 | typedef 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 |
32 | typedef uint32_t __u32; |
33 | typedef uint16_t __u16; | |
34 | typedef 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) \ | |
42 | do { \ | |
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 */ |
55 | static 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 | 63 | unsigned 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 |
71 | static 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" */ | |
104 | static 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 | ||
150 | static 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 | ||
194 | static 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 */ | |
210 | static 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. */ | |
234 | static 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 |
277 | static 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" */ |
300 | static 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" */ |
308 | static 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" */ |
316 | static 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" */ |
335 | static 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 |
343 | static 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 */ |
364 | static 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. */ |
415 | static 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 |
453 | static 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 |
475 | static 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 | ||
494 | static 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. */ | |
505 | static 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 |
547 | static 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 */ |
558 | static 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. */ |
577 | static 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. */ |
593 | static 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 */ |
609 | static 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 */ |
624 | static 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 |
632 | static 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 | ||
651 | static 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 | ||
662 | static 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 |
686 | static 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 | ||
696 | static 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. */ | |
721 | void 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 */ | |
824 | void 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 | } |