Commit | Line | Data |
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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 | ||
fb33d816 SR |
54 | /** |
55 | * Check that sizeof(device_id type) are consistent with size of section | |
56 | * in .o file. If in-consistent then userspace and kernel does not agree | |
57 | * on actual size which is a bug. | |
e0049825 | 58 | * Also verify that the final entry in the table is all zeros. |
fb33d816 | 59 | **/ |
e0049825 KC |
60 | static void device_id_check(const char *modname, const char *device_id, |
61 | unsigned long size, unsigned long id_size, | |
62 | void *symval) | |
fb33d816 | 63 | { |
e0049825 KC |
64 | int i; |
65 | ||
fb33d816 SR |
66 | if (size % id_size || size < id_size) { |
67 | fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo " | |
68 | "of the size of section __mod_%s_device_table=%lu.\n" | |
69 | "Fix definition of struct %s_device_id " | |
70 | "in mod_devicetable.h\n", | |
71 | modname, device_id, id_size, device_id, size, device_id); | |
72 | } | |
e0049825 KC |
73 | /* Verify last one is a terminator */ |
74 | for (i = 0; i < id_size; i++ ) { | |
75 | if (*(uint8_t*)(symval+size-id_size+i)) { | |
76 | fprintf(stderr,"%s: struct %s_device_id is %lu bytes. " | |
77 | "The last of %lu is:\n", | |
78 | modname, device_id, id_size, size / id_size); | |
79 | for (i = 0; i < id_size; i++ ) | |
80 | fprintf(stderr,"0x%02x ", | |
81 | *(uint8_t*)(symval+size-id_size+i) ); | |
82 | fprintf(stderr,"\n"); | |
83 | fatal("%s: struct %s_device_id is not terminated " | |
84 | "with a NULL entry!\n", modname, device_id); | |
85 | } | |
86 | } | |
fb33d816 SR |
87 | } |
88 | ||
b19dcd93 RK |
89 | /* USB is special because the bcdDevice can be matched against a numeric range */ |
90 | /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */ | |
91 | static void do_usb_entry(struct usb_device_id *id, | |
92 | unsigned int bcdDevice_initial, int bcdDevice_initial_digits, | |
93 | unsigned char range_lo, unsigned char range_hi, | |
94 | struct module *mod) | |
1da177e4 | 95 | { |
b19dcd93 | 96 | char alias[500]; |
1da177e4 LT |
97 | strcpy(alias, "usb:"); |
98 | ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR, | |
99 | id->idVendor); | |
100 | ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT, | |
101 | id->idProduct); | |
b19dcd93 RK |
102 | |
103 | strcat(alias, "d"); | |
104 | if (bcdDevice_initial_digits) | |
105 | sprintf(alias + strlen(alias), "%0*X", | |
106 | bcdDevice_initial_digits, bcdDevice_initial); | |
107 | if (range_lo == range_hi) | |
108 | sprintf(alias + strlen(alias), "%u", range_lo); | |
109 | else if (range_lo > 0 || range_hi < 9) | |
110 | sprintf(alias + strlen(alias), "[%u-%u]", range_lo, range_hi); | |
111 | if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1)) | |
112 | strcat(alias, "*"); | |
113 | ||
1da177e4 LT |
114 | ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS, |
115 | id->bDeviceClass); | |
116 | ADD(alias, "dsc", | |
117 | id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS, | |
118 | id->bDeviceSubClass); | |
119 | ADD(alias, "dp", | |
120 | id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL, | |
121 | id->bDeviceProtocol); | |
122 | ADD(alias, "ic", | |
123 | id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS, | |
124 | id->bInterfaceClass); | |
125 | ADD(alias, "isc", | |
126 | id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS, | |
127 | id->bInterfaceSubClass); | |
128 | ADD(alias, "ip", | |
129 | id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL, | |
130 | id->bInterfaceProtocol); | |
b19dcd93 RK |
131 | |
132 | /* Always end in a wildcard, for future extension */ | |
133 | if (alias[strlen(alias)-1] != '*') | |
134 | strcat(alias, "*"); | |
135 | buf_printf(&mod->dev_table_buf, | |
136 | "MODULE_ALIAS(\"%s\");\n", alias); | |
137 | } | |
138 | ||
139 | static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod) | |
140 | { | |
141 | unsigned int devlo, devhi; | |
142 | unsigned char chi, clo; | |
143 | int ndigits; | |
144 | ||
145 | id->match_flags = TO_NATIVE(id->match_flags); | |
146 | id->idVendor = TO_NATIVE(id->idVendor); | |
147 | id->idProduct = TO_NATIVE(id->idProduct); | |
148 | ||
149 | devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ? | |
150 | TO_NATIVE(id->bcdDevice_lo) : 0x0U; | |
151 | devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ? | |
152 | TO_NATIVE(id->bcdDevice_hi) : ~0x0U; | |
153 | ||
154 | /* | |
155 | * Some modules (visor) have empty slots as placeholder for | |
156 | * run-time specification that results in catch-all alias | |
157 | */ | |
de6f92b9 | 158 | if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass)) |
b19dcd93 RK |
159 | return; |
160 | ||
161 | /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */ | |
162 | for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) { | |
163 | clo = devlo & 0xf; | |
164 | chi = devhi & 0xf; | |
165 | if (chi > 9) /* it's bcd not hex */ | |
166 | chi = 9; | |
167 | devlo >>= 4; | |
168 | devhi >>= 4; | |
169 | ||
170 | if (devlo == devhi || !ndigits) { | |
171 | do_usb_entry(id, devlo, ndigits, clo, chi, mod); | |
172 | break; | |
173 | } | |
174 | ||
175 | if (clo > 0) | |
176 | do_usb_entry(id, devlo++, ndigits, clo, 9, mod); | |
177 | ||
178 | if (chi < 9) | |
179 | do_usb_entry(id, devhi--, ndigits, 0, chi, mod); | |
180 | } | |
181 | } | |
182 | ||
183 | static void do_usb_table(void *symval, unsigned long size, | |
184 | struct module *mod) | |
185 | { | |
186 | unsigned int i; | |
187 | const unsigned long id_size = sizeof(struct usb_device_id); | |
188 | ||
e0049825 | 189 | device_id_check(mod->name, "usb", size, id_size, symval); |
fb33d816 | 190 | |
b19dcd93 RK |
191 | /* Leave last one: it's the terminator. */ |
192 | size -= id_size; | |
193 | ||
194 | for (i = 0; i < size; i += id_size) | |
195 | do_usb_entry_multi(symval + i, mod); | |
1da177e4 LT |
196 | } |
197 | ||
198 | /* Looks like: ieee1394:venNmoNspNverN */ | |
199 | static int do_ieee1394_entry(const char *filename, | |
200 | struct ieee1394_device_id *id, char *alias) | |
201 | { | |
202 | id->match_flags = TO_NATIVE(id->match_flags); | |
203 | id->vendor_id = TO_NATIVE(id->vendor_id); | |
204 | id->model_id = TO_NATIVE(id->model_id); | |
205 | id->specifier_id = TO_NATIVE(id->specifier_id); | |
206 | id->version = TO_NATIVE(id->version); | |
207 | ||
208 | strcpy(alias, "ieee1394:"); | |
209 | ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID, | |
210 | id->vendor_id); | |
211 | ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID, | |
212 | id->model_id); | |
213 | ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID, | |
214 | id->specifier_id); | |
215 | ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION, | |
216 | id->version); | |
217 | ||
218 | return 1; | |
219 | } | |
220 | ||
221 | /* Looks like: pci:vNdNsvNsdNbcNscNiN. */ | |
222 | static int do_pci_entry(const char *filename, | |
223 | struct pci_device_id *id, char *alias) | |
224 | { | |
225 | /* Class field can be divided into these three. */ | |
226 | unsigned char baseclass, subclass, interface, | |
227 | baseclass_mask, subclass_mask, interface_mask; | |
228 | ||
229 | id->vendor = TO_NATIVE(id->vendor); | |
230 | id->device = TO_NATIVE(id->device); | |
231 | id->subvendor = TO_NATIVE(id->subvendor); | |
232 | id->subdevice = TO_NATIVE(id->subdevice); | |
233 | id->class = TO_NATIVE(id->class); | |
234 | id->class_mask = TO_NATIVE(id->class_mask); | |
235 | ||
236 | strcpy(alias, "pci:"); | |
237 | ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor); | |
238 | ADD(alias, "d", id->device != PCI_ANY_ID, id->device); | |
239 | ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor); | |
240 | ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice); | |
241 | ||
242 | baseclass = (id->class) >> 16; | |
243 | baseclass_mask = (id->class_mask) >> 16; | |
244 | subclass = (id->class) >> 8; | |
245 | subclass_mask = (id->class_mask) >> 8; | |
246 | interface = id->class; | |
247 | interface_mask = id->class_mask; | |
248 | ||
249 | if ((baseclass_mask != 0 && baseclass_mask != 0xFF) | |
250 | || (subclass_mask != 0 && subclass_mask != 0xFF) | |
251 | || (interface_mask != 0 && interface_mask != 0xFF)) { | |
cb80514d SR |
252 | warn("Can't handle masks in %s:%04X\n", |
253 | filename, id->class_mask); | |
1da177e4 LT |
254 | return 0; |
255 | } | |
256 | ||
257 | ADD(alias, "bc", baseclass_mask == 0xFF, baseclass); | |
258 | ADD(alias, "sc", subclass_mask == 0xFF, subclass); | |
259 | ADD(alias, "i", interface_mask == 0xFF, interface); | |
260 | return 1; | |
261 | } | |
262 | ||
62070fa4 | 263 | /* looks like: "ccw:tNmNdtNdmN" */ |
1da177e4 LT |
264 | static int do_ccw_entry(const char *filename, |
265 | struct ccw_device_id *id, char *alias) | |
266 | { | |
267 | id->match_flags = TO_NATIVE(id->match_flags); | |
268 | id->cu_type = TO_NATIVE(id->cu_type); | |
269 | id->cu_model = TO_NATIVE(id->cu_model); | |
270 | id->dev_type = TO_NATIVE(id->dev_type); | |
271 | id->dev_model = TO_NATIVE(id->dev_model); | |
272 | ||
273 | strcpy(alias, "ccw:"); | |
274 | ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE, | |
275 | id->cu_type); | |
276 | ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL, | |
277 | id->cu_model); | |
278 | ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE, | |
279 | id->dev_type); | |
de1d9c03 | 280 | ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL, |
1da177e4 LT |
281 | id->dev_model); |
282 | return 1; | |
283 | } | |
284 | ||
1534c382 MS |
285 | /* looks like: "ap:tN" */ |
286 | static int do_ap_entry(const char *filename, | |
287 | struct ap_device_id *id, char *alias) | |
288 | { | |
289 | sprintf(alias, "ap:t%02X", id->dev_type); | |
290 | return 1; | |
291 | } | |
292 | ||
1da177e4 LT |
293 | /* Looks like: "serio:tyNprNidNexN" */ |
294 | static int do_serio_entry(const char *filename, | |
295 | struct serio_device_id *id, char *alias) | |
296 | { | |
297 | id->type = TO_NATIVE(id->type); | |
298 | id->proto = TO_NATIVE(id->proto); | |
299 | id->id = TO_NATIVE(id->id); | |
300 | id->extra = TO_NATIVE(id->extra); | |
301 | ||
302 | strcpy(alias, "serio:"); | |
303 | ADD(alias, "ty", id->type != SERIO_ANY, id->type); | |
304 | ADD(alias, "pr", id->proto != SERIO_ANY, id->proto); | |
305 | ADD(alias, "id", id->id != SERIO_ANY, id->id); | |
306 | ADD(alias, "ex", id->extra != SERIO_ANY, id->extra); | |
307 | ||
308 | return 1; | |
309 | } | |
310 | ||
29b71a1c TR |
311 | /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */ |
312 | static int do_acpi_entry(const char *filename, | |
313 | struct acpi_device_id *id, char *alias) | |
314 | { | |
315 | sprintf(alias, "acpi*:%s:", id->id); | |
316 | return 1; | |
317 | } | |
318 | ||
1da177e4 LT |
319 | /* looks like: "pnp:dD" */ |
320 | static int do_pnp_entry(const char *filename, | |
321 | struct pnp_device_id *id, char *alias) | |
322 | { | |
323 | sprintf(alias, "pnp:d%s", id->id); | |
324 | return 1; | |
325 | } | |
326 | ||
327 | /* looks like: "pnp:cCdD..." */ | |
328 | static int do_pnp_card_entry(const char *filename, | |
329 | struct pnp_card_device_id *id, char *alias) | |
330 | { | |
331 | int i; | |
332 | ||
333 | sprintf(alias, "pnp:c%s", id->id); | |
334 | for (i = 0; i < PNP_MAX_DEVICES; i++) { | |
335 | if (! *id->devs[i].id) | |
336 | break; | |
337 | sprintf(alias + strlen(alias), "d%s", id->devs[i].id); | |
338 | } | |
339 | return 1; | |
340 | } | |
341 | ||
90829cfe DB |
342 | /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */ |
343 | static int do_pcmcia_entry(const char *filename, | |
344 | struct pcmcia_device_id *id, char *alias) | |
345 | { | |
346 | unsigned int i; | |
347 | ||
4fb7edce | 348 | id->match_flags = TO_NATIVE(id->match_flags); |
90829cfe DB |
349 | id->manf_id = TO_NATIVE(id->manf_id); |
350 | id->card_id = TO_NATIVE(id->card_id); | |
351 | id->func_id = TO_NATIVE(id->func_id); | |
352 | id->function = TO_NATIVE(id->function); | |
353 | id->device_no = TO_NATIVE(id->device_no); | |
4fb7edce | 354 | |
90829cfe DB |
355 | for (i=0; i<4; i++) { |
356 | id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]); | |
357 | } | |
358 | ||
359 | strcpy(alias, "pcmcia:"); | |
360 | ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID, | |
361 | id->manf_id); | |
362 | ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID, | |
363 | id->card_id); | |
364 | ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID, | |
365 | id->func_id); | |
366 | ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION, | |
367 | id->function); | |
368 | ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO, | |
369 | id->device_no); | |
370 | ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]); | |
371 | ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]); | |
372 | ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]); | |
373 | ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]); | |
374 | ||
375 | return 1; | |
376 | } | |
377 | ||
378 | ||
379 | ||
5e655772 JM |
380 | static int do_of_entry (const char *filename, struct of_device_id *of, char *alias) |
381 | { | |
d1ab4235 | 382 | int len; |
5e655772 | 383 | char *tmp; |
d1ab4235 | 384 | len = sprintf (alias, "of:N%sT%s", |
5e655772 | 385 | of->name[0] ? of->name : "*", |
d1ab4235 SM |
386 | of->type[0] ? of->type : "*"); |
387 | ||
388 | if (of->compatible[0]) | |
389 | sprintf (&alias[len], "%sC%s", | |
390 | of->type[0] ? "*" : "", | |
391 | of->compatible); | |
5e655772 JM |
392 | |
393 | /* Replace all whitespace with underscores */ | |
394 | for (tmp = alias; tmp && *tmp; tmp++) | |
395 | if (isspace (*tmp)) | |
396 | *tmp = '_'; | |
397 | ||
398 | return 1; | |
399 | } | |
400 | ||
fb120da6 SR |
401 | static int do_vio_entry(const char *filename, struct vio_device_id *vio, |
402 | char *alias) | |
403 | { | |
404 | char *tmp; | |
405 | ||
406 | sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*", | |
407 | vio->compat[0] ? vio->compat : "*"); | |
408 | ||
409 | /* Replace all whitespace with underscores */ | |
410 | for (tmp = alias; tmp && *tmp; tmp++) | |
411 | if (isspace (*tmp)) | |
412 | *tmp = '_'; | |
413 | ||
414 | return 1; | |
415 | } | |
416 | ||
1d8f430c RR |
417 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
418 | ||
419 | static void do_input(char *alias, | |
420 | kernel_ulong_t *arr, unsigned int min, unsigned int max) | |
421 | { | |
422 | unsigned int i; | |
ddc5d341 DT |
423 | |
424 | for (i = min; i < max; i++) | |
e0e92632 | 425 | if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG))) |
ddc5d341 | 426 | sprintf(alias + strlen(alias), "%X,*", i); |
1d8f430c RR |
427 | } |
428 | ||
429 | /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */ | |
430 | static int do_input_entry(const char *filename, struct input_device_id *id, | |
431 | char *alias) | |
432 | { | |
433 | sprintf(alias, "input:"); | |
434 | ||
ddc5d341 DT |
435 | ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype); |
436 | ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor); | |
437 | ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product); | |
438 | ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version); | |
1d8f430c RR |
439 | |
440 | sprintf(alias + strlen(alias), "-e*"); | |
ddc5d341 | 441 | if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT) |
dc24f0e7 | 442 | do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX); |
1d8f430c | 443 | sprintf(alias + strlen(alias), "k*"); |
ddc5d341 | 444 | if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT) |
dc24f0e7 SR |
445 | do_input(alias, id->keybit, |
446 | INPUT_DEVICE_ID_KEY_MIN_INTERESTING, | |
447 | INPUT_DEVICE_ID_KEY_MAX); | |
1d8f430c | 448 | sprintf(alias + strlen(alias), "r*"); |
ddc5d341 | 449 | if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT) |
dc24f0e7 | 450 | do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX); |
1d8f430c | 451 | sprintf(alias + strlen(alias), "a*"); |
ddc5d341 | 452 | if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT) |
dc24f0e7 | 453 | do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX); |
1d8f430c | 454 | sprintf(alias + strlen(alias), "m*"); |
ddc5d341 | 455 | if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT) |
dc24f0e7 | 456 | do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX); |
1d8f430c | 457 | sprintf(alias + strlen(alias), "l*"); |
ddc5d341 | 458 | if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT) |
dc24f0e7 | 459 | do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX); |
1d8f430c | 460 | sprintf(alias + strlen(alias), "s*"); |
ddc5d341 | 461 | if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT) |
dc24f0e7 | 462 | do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX); |
1d8f430c | 463 | sprintf(alias + strlen(alias), "f*"); |
ddc5d341 | 464 | if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT) |
dc24f0e7 | 465 | do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX); |
1d8f430c | 466 | sprintf(alias + strlen(alias), "w*"); |
ddc5d341 | 467 | if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT) |
dc24f0e7 | 468 | do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX); |
1d8f430c RR |
469 | return 1; |
470 | } | |
471 | ||
07563c71 MT |
472 | static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa, |
473 | char *alias) | |
474 | { | |
475 | if (eisa->sig[0]) | |
476 | sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig); | |
477 | return 1; | |
478 | } | |
479 | ||
f3cf2673 KM |
480 | /* Looks like: parisc:tNhvNrevNsvN */ |
481 | static int do_parisc_entry(const char *filename, struct parisc_device_id *id, | |
482 | char *alias) | |
483 | { | |
484 | id->hw_type = TO_NATIVE(id->hw_type); | |
485 | id->hversion = TO_NATIVE(id->hversion); | |
486 | id->hversion_rev = TO_NATIVE(id->hversion_rev); | |
487 | id->sversion = TO_NATIVE(id->sversion); | |
488 | ||
489 | strcpy(alias, "parisc:"); | |
f354ef8a KM |
490 | ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type); |
491 | ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion); | |
492 | ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev); | |
493 | ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion); | |
f3cf2673 KM |
494 | |
495 | return 1; | |
496 | } | |
497 | ||
d59b66c7 PO |
498 | /* Looks like: sdio:cNvNdN. */ |
499 | static int do_sdio_entry(const char *filename, | |
500 | struct sdio_device_id *id, char *alias) | |
501 | { | |
502 | id->class = TO_NATIVE(id->class); | |
503 | id->vendor = TO_NATIVE(id->vendor); | |
504 | id->device = TO_NATIVE(id->device); | |
505 | ||
506 | strcpy(alias, "sdio:"); | |
507 | ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class); | |
508 | ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor); | |
509 | ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device); | |
038a5008 LT |
510 | return 1; |
511 | } | |
512 | ||
61e115a5 MB |
513 | /* Looks like: ssb:vNidNrevN. */ |
514 | static int do_ssb_entry(const char *filename, | |
515 | struct ssb_device_id *id, char *alias) | |
516 | { | |
517 | id->vendor = TO_NATIVE(id->vendor); | |
518 | id->coreid = TO_NATIVE(id->coreid); | |
519 | id->revision = TO_NATIVE(id->revision); | |
d59b66c7 | 520 | |
61e115a5 MB |
521 | strcpy(alias, "ssb:"); |
522 | ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor); | |
523 | ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid); | |
524 | ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision); | |
d59b66c7 PO |
525 | return 1; |
526 | } | |
527 | ||
b01d9f28 RR |
528 | /* Looks like: virtio:dNvN */ |
529 | static int do_virtio_entry(const char *filename, struct virtio_device_id *id, | |
530 | char *alias) | |
531 | { | |
532 | id->device = TO_NATIVE(id->device); | |
533 | id->vendor = TO_NATIVE(id->vendor); | |
534 | ||
535 | strcpy(alias, "virtio:"); | |
536 | ADD(alias, "d", 1, id->device); | |
537 | ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor); | |
538 | ||
539 | return 1; | |
540 | } | |
541 | ||
1da177e4 LT |
542 | /* Ignore any prefix, eg. v850 prepends _ */ |
543 | static inline int sym_is(const char *symbol, const char *name) | |
544 | { | |
545 | const char *match; | |
546 | ||
547 | match = strstr(symbol, name); | |
548 | if (!match) | |
549 | return 0; | |
550 | return match[strlen(symbol)] == '\0'; | |
551 | } | |
552 | ||
553 | static void do_table(void *symval, unsigned long size, | |
554 | unsigned long id_size, | |
fb33d816 | 555 | const char *device_id, |
1da177e4 LT |
556 | void *function, |
557 | struct module *mod) | |
558 | { | |
559 | unsigned int i; | |
560 | char alias[500]; | |
561 | int (*do_entry)(const char *, void *entry, char *alias) = function; | |
562 | ||
e0049825 | 563 | device_id_check(mod->name, device_id, size, id_size, symval); |
1da177e4 LT |
564 | /* Leave last one: it's the terminator. */ |
565 | size -= id_size; | |
566 | ||
567 | for (i = 0; i < size; i += id_size) { | |
568 | if (do_entry(mod->name, symval+i, alias)) { | |
569 | /* Always end in a wildcard, for future extension */ | |
570 | if (alias[strlen(alias)-1] != '*') | |
571 | strcat(alias, "*"); | |
572 | buf_printf(&mod->dev_table_buf, | |
573 | "MODULE_ALIAS(\"%s\");\n", alias); | |
574 | } | |
575 | } | |
576 | } | |
577 | ||
578 | /* Create MODULE_ALIAS() statements. | |
579 | * At this time, we cannot write the actual output C source yet, | |
580 | * so we write into the mod->dev_table_buf buffer. */ | |
581 | void handle_moddevtable(struct module *mod, struct elf_info *info, | |
582 | Elf_Sym *sym, const char *symname) | |
583 | { | |
584 | void *symval; | |
e0049825 | 585 | char *zeros = NULL; |
1da177e4 LT |
586 | |
587 | /* We're looking for a section relative symbol */ | |
588 | if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum) | |
589 | return; | |
590 | ||
e0049825 KC |
591 | /* Handle all-NULL symbols allocated into .bss */ |
592 | if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) { | |
593 | zeros = calloc(1, sym->st_size); | |
594 | symval = zeros; | |
595 | } else { | |
596 | symval = (void *)info->hdr | |
597 | + info->sechdrs[sym->st_shndx].sh_offset | |
598 | + sym->st_value; | |
599 | } | |
1da177e4 LT |
600 | |
601 | if (sym_is(symname, "__mod_pci_device_table")) | |
fb33d816 SR |
602 | do_table(symval, sym->st_size, |
603 | sizeof(struct pci_device_id), "pci", | |
1da177e4 LT |
604 | do_pci_entry, mod); |
605 | else if (sym_is(symname, "__mod_usb_device_table")) | |
b19dcd93 RK |
606 | /* special case to handle bcdDevice ranges */ |
607 | do_usb_table(symval, sym->st_size, mod); | |
1da177e4 | 608 | else if (sym_is(symname, "__mod_ieee1394_device_table")) |
fb33d816 SR |
609 | do_table(symval, sym->st_size, |
610 | sizeof(struct ieee1394_device_id), "ieee1394", | |
1da177e4 LT |
611 | do_ieee1394_entry, mod); |
612 | else if (sym_is(symname, "__mod_ccw_device_table")) | |
fb33d816 SR |
613 | do_table(symval, sym->st_size, |
614 | sizeof(struct ccw_device_id), "ccw", | |
1da177e4 | 615 | do_ccw_entry, mod); |
1534c382 MS |
616 | else if (sym_is(symname, "__mod_ap_device_table")) |
617 | do_table(symval, sym->st_size, | |
618 | sizeof(struct ap_device_id), "ap", | |
619 | do_ap_entry, mod); | |
1da177e4 | 620 | else if (sym_is(symname, "__mod_serio_device_table")) |
fb33d816 SR |
621 | do_table(symval, sym->st_size, |
622 | sizeof(struct serio_device_id), "serio", | |
1da177e4 | 623 | do_serio_entry, mod); |
29b71a1c TR |
624 | else if (sym_is(symname, "__mod_acpi_device_table")) |
625 | do_table(symval, sym->st_size, | |
626 | sizeof(struct acpi_device_id), "acpi", | |
627 | do_acpi_entry, mod); | |
1da177e4 | 628 | else if (sym_is(symname, "__mod_pnp_device_table")) |
fb33d816 SR |
629 | do_table(symval, sym->st_size, |
630 | sizeof(struct pnp_device_id), "pnp", | |
1da177e4 LT |
631 | do_pnp_entry, mod); |
632 | else if (sym_is(symname, "__mod_pnp_card_device_table")) | |
fb33d816 SR |
633 | do_table(symval, sym->st_size, |
634 | sizeof(struct pnp_card_device_id), "pnp_card", | |
1da177e4 | 635 | do_pnp_card_entry, mod); |
90829cfe | 636 | else if (sym_is(symname, "__mod_pcmcia_device_table")) |
fb33d816 SR |
637 | do_table(symval, sym->st_size, |
638 | sizeof(struct pcmcia_device_id), "pcmcia", | |
90829cfe | 639 | do_pcmcia_entry, mod); |
5e655772 | 640 | else if (sym_is(symname, "__mod_of_device_table")) |
fb33d816 SR |
641 | do_table(symval, sym->st_size, |
642 | sizeof(struct of_device_id), "of", | |
5e655772 | 643 | do_of_entry, mod); |
fb120da6 | 644 | else if (sym_is(symname, "__mod_vio_device_table")) |
fb33d816 SR |
645 | do_table(symval, sym->st_size, |
646 | sizeof(struct vio_device_id), "vio", | |
fb120da6 | 647 | do_vio_entry, mod); |
1d8f430c | 648 | else if (sym_is(symname, "__mod_input_device_table")) |
fb33d816 SR |
649 | do_table(symval, sym->st_size, |
650 | sizeof(struct input_device_id), "input", | |
1d8f430c | 651 | do_input_entry, mod); |
07563c71 MT |
652 | else if (sym_is(symname, "__mod_eisa_device_table")) |
653 | do_table(symval, sym->st_size, | |
654 | sizeof(struct eisa_device_id), "eisa", | |
655 | do_eisa_entry, mod); | |
f3cf2673 KM |
656 | else if (sym_is(symname, "__mod_parisc_device_table")) |
657 | do_table(symval, sym->st_size, | |
658 | sizeof(struct parisc_device_id), "parisc", | |
659 | do_parisc_entry, mod); | |
d59b66c7 PO |
660 | else if (sym_is(symname, "__mod_sdio_device_table")) |
661 | do_table(symval, sym->st_size, | |
662 | sizeof(struct sdio_device_id), "sdio", | |
663 | do_sdio_entry, mod); | |
61e115a5 MB |
664 | else if (sym_is(symname, "__mod_ssb_device_table")) |
665 | do_table(symval, sym->st_size, | |
666 | sizeof(struct ssb_device_id), "ssb", | |
667 | do_ssb_entry, mod); | |
b01d9f28 RR |
668 | else if (sym_is(symname, "__mod_virtio_device_table")) |
669 | do_table(symval, sym->st_size, | |
670 | sizeof(struct virtio_device_id), "virtio", | |
671 | do_virtio_entry, mod); | |
e0049825 | 672 | free(zeros); |
1da177e4 LT |
673 | } |
674 | ||
675 | /* Now add out buffered information to the generated C source */ | |
676 | void add_moddevtable(struct buffer *buf, struct module *mod) | |
677 | { | |
678 | buf_printf(buf, "\n"); | |
679 | buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos); | |
680 | free(mod->dev_table_buf.p); | |
681 | } |