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 | 30 | #include <ctype.h> |
626596e2 | 31 | #include <stdbool.h> |
5e655772 | 32 | |
1da177e4 LT |
33 | typedef uint32_t __u32; |
34 | typedef uint16_t __u16; | |
35 | typedef unsigned char __u8; | |
36 | ||
37 | /* Big exception to the "don't include kernel headers into userspace, which | |
62070fa4 | 38 | * even potentially has different endianness and word sizes, since |
1da177e4 LT |
39 | * we handle those differences explicitly below */ |
40 | #include "../../include/linux/mod_devicetable.h" | |
41 | ||
42 | #define ADD(str, sep, cond, field) \ | |
43 | do { \ | |
44 | strcat(str, sep); \ | |
45 | if (cond) \ | |
46 | sprintf(str + strlen(str), \ | |
47 | sizeof(field) == 1 ? "%02X" : \ | |
48 | sizeof(field) == 2 ? "%04X" : \ | |
49 | sizeof(field) == 4 ? "%08X" : "", \ | |
50 | field); \ | |
51 | else \ | |
52 | sprintf(str + strlen(str), "*"); \ | |
53 | } while(0) | |
54 | ||
ac551828 JD |
55 | /* Always end in a wildcard, for future extension */ |
56 | static inline void add_wildcard(char *str) | |
57 | { | |
58 | int len = strlen(str); | |
59 | ||
60 | if (str[len - 1] != '*') | |
61 | strcat(str + len, "*"); | |
62 | } | |
63 | ||
4ce6efed | 64 | unsigned int cross_build = 0; |
fb33d816 SR |
65 | /** |
66 | * Check that sizeof(device_id type) are consistent with size of section | |
67 | * in .o file. If in-consistent then userspace and kernel does not agree | |
68 | * on actual size which is a bug. | |
e0049825 | 69 | * Also verify that the final entry in the table is all zeros. |
4ce6efed | 70 | * Ignore both checks if build host differ from target host and size differs. |
fb33d816 | 71 | **/ |
e0049825 KC |
72 | static void device_id_check(const char *modname, const char *device_id, |
73 | unsigned long size, unsigned long id_size, | |
74 | void *symval) | |
fb33d816 | 75 | { |
e0049825 KC |
76 | int i; |
77 | ||
fb33d816 | 78 | if (size % id_size || size < id_size) { |
4ce6efed SR |
79 | if (cross_build != 0) |
80 | return; | |
fb33d816 SR |
81 | fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo " |
82 | "of the size of section __mod_%s_device_table=%lu.\n" | |
83 | "Fix definition of struct %s_device_id " | |
84 | "in mod_devicetable.h\n", | |
85 | modname, device_id, id_size, device_id, size, device_id); | |
86 | } | |
e0049825 KC |
87 | /* Verify last one is a terminator */ |
88 | for (i = 0; i < id_size; i++ ) { | |
89 | if (*(uint8_t*)(symval+size-id_size+i)) { | |
90 | fprintf(stderr,"%s: struct %s_device_id is %lu bytes. " | |
91 | "The last of %lu is:\n", | |
92 | modname, device_id, id_size, size / id_size); | |
93 | for (i = 0; i < id_size; i++ ) | |
94 | fprintf(stderr,"0x%02x ", | |
95 | *(uint8_t*)(symval+size-id_size+i) ); | |
96 | fprintf(stderr,"\n"); | |
97 | fatal("%s: struct %s_device_id is not terminated " | |
98 | "with a NULL entry!\n", modname, device_id); | |
99 | } | |
100 | } | |
fb33d816 SR |
101 | } |
102 | ||
b19dcd93 RK |
103 | /* USB is special because the bcdDevice can be matched against a numeric range */ |
104 | /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */ | |
105 | static void do_usb_entry(struct usb_device_id *id, | |
106 | unsigned int bcdDevice_initial, int bcdDevice_initial_digits, | |
107 | unsigned char range_lo, unsigned char range_hi, | |
afe2dab4 | 108 | unsigned char max, struct module *mod) |
1da177e4 | 109 | { |
b19dcd93 | 110 | char alias[500]; |
1da177e4 LT |
111 | strcpy(alias, "usb:"); |
112 | ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR, | |
113 | id->idVendor); | |
114 | ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT, | |
115 | id->idProduct); | |
b19dcd93 RK |
116 | |
117 | strcat(alias, "d"); | |
118 | if (bcdDevice_initial_digits) | |
119 | sprintf(alias + strlen(alias), "%0*X", | |
120 | bcdDevice_initial_digits, bcdDevice_initial); | |
121 | if (range_lo == range_hi) | |
afe2dab4 NM |
122 | sprintf(alias + strlen(alias), "%X", range_lo); |
123 | else if (range_lo > 0 || range_hi < max) { | |
124 | if (range_lo > 0x9 || range_hi < 0xA) | |
125 | sprintf(alias + strlen(alias), | |
126 | "[%X-%X]", | |
127 | range_lo, | |
128 | range_hi); | |
129 | else { | |
130 | sprintf(alias + strlen(alias), | |
131 | range_lo < 0x9 ? "[%X-9" : "[%X", | |
132 | range_lo); | |
133 | sprintf(alias + strlen(alias), | |
134 | range_hi > 0xA ? "a-%X]" : "%X]", | |
135 | range_lo); | |
136 | } | |
137 | } | |
b19dcd93 RK |
138 | if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1)) |
139 | strcat(alias, "*"); | |
140 | ||
1da177e4 LT |
141 | ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS, |
142 | id->bDeviceClass); | |
143 | ADD(alias, "dsc", | |
144 | id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS, | |
145 | id->bDeviceSubClass); | |
146 | ADD(alias, "dp", | |
147 | id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL, | |
148 | id->bDeviceProtocol); | |
149 | ADD(alias, "ic", | |
150 | id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS, | |
151 | id->bInterfaceClass); | |
152 | ADD(alias, "isc", | |
153 | id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS, | |
154 | id->bInterfaceSubClass); | |
155 | ADD(alias, "ip", | |
156 | id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL, | |
157 | id->bInterfaceProtocol); | |
b19dcd93 | 158 | |
ac551828 | 159 | add_wildcard(alias); |
b19dcd93 RK |
160 | buf_printf(&mod->dev_table_buf, |
161 | "MODULE_ALIAS(\"%s\");\n", alias); | |
162 | } | |
163 | ||
55f49f26 NM |
164 | /* Handles increment/decrement of BCD formatted integers */ |
165 | /* Returns the previous value, so it works like i++ or i-- */ | |
166 | static unsigned int incbcd(unsigned int *bcd, | |
167 | int inc, | |
168 | unsigned char max, | |
169 | size_t chars) | |
170 | { | |
171 | unsigned int init = *bcd, i, j; | |
172 | unsigned long long c, dec = 0; | |
173 | ||
174 | /* If bcd is not in BCD format, just increment */ | |
175 | if (max > 0x9) { | |
176 | *bcd += inc; | |
177 | return init; | |
178 | } | |
179 | ||
180 | /* Convert BCD to Decimal */ | |
181 | for (i=0 ; i < chars ; i++) { | |
182 | c = (*bcd >> (i << 2)) & 0xf; | |
183 | c = c > 9 ? 9 : c; /* force to bcd just in case */ | |
184 | for (j=0 ; j < i ; j++) | |
185 | c = c * 10; | |
186 | dec += c; | |
187 | } | |
188 | ||
189 | /* Do our increment/decrement */ | |
190 | dec += inc; | |
191 | *bcd = 0; | |
192 | ||
193 | /* Convert back to BCD */ | |
194 | for (i=0 ; i < chars ; i++) { | |
195 | for (c=1,j=0 ; j < i ; j++) | |
196 | c = c * 10; | |
197 | c = (dec / c) % 10; | |
198 | *bcd += c << (i << 2); | |
199 | } | |
200 | return init; | |
201 | } | |
202 | ||
b19dcd93 RK |
203 | static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod) |
204 | { | |
205 | unsigned int devlo, devhi; | |
afe2dab4 | 206 | unsigned char chi, clo, max; |
b19dcd93 RK |
207 | int ndigits; |
208 | ||
209 | id->match_flags = TO_NATIVE(id->match_flags); | |
210 | id->idVendor = TO_NATIVE(id->idVendor); | |
211 | id->idProduct = TO_NATIVE(id->idProduct); | |
212 | ||
213 | devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ? | |
214 | TO_NATIVE(id->bcdDevice_lo) : 0x0U; | |
215 | devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ? | |
216 | TO_NATIVE(id->bcdDevice_hi) : ~0x0U; | |
217 | ||
afe2dab4 NM |
218 | /* Figure out if this entry is in bcd or hex format */ |
219 | max = 0x9; /* Default to decimal format */ | |
220 | for (ndigits = 0 ; ndigits < sizeof(id->bcdDevice_lo) * 2 ; ndigits++) { | |
221 | clo = (devlo >> (ndigits << 2)) & 0xf; | |
222 | chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf; | |
223 | if (clo > max || chi > max) { | |
224 | max = 0xf; | |
225 | break; | |
226 | } | |
227 | } | |
228 | ||
b19dcd93 RK |
229 | /* |
230 | * Some modules (visor) have empty slots as placeholder for | |
231 | * run-time specification that results in catch-all alias | |
232 | */ | |
de6f92b9 | 233 | if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass)) |
b19dcd93 RK |
234 | return; |
235 | ||
236 | /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */ | |
237 | for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) { | |
238 | clo = devlo & 0xf; | |
239 | chi = devhi & 0xf; | |
afe2dab4 NM |
240 | if (chi > max) /* If we are in bcd mode, truncate if necessary */ |
241 | chi = max; | |
b19dcd93 RK |
242 | devlo >>= 4; |
243 | devhi >>= 4; | |
244 | ||
245 | if (devlo == devhi || !ndigits) { | |
afe2dab4 | 246 | do_usb_entry(id, devlo, ndigits, clo, chi, max, mod); |
b19dcd93 RK |
247 | break; |
248 | } | |
249 | ||
afe2dab4 | 250 | if (clo > 0x0) |
55f49f26 NM |
251 | do_usb_entry(id, |
252 | incbcd(&devlo, 1, max, | |
253 | sizeof(id->bcdDevice_lo) * 2), | |
254 | ndigits, clo, max, max, mod); | |
b19dcd93 | 255 | |
afe2dab4 | 256 | if (chi < max) |
55f49f26 NM |
257 | do_usb_entry(id, |
258 | incbcd(&devhi, -1, max, | |
259 | sizeof(id->bcdDevice_lo) * 2), | |
260 | ndigits, 0x0, chi, max, mod); | |
b19dcd93 RK |
261 | } |
262 | } | |
263 | ||
264 | static void do_usb_table(void *symval, unsigned long size, | |
265 | struct module *mod) | |
266 | { | |
267 | unsigned int i; | |
268 | const unsigned long id_size = sizeof(struct usb_device_id); | |
269 | ||
e0049825 | 270 | device_id_check(mod->name, "usb", size, id_size, symval); |
fb33d816 | 271 | |
b19dcd93 RK |
272 | /* Leave last one: it's the terminator. */ |
273 | size -= id_size; | |
274 | ||
275 | for (i = 0; i < size; i += id_size) | |
276 | do_usb_entry_multi(symval + i, mod); | |
1da177e4 LT |
277 | } |
278 | ||
e8c84f9a JS |
279 | /* Looks like: hid:bNvNpN */ |
280 | static int do_hid_entry(const char *filename, | |
281 | struct hid_device_id *id, char *alias) | |
282 | { | |
2b639386 | 283 | id->bus = TO_NATIVE(id->bus); |
e8c84f9a JS |
284 | id->vendor = TO_NATIVE(id->vendor); |
285 | id->product = TO_NATIVE(id->product); | |
286 | ||
287 | sprintf(alias, "hid:b%04X", id->bus); | |
288 | ADD(alias, "v", id->vendor != HID_ANY_ID, id->vendor); | |
289 | ADD(alias, "p", id->product != HID_ANY_ID, id->product); | |
290 | ||
291 | return 1; | |
292 | } | |
293 | ||
1da177e4 LT |
294 | /* Looks like: ieee1394:venNmoNspNverN */ |
295 | static int do_ieee1394_entry(const char *filename, | |
296 | struct ieee1394_device_id *id, char *alias) | |
297 | { | |
298 | id->match_flags = TO_NATIVE(id->match_flags); | |
299 | id->vendor_id = TO_NATIVE(id->vendor_id); | |
300 | id->model_id = TO_NATIVE(id->model_id); | |
301 | id->specifier_id = TO_NATIVE(id->specifier_id); | |
302 | id->version = TO_NATIVE(id->version); | |
303 | ||
304 | strcpy(alias, "ieee1394:"); | |
305 | ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID, | |
306 | id->vendor_id); | |
307 | ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID, | |
308 | id->model_id); | |
309 | ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID, | |
310 | id->specifier_id); | |
311 | ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION, | |
312 | id->version); | |
313 | ||
ac551828 | 314 | add_wildcard(alias); |
1da177e4 LT |
315 | return 1; |
316 | } | |
317 | ||
318 | /* Looks like: pci:vNdNsvNsdNbcNscNiN. */ | |
319 | static int do_pci_entry(const char *filename, | |
320 | struct pci_device_id *id, char *alias) | |
321 | { | |
322 | /* Class field can be divided into these three. */ | |
323 | unsigned char baseclass, subclass, interface, | |
324 | baseclass_mask, subclass_mask, interface_mask; | |
325 | ||
326 | id->vendor = TO_NATIVE(id->vendor); | |
327 | id->device = TO_NATIVE(id->device); | |
328 | id->subvendor = TO_NATIVE(id->subvendor); | |
329 | id->subdevice = TO_NATIVE(id->subdevice); | |
330 | id->class = TO_NATIVE(id->class); | |
331 | id->class_mask = TO_NATIVE(id->class_mask); | |
332 | ||
333 | strcpy(alias, "pci:"); | |
334 | ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor); | |
335 | ADD(alias, "d", id->device != PCI_ANY_ID, id->device); | |
336 | ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor); | |
337 | ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice); | |
338 | ||
339 | baseclass = (id->class) >> 16; | |
340 | baseclass_mask = (id->class_mask) >> 16; | |
341 | subclass = (id->class) >> 8; | |
342 | subclass_mask = (id->class_mask) >> 8; | |
343 | interface = id->class; | |
344 | interface_mask = id->class_mask; | |
345 | ||
346 | if ((baseclass_mask != 0 && baseclass_mask != 0xFF) | |
347 | || (subclass_mask != 0 && subclass_mask != 0xFF) | |
348 | || (interface_mask != 0 && interface_mask != 0xFF)) { | |
cb80514d SR |
349 | warn("Can't handle masks in %s:%04X\n", |
350 | filename, id->class_mask); | |
1da177e4 LT |
351 | return 0; |
352 | } | |
353 | ||
354 | ADD(alias, "bc", baseclass_mask == 0xFF, baseclass); | |
355 | ADD(alias, "sc", subclass_mask == 0xFF, subclass); | |
356 | ADD(alias, "i", interface_mask == 0xFF, interface); | |
ac551828 | 357 | add_wildcard(alias); |
1da177e4 LT |
358 | return 1; |
359 | } | |
360 | ||
62070fa4 | 361 | /* looks like: "ccw:tNmNdtNdmN" */ |
1da177e4 LT |
362 | static int do_ccw_entry(const char *filename, |
363 | struct ccw_device_id *id, char *alias) | |
364 | { | |
365 | id->match_flags = TO_NATIVE(id->match_flags); | |
366 | id->cu_type = TO_NATIVE(id->cu_type); | |
367 | id->cu_model = TO_NATIVE(id->cu_model); | |
368 | id->dev_type = TO_NATIVE(id->dev_type); | |
369 | id->dev_model = TO_NATIVE(id->dev_model); | |
370 | ||
371 | strcpy(alias, "ccw:"); | |
372 | ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE, | |
373 | id->cu_type); | |
374 | ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL, | |
375 | id->cu_model); | |
376 | ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE, | |
377 | id->dev_type); | |
de1d9c03 | 378 | ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL, |
1da177e4 | 379 | id->dev_model); |
ac551828 | 380 | add_wildcard(alias); |
1da177e4 LT |
381 | return 1; |
382 | } | |
383 | ||
1534c382 MS |
384 | /* looks like: "ap:tN" */ |
385 | static int do_ap_entry(const char *filename, | |
386 | struct ap_device_id *id, char *alias) | |
387 | { | |
ac551828 | 388 | sprintf(alias, "ap:t%02X*", id->dev_type); |
1534c382 MS |
389 | return 1; |
390 | } | |
391 | ||
7e9db9ea CH |
392 | /* looks like: "css:tN" */ |
393 | static int do_css_entry(const char *filename, | |
394 | struct css_device_id *id, char *alias) | |
395 | { | |
396 | sprintf(alias, "css:t%01X", id->type); | |
397 | return 1; | |
398 | } | |
399 | ||
1da177e4 LT |
400 | /* Looks like: "serio:tyNprNidNexN" */ |
401 | static int do_serio_entry(const char *filename, | |
402 | struct serio_device_id *id, char *alias) | |
403 | { | |
404 | id->type = TO_NATIVE(id->type); | |
405 | id->proto = TO_NATIVE(id->proto); | |
406 | id->id = TO_NATIVE(id->id); | |
407 | id->extra = TO_NATIVE(id->extra); | |
408 | ||
409 | strcpy(alias, "serio:"); | |
410 | ADD(alias, "ty", id->type != SERIO_ANY, id->type); | |
411 | ADD(alias, "pr", id->proto != SERIO_ANY, id->proto); | |
412 | ADD(alias, "id", id->id != SERIO_ANY, id->id); | |
413 | ADD(alias, "ex", id->extra != SERIO_ANY, id->extra); | |
414 | ||
ac551828 | 415 | add_wildcard(alias); |
1da177e4 LT |
416 | return 1; |
417 | } | |
418 | ||
29b71a1c TR |
419 | /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */ |
420 | static int do_acpi_entry(const char *filename, | |
421 | struct acpi_device_id *id, char *alias) | |
422 | { | |
ac551828 | 423 | sprintf(alias, "acpi*:%s:*", id->id); |
29b71a1c TR |
424 | return 1; |
425 | } | |
426 | ||
1da177e4 | 427 | /* looks like: "pnp:dD" */ |
22454cb9 KS |
428 | static void do_pnp_device_entry(void *symval, unsigned long size, |
429 | struct module *mod) | |
1da177e4 | 430 | { |
22454cb9 | 431 | const unsigned long id_size = sizeof(struct pnp_device_id); |
5e4c6564 KS |
432 | const unsigned int count = (size / id_size)-1; |
433 | const struct pnp_device_id *devs = symval; | |
434 | unsigned int i; | |
22454cb9 KS |
435 | |
436 | device_id_check(mod->name, "pnp", size, id_size, symval); | |
437 | ||
5e4c6564 KS |
438 | for (i = 0; i < count; i++) { |
439 | const char *id = (char *)devs[i].id; | |
72638f59 KS |
440 | char acpi_id[sizeof(devs[0].id)]; |
441 | int j; | |
5e4c6564 KS |
442 | |
443 | buf_printf(&mod->dev_table_buf, | |
444 | "MODULE_ALIAS(\"pnp:d%s*\");\n", id); | |
72638f59 KS |
445 | |
446 | /* fix broken pnp bus lowercasing */ | |
447 | for (j = 0; j < sizeof(acpi_id); j++) | |
448 | acpi_id[j] = toupper(id[j]); | |
5e4c6564 | 449 | buf_printf(&mod->dev_table_buf, |
72638f59 | 450 | "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id); |
5e4c6564 | 451 | } |
1da177e4 LT |
452 | } |
453 | ||
0c81eed4 KS |
454 | /* looks like: "pnp:dD" for every device of the card */ |
455 | static void do_pnp_card_entries(void *symval, unsigned long size, | |
456 | struct module *mod) | |
1da177e4 | 457 | { |
0c81eed4 KS |
458 | const unsigned long id_size = sizeof(struct pnp_card_device_id); |
459 | const unsigned int count = (size / id_size)-1; | |
460 | const struct pnp_card_device_id *cards = symval; | |
461 | unsigned int i; | |
1da177e4 | 462 | |
0c81eed4 KS |
463 | device_id_check(mod->name, "pnp", size, id_size, symval); |
464 | ||
465 | for (i = 0; i < count; i++) { | |
466 | unsigned int j; | |
467 | const struct pnp_card_device_id *card = &cards[i]; | |
468 | ||
469 | for (j = 0; j < PNP_MAX_DEVICES; j++) { | |
470 | const char *id = (char *)card->devs[j].id; | |
471 | int i2, j2; | |
472 | int dup = 0; | |
473 | ||
474 | if (!id[0]) | |
475 | break; | |
476 | ||
477 | /* find duplicate, already added value */ | |
478 | for (i2 = 0; i2 < i && !dup; i2++) { | |
479 | const struct pnp_card_device_id *card2 = &cards[i2]; | |
480 | ||
481 | for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) { | |
482 | const char *id2 = (char *)card2->devs[j2].id; | |
483 | ||
484 | if (!id2[0]) | |
485 | break; | |
486 | ||
487 | if (!strcmp(id, id2)) { | |
488 | dup = 1; | |
489 | break; | |
490 | } | |
491 | } | |
492 | } | |
493 | ||
494 | /* add an individual alias for every device entry */ | |
22454cb9 | 495 | if (!dup) { |
72638f59 KS |
496 | char acpi_id[sizeof(card->devs[0].id)]; |
497 | int k; | |
498 | ||
0c81eed4 KS |
499 | buf_printf(&mod->dev_table_buf, |
500 | "MODULE_ALIAS(\"pnp:d%s*\");\n", id); | |
72638f59 KS |
501 | |
502 | /* fix broken pnp bus lowercasing */ | |
503 | for (k = 0; k < sizeof(acpi_id); k++) | |
504 | acpi_id[k] = toupper(id[k]); | |
22454cb9 | 505 | buf_printf(&mod->dev_table_buf, |
72638f59 | 506 | "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id); |
22454cb9 | 507 | } |
0c81eed4 | 508 | } |
1da177e4 | 509 | } |
1da177e4 LT |
510 | } |
511 | ||
90829cfe DB |
512 | /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */ |
513 | static int do_pcmcia_entry(const char *filename, | |
514 | struct pcmcia_device_id *id, char *alias) | |
515 | { | |
516 | unsigned int i; | |
517 | ||
4fb7edce | 518 | id->match_flags = TO_NATIVE(id->match_flags); |
90829cfe DB |
519 | id->manf_id = TO_NATIVE(id->manf_id); |
520 | id->card_id = TO_NATIVE(id->card_id); | |
521 | id->func_id = TO_NATIVE(id->func_id); | |
522 | id->function = TO_NATIVE(id->function); | |
523 | id->device_no = TO_NATIVE(id->device_no); | |
4fb7edce | 524 | |
90829cfe DB |
525 | for (i=0; i<4; i++) { |
526 | id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]); | |
527 | } | |
528 | ||
529 | strcpy(alias, "pcmcia:"); | |
530 | ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID, | |
531 | id->manf_id); | |
532 | ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID, | |
533 | id->card_id); | |
534 | ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID, | |
535 | id->func_id); | |
536 | ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION, | |
537 | id->function); | |
538 | ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO, | |
539 | id->device_no); | |
540 | ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]); | |
541 | ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]); | |
542 | ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]); | |
543 | ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]); | |
544 | ||
ac551828 | 545 | add_wildcard(alias); |
90829cfe DB |
546 | return 1; |
547 | } | |
548 | ||
549 | ||
550 | ||
5e655772 JM |
551 | static int do_of_entry (const char *filename, struct of_device_id *of, char *alias) |
552 | { | |
d1ab4235 | 553 | int len; |
5e655772 | 554 | char *tmp; |
d1ab4235 | 555 | len = sprintf (alias, "of:N%sT%s", |
5e655772 | 556 | of->name[0] ? of->name : "*", |
d1ab4235 SM |
557 | of->type[0] ? of->type : "*"); |
558 | ||
559 | if (of->compatible[0]) | |
560 | sprintf (&alias[len], "%sC%s", | |
561 | of->type[0] ? "*" : "", | |
562 | of->compatible); | |
5e655772 JM |
563 | |
564 | /* Replace all whitespace with underscores */ | |
565 | for (tmp = alias; tmp && *tmp; tmp++) | |
566 | if (isspace (*tmp)) | |
567 | *tmp = '_'; | |
568 | ||
ac551828 | 569 | add_wildcard(alias); |
5e655772 JM |
570 | return 1; |
571 | } | |
572 | ||
fb120da6 SR |
573 | static int do_vio_entry(const char *filename, struct vio_device_id *vio, |
574 | char *alias) | |
575 | { | |
576 | char *tmp; | |
577 | ||
578 | sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*", | |
579 | vio->compat[0] ? vio->compat : "*"); | |
580 | ||
581 | /* Replace all whitespace with underscores */ | |
582 | for (tmp = alias; tmp && *tmp; tmp++) | |
583 | if (isspace (*tmp)) | |
584 | *tmp = '_'; | |
585 | ||
ac551828 | 586 | add_wildcard(alias); |
fb120da6 SR |
587 | return 1; |
588 | } | |
589 | ||
1d8f430c RR |
590 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
591 | ||
592 | static void do_input(char *alias, | |
593 | kernel_ulong_t *arr, unsigned int min, unsigned int max) | |
594 | { | |
595 | unsigned int i; | |
ddc5d341 DT |
596 | |
597 | for (i = min; i < max; i++) | |
e0e92632 | 598 | if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG))) |
ddc5d341 | 599 | sprintf(alias + strlen(alias), "%X,*", i); |
1d8f430c RR |
600 | } |
601 | ||
602 | /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */ | |
603 | static int do_input_entry(const char *filename, struct input_device_id *id, | |
604 | char *alias) | |
605 | { | |
606 | sprintf(alias, "input:"); | |
607 | ||
ddc5d341 DT |
608 | ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype); |
609 | ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor); | |
610 | ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product); | |
611 | ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version); | |
1d8f430c RR |
612 | |
613 | sprintf(alias + strlen(alias), "-e*"); | |
ddc5d341 | 614 | if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT) |
dc24f0e7 | 615 | do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX); |
1d8f430c | 616 | sprintf(alias + strlen(alias), "k*"); |
ddc5d341 | 617 | if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT) |
dc24f0e7 SR |
618 | do_input(alias, id->keybit, |
619 | INPUT_DEVICE_ID_KEY_MIN_INTERESTING, | |
620 | INPUT_DEVICE_ID_KEY_MAX); | |
1d8f430c | 621 | sprintf(alias + strlen(alias), "r*"); |
ddc5d341 | 622 | if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT) |
dc24f0e7 | 623 | do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX); |
1d8f430c | 624 | sprintf(alias + strlen(alias), "a*"); |
ddc5d341 | 625 | if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT) |
dc24f0e7 | 626 | do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX); |
1d8f430c | 627 | sprintf(alias + strlen(alias), "m*"); |
ddc5d341 | 628 | if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT) |
dc24f0e7 | 629 | do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX); |
1d8f430c | 630 | sprintf(alias + strlen(alias), "l*"); |
ddc5d341 | 631 | if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT) |
dc24f0e7 | 632 | do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX); |
1d8f430c | 633 | sprintf(alias + strlen(alias), "s*"); |
ddc5d341 | 634 | if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT) |
dc24f0e7 | 635 | do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX); |
1d8f430c | 636 | sprintf(alias + strlen(alias), "f*"); |
ddc5d341 | 637 | if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT) |
dc24f0e7 | 638 | do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX); |
1d8f430c | 639 | sprintf(alias + strlen(alias), "w*"); |
ddc5d341 | 640 | if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT) |
dc24f0e7 | 641 | do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX); |
1d8f430c RR |
642 | return 1; |
643 | } | |
644 | ||
07563c71 MT |
645 | static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa, |
646 | char *alias) | |
647 | { | |
648 | if (eisa->sig[0]) | |
649 | sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig); | |
ac551828 JD |
650 | else |
651 | strcat(alias, "*"); | |
07563c71 MT |
652 | return 1; |
653 | } | |
654 | ||
f3cf2673 KM |
655 | /* Looks like: parisc:tNhvNrevNsvN */ |
656 | static int do_parisc_entry(const char *filename, struct parisc_device_id *id, | |
657 | char *alias) | |
658 | { | |
659 | id->hw_type = TO_NATIVE(id->hw_type); | |
660 | id->hversion = TO_NATIVE(id->hversion); | |
661 | id->hversion_rev = TO_NATIVE(id->hversion_rev); | |
662 | id->sversion = TO_NATIVE(id->sversion); | |
663 | ||
664 | strcpy(alias, "parisc:"); | |
f354ef8a KM |
665 | ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type); |
666 | ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion); | |
667 | ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev); | |
668 | ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion); | |
f3cf2673 | 669 | |
ac551828 | 670 | add_wildcard(alias); |
f3cf2673 KM |
671 | return 1; |
672 | } | |
673 | ||
d59b66c7 PO |
674 | /* Looks like: sdio:cNvNdN. */ |
675 | static int do_sdio_entry(const char *filename, | |
676 | struct sdio_device_id *id, char *alias) | |
677 | { | |
678 | id->class = TO_NATIVE(id->class); | |
679 | id->vendor = TO_NATIVE(id->vendor); | |
680 | id->device = TO_NATIVE(id->device); | |
681 | ||
682 | strcpy(alias, "sdio:"); | |
683 | ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class); | |
684 | ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor); | |
685 | ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device); | |
ac551828 | 686 | add_wildcard(alias); |
038a5008 LT |
687 | return 1; |
688 | } | |
689 | ||
61e115a5 MB |
690 | /* Looks like: ssb:vNidNrevN. */ |
691 | static int do_ssb_entry(const char *filename, | |
692 | struct ssb_device_id *id, char *alias) | |
693 | { | |
694 | id->vendor = TO_NATIVE(id->vendor); | |
695 | id->coreid = TO_NATIVE(id->coreid); | |
696 | id->revision = TO_NATIVE(id->revision); | |
d59b66c7 | 697 | |
61e115a5 MB |
698 | strcpy(alias, "ssb:"); |
699 | ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor); | |
700 | ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid); | |
701 | ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision); | |
ac551828 | 702 | add_wildcard(alias); |
d59b66c7 PO |
703 | return 1; |
704 | } | |
705 | ||
8369ae33 RM |
706 | /* Looks like: bcma:mNidNrevNclN. */ |
707 | static int do_bcma_entry(const char *filename, | |
708 | struct bcma_device_id *id, char *alias) | |
709 | { | |
710 | id->manuf = TO_NATIVE(id->manuf); | |
711 | id->id = TO_NATIVE(id->id); | |
712 | id->rev = TO_NATIVE(id->rev); | |
713 | id->class = TO_NATIVE(id->class); | |
714 | ||
715 | strcpy(alias, "bcma:"); | |
716 | ADD(alias, "m", id->manuf != BCMA_ANY_MANUF, id->manuf); | |
717 | ADD(alias, "id", id->id != BCMA_ANY_ID, id->id); | |
718 | ADD(alias, "rev", id->rev != BCMA_ANY_REV, id->rev); | |
719 | ADD(alias, "cl", id->class != BCMA_ANY_CLASS, id->class); | |
720 | add_wildcard(alias); | |
721 | return 1; | |
722 | } | |
723 | ||
b01d9f28 RR |
724 | /* Looks like: virtio:dNvN */ |
725 | static int do_virtio_entry(const char *filename, struct virtio_device_id *id, | |
726 | char *alias) | |
727 | { | |
728 | id->device = TO_NATIVE(id->device); | |
729 | id->vendor = TO_NATIVE(id->vendor); | |
730 | ||
731 | strcpy(alias, "virtio:"); | |
e3353853 | 732 | ADD(alias, "d", id->device != VIRTIO_DEV_ANY_ID, id->device); |
b01d9f28 RR |
733 | ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor); |
734 | ||
ac551828 | 735 | add_wildcard(alias); |
b01d9f28 RR |
736 | return 1; |
737 | } | |
738 | ||
d2ee52aa S |
739 | /* |
740 | * Looks like: vmbus:guid | |
741 | * Each byte of the guid will be represented by two hex characters | |
742 | * in the name. | |
743 | */ | |
744 | ||
745 | static int do_vmbus_entry(const char *filename, struct hv_vmbus_device_id *id, | |
746 | char *alias) | |
747 | { | |
748 | int i; | |
ebf16e38 | 749 | char guid_name[((sizeof(id->guid) + 1)) * 2]; |
d2ee52aa | 750 | |
ebf16e38 | 751 | for (i = 0; i < (sizeof(id->guid) * 2); i += 2) |
d2ee52aa S |
752 | sprintf(&guid_name[i], "%02x", id->guid[i/2]); |
753 | ||
754 | strcpy(alias, "vmbus:"); | |
755 | strcat(alias, guid_name); | |
756 | ||
757 | return 1; | |
758 | } | |
759 | ||
d2653e92 JD |
760 | /* Looks like: i2c:S */ |
761 | static int do_i2c_entry(const char *filename, struct i2c_device_id *id, | |
762 | char *alias) | |
763 | { | |
764 | sprintf(alias, I2C_MODULE_PREFIX "%s", id->name); | |
765 | ||
766 | return 1; | |
767 | } | |
768 | ||
e0626e38 | 769 | /* Looks like: spi:S */ |
75368bf6 AV |
770 | static int do_spi_entry(const char *filename, struct spi_device_id *id, |
771 | char *alias) | |
772 | { | |
e0626e38 | 773 | sprintf(alias, SPI_MODULE_PREFIX "%s", id->name); |
75368bf6 AV |
774 | |
775 | return 1; | |
776 | } | |
777 | ||
d945b697 DW |
778 | static const struct dmifield { |
779 | const char *prefix; | |
780 | int field; | |
781 | } dmi_fields[] = { | |
782 | { "bvn", DMI_BIOS_VENDOR }, | |
783 | { "bvr", DMI_BIOS_VERSION }, | |
784 | { "bd", DMI_BIOS_DATE }, | |
785 | { "svn", DMI_SYS_VENDOR }, | |
786 | { "pn", DMI_PRODUCT_NAME }, | |
787 | { "pvr", DMI_PRODUCT_VERSION }, | |
788 | { "rvn", DMI_BOARD_VENDOR }, | |
789 | { "rn", DMI_BOARD_NAME }, | |
790 | { "rvr", DMI_BOARD_VERSION }, | |
791 | { "cvn", DMI_CHASSIS_VENDOR }, | |
792 | { "ct", DMI_CHASSIS_TYPE }, | |
793 | { "cvr", DMI_CHASSIS_VERSION }, | |
794 | { NULL, DMI_NONE } | |
795 | }; | |
796 | ||
797 | static void dmi_ascii_filter(char *d, const char *s) | |
798 | { | |
799 | /* Filter out characters we don't want to see in the modalias string */ | |
800 | for (; *s; s++) | |
801 | if (*s > ' ' && *s < 127 && *s != ':') | |
802 | *(d++) = *s; | |
803 | ||
804 | *d = 0; | |
805 | } | |
806 | ||
807 | ||
808 | static int do_dmi_entry(const char *filename, struct dmi_system_id *id, | |
809 | char *alias) | |
810 | { | |
811 | int i, j; | |
812 | ||
813 | sprintf(alias, "dmi*"); | |
814 | ||
815 | for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) { | |
816 | for (j = 0; j < 4; j++) { | |
817 | if (id->matches[j].slot && | |
818 | id->matches[j].slot == dmi_fields[i].field) { | |
819 | sprintf(alias + strlen(alias), ":%s*", | |
820 | dmi_fields[i].prefix); | |
821 | dmi_ascii_filter(alias + strlen(alias), | |
822 | id->matches[j].substr); | |
823 | strcat(alias, "*"); | |
824 | } | |
825 | } | |
826 | } | |
827 | ||
828 | strcat(alias, ":"); | |
829 | return 1; | |
830 | } | |
57fee4a5 EM |
831 | |
832 | static int do_platform_entry(const char *filename, | |
833 | struct platform_device_id *id, char *alias) | |
834 | { | |
835 | sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name); | |
836 | return 1; | |
837 | } | |
838 | ||
8626d3b4 DW |
839 | static int do_mdio_entry(const char *filename, |
840 | struct mdio_device_id *id, char *alias) | |
841 | { | |
842 | int i; | |
843 | ||
844 | alias += sprintf(alias, MDIO_MODULE_PREFIX); | |
845 | ||
846 | for (i = 0; i < 32; i++) { | |
847 | if (!((id->phy_id_mask >> (31-i)) & 1)) | |
848 | *(alias++) = '?'; | |
849 | else if ((id->phy_id >> (31-i)) & 1) | |
850 | *(alias++) = '1'; | |
851 | else | |
852 | *(alias++) = '0'; | |
853 | } | |
854 | ||
855 | /* Terminate the string */ | |
856 | *alias = 0; | |
857 | ||
858 | return 1; | |
859 | } | |
860 | ||
bf54a2b3 GU |
861 | /* Looks like: zorro:iN. */ |
862 | static int do_zorro_entry(const char *filename, struct zorro_device_id *id, | |
863 | char *alias) | |
864 | { | |
865 | id->id = TO_NATIVE(id->id); | |
866 | strcpy(alias, "zorro:"); | |
867 | ADD(alias, "i", id->id != ZORRO_WILDCARD, id->id); | |
868 | return 1; | |
869 | } | |
870 | ||
fedb3d27 OZ |
871 | /* looks like: "pnp:dD" */ |
872 | static int do_isapnp_entry(const char *filename, | |
873 | struct isapnp_device_id *id, char *alias) | |
874 | { | |
875 | sprintf(alias, "pnp:d%c%c%c%x%x%x%x*", | |
876 | 'A' + ((id->vendor >> 2) & 0x3f) - 1, | |
877 | 'A' + (((id->vendor & 3) << 3) | ((id->vendor >> 13) & 7)) - 1, | |
878 | 'A' + ((id->vendor >> 8) & 0x1f) - 1, | |
879 | (id->function >> 4) & 0x0f, id->function & 0x0f, | |
880 | (id->function >> 12) & 0x0f, (id->function >> 8) & 0x0f); | |
881 | return 1; | |
882 | } | |
883 | ||
523817bd DM |
884 | /* |
885 | * Append a match expression for a single masked hex digit. | |
886 | * outp points to a pointer to the character at which to append. | |
887 | * *outp is updated on return to point just after the appended text, | |
888 | * to facilitate further appending. | |
889 | */ | |
890 | static void append_nibble_mask(char **outp, | |
891 | unsigned int nibble, unsigned int mask) | |
892 | { | |
893 | char *p = *outp; | |
894 | unsigned int i; | |
895 | ||
896 | switch (mask) { | |
897 | case 0: | |
898 | *p++ = '?'; | |
899 | break; | |
900 | ||
901 | case 0xf: | |
902 | p += sprintf(p, "%X", nibble); | |
903 | break; | |
904 | ||
905 | default: | |
906 | /* | |
907 | * Dumbly emit a match pattern for all possible matching | |
908 | * digits. This could be improved in some cases using ranges, | |
909 | * but it has the advantage of being trivially correct, and is | |
910 | * often optimal. | |
911 | */ | |
912 | *p++ = '['; | |
913 | for (i = 0; i < 0x10; i++) | |
914 | if ((i & mask) == nibble) | |
915 | p += sprintf(p, "%X", i); | |
916 | *p++ = ']'; | |
917 | } | |
918 | ||
919 | /* Ensure that the string remains NUL-terminated: */ | |
920 | *p = '\0'; | |
921 | ||
922 | /* Advance the caller's end-of-string pointer: */ | |
923 | *outp = p; | |
924 | } | |
925 | ||
926 | /* | |
927 | * looks like: "amba:dN" | |
928 | * | |
929 | * N is exactly 8 digits, where each is an upper-case hex digit, or | |
930 | * a ? or [] pattern matching exactly one digit. | |
931 | */ | |
932 | static int do_amba_entry(const char *filename, | |
933 | struct amba_id *id, char *alias) | |
934 | { | |
935 | unsigned int digit; | |
936 | char *p = alias; | |
937 | ||
938 | if ((id->id & id->mask) != id->id) | |
939 | fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: " | |
940 | "id=0x%08X, mask=0x%08X. Please fix this driver.\n", | |
941 | filename, id->id, id->mask); | |
942 | ||
943 | p += sprintf(alias, "amba:d"); | |
944 | for (digit = 0; digit < 8; digit++) | |
945 | append_nibble_mask(&p, | |
946 | (id->id >> (4 * (7 - digit))) & 0xf, | |
947 | (id->mask >> (4 * (7 - digit))) & 0xf); | |
948 | ||
949 | return 1; | |
950 | } | |
951 | ||
626596e2 RR |
952 | /* Does namelen bytes of name exactly match the symbol? */ |
953 | static bool sym_is(const char *name, unsigned namelen, const char *symbol) | |
1da177e4 | 954 | { |
626596e2 RR |
955 | if (namelen != strlen(symbol)) |
956 | return false; | |
1da177e4 | 957 | |
626596e2 | 958 | return memcmp(name, symbol, namelen) == 0; |
1da177e4 LT |
959 | } |
960 | ||
961 | static void do_table(void *symval, unsigned long size, | |
962 | unsigned long id_size, | |
fb33d816 | 963 | const char *device_id, |
1da177e4 LT |
964 | void *function, |
965 | struct module *mod) | |
966 | { | |
967 | unsigned int i; | |
968 | char alias[500]; | |
969 | int (*do_entry)(const char *, void *entry, char *alias) = function; | |
970 | ||
e0049825 | 971 | device_id_check(mod->name, device_id, size, id_size, symval); |
1da177e4 LT |
972 | /* Leave last one: it's the terminator. */ |
973 | size -= id_size; | |
974 | ||
975 | for (i = 0; i < size; i += id_size) { | |
976 | if (do_entry(mod->name, symval+i, alias)) { | |
1da177e4 LT |
977 | buf_printf(&mod->dev_table_buf, |
978 | "MODULE_ALIAS(\"%s\");\n", alias); | |
979 | } | |
980 | } | |
981 | } | |
982 | ||
626596e2 RR |
983 | /* This array collects all instances that use the generic do_table above */ |
984 | struct devtable_switch { | |
985 | const char *device_id; /* name of table, __mod_<name>_device_table. */ | |
986 | unsigned long id_size; | |
987 | void *function; | |
988 | }; | |
989 | ||
990 | static const struct devtable_switch devtable_switch[] = { | |
991 | { "acpi", sizeof(struct acpi_device_id), do_acpi_entry }, | |
992 | { "amba", sizeof(struct amba_id), do_amba_entry }, | |
993 | { "ap", sizeof(struct ap_device_id), do_ap_entry }, | |
994 | { "bcma", sizeof(struct bcma_device_id), do_bcma_entry }, | |
995 | { "ccw", sizeof(struct ccw_device_id), do_ccw_entry }, | |
996 | { "css", sizeof(struct css_device_id), do_css_entry }, | |
997 | { "dmi", sizeof(struct dmi_system_id), do_dmi_entry }, | |
998 | { "eisa", sizeof(struct eisa_device_id), do_eisa_entry }, | |
999 | { "hid", sizeof(struct hid_device_id), do_hid_entry }, | |
1000 | { "i2c", sizeof(struct i2c_device_id), do_i2c_entry }, | |
1001 | { "ieee1394", sizeof(struct ieee1394_device_id), do_ieee1394_entry }, | |
1002 | { "input", sizeof(struct input_device_id), do_input_entry }, | |
1003 | { "isa", sizeof(struct isapnp_device_id), do_isapnp_entry }, | |
1004 | { "mdio", sizeof(struct mdio_device_id), do_mdio_entry }, | |
1005 | { "of", sizeof(struct of_device_id), do_of_entry }, | |
1006 | { "parisc", sizeof(struct parisc_device_id), do_parisc_entry }, | |
1007 | { "pci", sizeof(struct pci_device_id), do_pci_entry }, | |
1008 | { "pcmcia", sizeof(struct pcmcia_device_id), do_pcmcia_entry }, | |
1009 | { "platform", sizeof(struct platform_device_id), do_platform_entry }, | |
1010 | { "sdio", sizeof(struct sdio_device_id), do_sdio_entry }, | |
1011 | { "serio", sizeof(struct serio_device_id), do_serio_entry }, | |
1012 | { "spi", sizeof(struct spi_device_id), do_spi_entry }, | |
1013 | { "ssb", sizeof(struct ssb_device_id), do_ssb_entry }, | |
1014 | { "vio", sizeof(struct vio_device_id), do_vio_entry }, | |
1015 | { "virtio", sizeof(struct virtio_device_id), do_virtio_entry }, | |
1016 | { "vmbus", sizeof(struct hv_vmbus_device_id), do_vmbus_entry }, | |
1017 | { "zorro", sizeof(struct zorro_device_id), do_zorro_entry }, | |
1018 | }; | |
1019 | ||
1da177e4 LT |
1020 | /* Create MODULE_ALIAS() statements. |
1021 | * At this time, we cannot write the actual output C source yet, | |
1022 | * so we write into the mod->dev_table_buf buffer. */ | |
1023 | void handle_moddevtable(struct module *mod, struct elf_info *info, | |
1024 | Elf_Sym *sym, const char *symname) | |
1025 | { | |
1026 | void *symval; | |
e0049825 | 1027 | char *zeros = NULL; |
626596e2 RR |
1028 | const char *name; |
1029 | unsigned int namelen; | |
1da177e4 LT |
1030 | |
1031 | /* We're looking for a section relative symbol */ | |
1ce53adf | 1032 | if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections) |
1da177e4 LT |
1033 | return; |
1034 | ||
626596e2 RR |
1035 | /* All our symbols are of form <prefix>__mod_XXX_device_table. */ |
1036 | name = strstr(symname, "__mod_"); | |
1037 | if (!name) | |
1038 | return; | |
1039 | name += strlen("__mod_"); | |
1040 | namelen = strlen(name); | |
1041 | if (namelen < strlen("_device_table")) | |
1042 | return; | |
1043 | if (strcmp(name + namelen - strlen("_device_table"), "_device_table")) | |
1044 | return; | |
1045 | namelen -= strlen("_device_table"); | |
1046 | ||
e0049825 | 1047 | /* Handle all-NULL symbols allocated into .bss */ |
1ce53adf | 1048 | if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) { |
e0049825 KC |
1049 | zeros = calloc(1, sym->st_size); |
1050 | symval = zeros; | |
1051 | } else { | |
1052 | symval = (void *)info->hdr | |
1ce53adf | 1053 | + info->sechdrs[get_secindex(info, sym)].sh_offset |
e0049825 KC |
1054 | + sym->st_value; |
1055 | } | |
1da177e4 | 1056 | |
626596e2 RR |
1057 | /* First handle the "special" cases */ |
1058 | if (sym_is(name, namelen, "usb")) | |
b19dcd93 | 1059 | do_usb_table(symval, sym->st_size, mod); |
626596e2 | 1060 | else if (sym_is(name, namelen, "pnp")) |
22454cb9 | 1061 | do_pnp_device_entry(symval, sym->st_size, mod); |
626596e2 | 1062 | else if (sym_is(name, namelen, "pnp_card")) |
0c81eed4 | 1063 | do_pnp_card_entries(symval, sym->st_size, mod); |
626596e2 RR |
1064 | else { |
1065 | const struct devtable_switch *p = devtable_switch; | |
1066 | unsigned int i; | |
1067 | ||
1068 | for (i = 0; i < ARRAY_SIZE(devtable_switch); i++, p++) { | |
1069 | if (sym_is(name, namelen, p->device_id)) { | |
1070 | do_table(symval, sym->st_size, p->id_size, | |
1071 | p->device_id, p->function, mod); | |
1072 | break; | |
1073 | } | |
1074 | } | |
1075 | } | |
e0049825 | 1076 | free(zeros); |
1da177e4 LT |
1077 | } |
1078 | ||
1079 | /* Now add out buffered information to the generated C source */ | |
1080 | void add_moddevtable(struct buffer *buf, struct module *mod) | |
1081 | { | |
1082 | buf_printf(buf, "\n"); | |
1083 | buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos); | |
1084 | free(mod->dev_table_buf.p); | |
1085 | } |