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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#include "devicetable-offsets.h"
15
16/* We use the ELF typedefs for kernel_ulong_t but bite the bullet and
17 * use either stdint.h or inttypes.h for the rest. */
18#if KERNEL_ELFCLASS == ELFCLASS32
19typedef Elf32_Addr kernel_ulong_t;
20#define BITS_PER_LONG 32
21#else
22typedef Elf64_Addr kernel_ulong_t;
23#define BITS_PER_LONG 64
24#endif
25#ifdef __sun__
26#include <inttypes.h>
27#else
28#include <stdint.h>
29#endif
30
31#include <ctype.h>
32#include <stdbool.h>
33
34typedef uint32_t __u32;
35typedef uint16_t __u16;
36typedef unsigned char __u8;
37
38/* UUID types for backward compatibility, don't use in new code */
39typedef struct {
40 __u8 b[16];
41} guid_t;
42
43typedef struct {
44 __u8 b[16];
45} uuid_t;
46
47#define UUID_STRING_LEN 36
48
49/* MEI UUID type, don't use anywhere else */
50typedef struct {
51 __u8 b[16];
52} uuid_le;
53
54/* Big exception to the "don't include kernel headers into userspace, which
55 * even potentially has different endianness and word sizes, since
56 * we handle those differences explicitly below */
57#include "../../include/linux/mod_devicetable.h"
58
59/* This array collects all instances that use the generic do_table */
60struct devtable {
61 const char *device_id; /* name of table, __mod_<name>__*_device_table. */
62 unsigned long id_size;
63 int (*do_entry)(const char *filename, void *symval, char *alias);
64};
65
66/* Size of alias provided to do_entry functions */
67#define ALIAS_SIZE 500
68
69/* Define a variable f that holds the value of field f of struct devid
70 * based at address m.
71 */
72#define DEF_FIELD(m, devid, f) \
73 typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f))
74
75/* Define a variable v that holds the address of field f of struct devid
76 * based at address m. Due to the way typeof works, for a field of type
77 * T[N] the variable has type T(*)[N], _not_ T*.
78 */
79#define DEF_FIELD_ADDR_VAR(m, devid, f, v) \
80 typeof(((struct devid *)0)->f) *v = ((m) + OFF_##devid##_##f)
81
82/* Define a variable f that holds the address of field f of struct devid
83 * based at address m. Due to the way typeof works, for a field of type
84 * T[N] the variable has type T(*)[N], _not_ T*.
85 */
86#define DEF_FIELD_ADDR(m, devid, f) \
87 DEF_FIELD_ADDR_VAR(m, devid, f, f)
88
89#define ADD(str, sep, cond, field) \
90do { \
91 strcat(str, sep); \
92 if (cond) \
93 sprintf(str + strlen(str), \
94 sizeof(field) == 1 ? "%02X" : \
95 sizeof(field) == 2 ? "%04X" : \
96 sizeof(field) == 4 ? "%08X" : "", \
97 field); \
98 else \
99 sprintf(str + strlen(str), "*"); \
100} while(0)
101
102/* End in a wildcard, for future extension */
103static inline void add_wildcard(char *str)
104{
105 int len = strlen(str);
106
107 if (str[len - 1] != '*')
108 strcat(str + len, "*");
109}
110
111static inline void add_uuid(char *str, uuid_le uuid)
112{
113 int len = strlen(str);
114
115 sprintf(str + len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
116 uuid.b[3], uuid.b[2], uuid.b[1], uuid.b[0],
117 uuid.b[5], uuid.b[4], uuid.b[7], uuid.b[6],
118 uuid.b[8], uuid.b[9], uuid.b[10], uuid.b[11],
119 uuid.b[12], uuid.b[13], uuid.b[14], uuid.b[15]);
120}
121
122static inline void add_guid(char *str, guid_t guid)
123{
124 int len = strlen(str);
125
126 sprintf(str + len, "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
127 guid.b[3], guid.b[2], guid.b[1], guid.b[0],
128 guid.b[5], guid.b[4], guid.b[7], guid.b[6],
129 guid.b[8], guid.b[9], guid.b[10], guid.b[11],
130 guid.b[12], guid.b[13], guid.b[14], guid.b[15]);
131}
132
133/**
134 * Check that sizeof(device_id type) are consistent with size of section
135 * in .o file. If in-consistent then userspace and kernel does not agree
136 * on actual size which is a bug.
137 * Also verify that the final entry in the table is all zeros.
138 * Ignore both checks if build host differ from target host and size differs.
139 **/
140static void device_id_check(const char *modname, const char *device_id,
141 unsigned long size, unsigned long id_size,
142 void *symval)
143{
144 int i;
145
146 if (size % id_size || size < id_size) {
147 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo of the size of section __mod_%s__<identifier>_device_table=%lu.\n"
148 "Fix definition of struct %s_device_id in mod_devicetable.h\n",
149 modname, device_id, id_size, device_id, size, device_id);
150 }
151 /* Verify last one is a terminator */
152 for (i = 0; i < id_size; i++ ) {
153 if (*(uint8_t*)(symval+size-id_size+i)) {
154 fprintf(stderr,
155 "%s: struct %s_device_id is %lu bytes. The last of %lu is:\n",
156 modname, device_id, id_size, size / id_size);
157 for (i = 0; i < id_size; i++ )
158 fprintf(stderr,"0x%02x ",
159 *(uint8_t*)(symval+size-id_size+i) );
160 fprintf(stderr,"\n");
161 fatal("%s: struct %s_device_id is not terminated with a NULL entry!\n",
162 modname, device_id);
163 }
164 }
165}
166
167/* USB is special because the bcdDevice can be matched against a numeric range */
168/* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
169static void do_usb_entry(void *symval,
170 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
171 unsigned char range_lo, unsigned char range_hi,
172 unsigned char max, struct module *mod)
173{
174 char alias[500];
175 DEF_FIELD(symval, usb_device_id, match_flags);
176 DEF_FIELD(symval, usb_device_id, idVendor);
177 DEF_FIELD(symval, usb_device_id, idProduct);
178 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
179 DEF_FIELD(symval, usb_device_id, bDeviceClass);
180 DEF_FIELD(symval, usb_device_id, bDeviceSubClass);
181 DEF_FIELD(symval, usb_device_id, bDeviceProtocol);
182 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
183 DEF_FIELD(symval, usb_device_id, bInterfaceSubClass);
184 DEF_FIELD(symval, usb_device_id, bInterfaceProtocol);
185 DEF_FIELD(symval, usb_device_id, bInterfaceNumber);
186
187 strcpy(alias, "usb:");
188 ADD(alias, "v", match_flags&USB_DEVICE_ID_MATCH_VENDOR,
189 idVendor);
190 ADD(alias, "p", match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
191 idProduct);
192
193 strcat(alias, "d");
194 if (bcdDevice_initial_digits)
195 sprintf(alias + strlen(alias), "%0*X",
196 bcdDevice_initial_digits, bcdDevice_initial);
197 if (range_lo == range_hi)
198 sprintf(alias + strlen(alias), "%X", range_lo);
199 else if (range_lo > 0 || range_hi < max) {
200 if (range_lo > 0x9 || range_hi < 0xA)
201 sprintf(alias + strlen(alias),
202 "[%X-%X]",
203 range_lo,
204 range_hi);
205 else {
206 sprintf(alias + strlen(alias),
207 range_lo < 0x9 ? "[%X-9" : "[%X",
208 range_lo);
209 sprintf(alias + strlen(alias),
210 range_hi > 0xA ? "A-%X]" : "%X]",
211 range_hi);
212 }
213 }
214 if (bcdDevice_initial_digits < (sizeof(bcdDevice_lo) * 2 - 1))
215 strcat(alias, "*");
216
217 ADD(alias, "dc", match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
218 bDeviceClass);
219 ADD(alias, "dsc", match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
220 bDeviceSubClass);
221 ADD(alias, "dp", match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
222 bDeviceProtocol);
223 ADD(alias, "ic", match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
224 bInterfaceClass);
225 ADD(alias, "isc", match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
226 bInterfaceSubClass);
227 ADD(alias, "ip", match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
228 bInterfaceProtocol);
229 ADD(alias, "in", match_flags&USB_DEVICE_ID_MATCH_INT_NUMBER,
230 bInterfaceNumber);
231
232 add_wildcard(alias);
233 buf_printf(&mod->dev_table_buf,
234 "MODULE_ALIAS(\"%s\");\n", alias);
235}
236
237/* Handles increment/decrement of BCD formatted integers */
238/* Returns the previous value, so it works like i++ or i-- */
239static unsigned int incbcd(unsigned int *bcd,
240 int inc,
241 unsigned char max,
242 size_t chars)
243{
244 unsigned int init = *bcd, i, j;
245 unsigned long long c, dec = 0;
246
247 /* If bcd is not in BCD format, just increment */
248 if (max > 0x9) {
249 *bcd += inc;
250 return init;
251 }
252
253 /* Convert BCD to Decimal */
254 for (i=0 ; i < chars ; i++) {
255 c = (*bcd >> (i << 2)) & 0xf;
256 c = c > 9 ? 9 : c; /* force to bcd just in case */
257 for (j=0 ; j < i ; j++)
258 c = c * 10;
259 dec += c;
260 }
261
262 /* Do our increment/decrement */
263 dec += inc;
264 *bcd = 0;
265
266 /* Convert back to BCD */
267 for (i=0 ; i < chars ; i++) {
268 for (c=1,j=0 ; j < i ; j++)
269 c = c * 10;
270 c = (dec / c) % 10;
271 *bcd += c << (i << 2);
272 }
273 return init;
274}
275
276static void do_usb_entry_multi(void *symval, struct module *mod)
277{
278 unsigned int devlo, devhi;
279 unsigned char chi, clo, max;
280 int ndigits;
281
282 DEF_FIELD(symval, usb_device_id, match_flags);
283 DEF_FIELD(symval, usb_device_id, idVendor);
284 DEF_FIELD(symval, usb_device_id, idProduct);
285 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
286 DEF_FIELD(symval, usb_device_id, bcdDevice_hi);
287 DEF_FIELD(symval, usb_device_id, bDeviceClass);
288 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
289
290 devlo = match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
291 bcdDevice_lo : 0x0U;
292 devhi = match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
293 bcdDevice_hi : ~0x0U;
294
295 /* Figure out if this entry is in bcd or hex format */
296 max = 0x9; /* Default to decimal format */
297 for (ndigits = 0 ; ndigits < sizeof(bcdDevice_lo) * 2 ; ndigits++) {
298 clo = (devlo >> (ndigits << 2)) & 0xf;
299 chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf;
300 if (clo > max || chi > max) {
301 max = 0xf;
302 break;
303 }
304 }
305
306 /*
307 * Some modules (visor) have empty slots as placeholder for
308 * run-time specification that results in catch-all alias
309 */
310 if (!(idVendor | idProduct | bDeviceClass | bInterfaceClass))
311 return;
312
313 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
314 for (ndigits = sizeof(bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
315 clo = devlo & 0xf;
316 chi = devhi & 0xf;
317 if (chi > max) /* If we are in bcd mode, truncate if necessary */
318 chi = max;
319 devlo >>= 4;
320 devhi >>= 4;
321
322 if (devlo == devhi || !ndigits) {
323 do_usb_entry(symval, devlo, ndigits, clo, chi, max, mod);
324 break;
325 }
326
327 if (clo > 0x0)
328 do_usb_entry(symval,
329 incbcd(&devlo, 1, max,
330 sizeof(bcdDevice_lo) * 2),
331 ndigits, clo, max, max, mod);
332
333 if (chi < max)
334 do_usb_entry(symval,
335 incbcd(&devhi, -1, max,
336 sizeof(bcdDevice_lo) * 2),
337 ndigits, 0x0, chi, max, mod);
338 }
339}
340
341static void do_usb_table(void *symval, unsigned long size,
342 struct module *mod)
343{
344 unsigned int i;
345 const unsigned long id_size = SIZE_usb_device_id;
346
347 device_id_check(mod->name, "usb", size, id_size, symval);
348
349 /* Leave last one: it's the terminator. */
350 size -= id_size;
351
352 for (i = 0; i < size; i += id_size)
353 do_usb_entry_multi(symval + i, mod);
354}
355
356static void do_of_entry_multi(void *symval, struct module *mod)
357{
358 char alias[500];
359 int len;
360 char *tmp;
361
362 DEF_FIELD_ADDR(symval, of_device_id, name);
363 DEF_FIELD_ADDR(symval, of_device_id, type);
364 DEF_FIELD_ADDR(symval, of_device_id, compatible);
365
366 len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*",
367 (*type)[0] ? *type : "*");
368
369 if ((*compatible)[0])
370 sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "",
371 *compatible);
372
373 /* Replace all whitespace with underscores */
374 for (tmp = alias; tmp && *tmp; tmp++)
375 if (isspace(*tmp))
376 *tmp = '_';
377
378 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
379 strcat(alias, "C");
380 add_wildcard(alias);
381 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
382}
383
384static void do_of_table(void *symval, unsigned long size,
385 struct module *mod)
386{
387 unsigned int i;
388 const unsigned long id_size = SIZE_of_device_id;
389
390 device_id_check(mod->name, "of", size, id_size, symval);
391
392 /* Leave last one: it's the terminator. */
393 size -= id_size;
394
395 for (i = 0; i < size; i += id_size)
396 do_of_entry_multi(symval + i, mod);
397}
398
399/* Looks like: hid:bNvNpN */
400static int do_hid_entry(const char *filename,
401 void *symval, char *alias)
402{
403 DEF_FIELD(symval, hid_device_id, bus);
404 DEF_FIELD(symval, hid_device_id, group);
405 DEF_FIELD(symval, hid_device_id, vendor);
406 DEF_FIELD(symval, hid_device_id, product);
407
408 sprintf(alias, "hid:");
409 ADD(alias, "b", bus != HID_BUS_ANY, bus);
410 ADD(alias, "g", group != HID_GROUP_ANY, group);
411 ADD(alias, "v", vendor != HID_ANY_ID, vendor);
412 ADD(alias, "p", product != HID_ANY_ID, product);
413
414 return 1;
415}
416
417/* Looks like: ieee1394:venNmoNspNverN */
418static int do_ieee1394_entry(const char *filename,
419 void *symval, char *alias)
420{
421 DEF_FIELD(symval, ieee1394_device_id, match_flags);
422 DEF_FIELD(symval, ieee1394_device_id, vendor_id);
423 DEF_FIELD(symval, ieee1394_device_id, model_id);
424 DEF_FIELD(symval, ieee1394_device_id, specifier_id);
425 DEF_FIELD(symval, ieee1394_device_id, version);
426
427 strcpy(alias, "ieee1394:");
428 ADD(alias, "ven", match_flags & IEEE1394_MATCH_VENDOR_ID,
429 vendor_id);
430 ADD(alias, "mo", match_flags & IEEE1394_MATCH_MODEL_ID,
431 model_id);
432 ADD(alias, "sp", match_flags & IEEE1394_MATCH_SPECIFIER_ID,
433 specifier_id);
434 ADD(alias, "ver", match_flags & IEEE1394_MATCH_VERSION,
435 version);
436
437 add_wildcard(alias);
438 return 1;
439}
440
441/* Looks like: pci:vNdNsvNsdNbcNscNiN or <prefix>_pci:vNdNsvNsdNbcNscNiN. */
442static int do_pci_entry(const char *filename,
443 void *symval, char *alias)
444{
445 /* Class field can be divided into these three. */
446 unsigned char baseclass, subclass, interface,
447 baseclass_mask, subclass_mask, interface_mask;
448
449 DEF_FIELD(symval, pci_device_id, vendor);
450 DEF_FIELD(symval, pci_device_id, device);
451 DEF_FIELD(symval, pci_device_id, subvendor);
452 DEF_FIELD(symval, pci_device_id, subdevice);
453 DEF_FIELD(symval, pci_device_id, class);
454 DEF_FIELD(symval, pci_device_id, class_mask);
455 DEF_FIELD(symval, pci_device_id, override_only);
456
457 switch (override_only) {
458 case 0:
459 strcpy(alias, "pci:");
460 break;
461 case PCI_ID_F_VFIO_DRIVER_OVERRIDE:
462 strcpy(alias, "vfio_pci:");
463 break;
464 default:
465 warn("Unknown PCI driver_override alias %08X\n",
466 override_only);
467 return 0;
468 }
469
470 ADD(alias, "v", vendor != PCI_ANY_ID, vendor);
471 ADD(alias, "d", device != PCI_ANY_ID, device);
472 ADD(alias, "sv", subvendor != PCI_ANY_ID, subvendor);
473 ADD(alias, "sd", subdevice != PCI_ANY_ID, subdevice);
474
475 baseclass = (class) >> 16;
476 baseclass_mask = (class_mask) >> 16;
477 subclass = (class) >> 8;
478 subclass_mask = (class_mask) >> 8;
479 interface = class;
480 interface_mask = class_mask;
481
482 if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
483 || (subclass_mask != 0 && subclass_mask != 0xFF)
484 || (interface_mask != 0 && interface_mask != 0xFF)) {
485 warn("Can't handle masks in %s:%04X\n",
486 filename, class_mask);
487 return 0;
488 }
489
490 ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
491 ADD(alias, "sc", subclass_mask == 0xFF, subclass);
492 ADD(alias, "i", interface_mask == 0xFF, interface);
493 add_wildcard(alias);
494 return 1;
495}
496
497/* looks like: "ccw:tNmNdtNdmN" */
498static int do_ccw_entry(const char *filename,
499 void *symval, char *alias)
500{
501 DEF_FIELD(symval, ccw_device_id, match_flags);
502 DEF_FIELD(symval, ccw_device_id, cu_type);
503 DEF_FIELD(symval, ccw_device_id, cu_model);
504 DEF_FIELD(symval, ccw_device_id, dev_type);
505 DEF_FIELD(symval, ccw_device_id, dev_model);
506
507 strcpy(alias, "ccw:");
508 ADD(alias, "t", match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
509 cu_type);
510 ADD(alias, "m", match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
511 cu_model);
512 ADD(alias, "dt", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
513 dev_type);
514 ADD(alias, "dm", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
515 dev_model);
516 add_wildcard(alias);
517 return 1;
518}
519
520/* looks like: "ap:tN" */
521static int do_ap_entry(const char *filename,
522 void *symval, char *alias)
523{
524 DEF_FIELD(symval, ap_device_id, dev_type);
525
526 sprintf(alias, "ap:t%02X*", dev_type);
527 return 1;
528}
529
530/* looks like: "css:tN" */
531static int do_css_entry(const char *filename,
532 void *symval, char *alias)
533{
534 DEF_FIELD(symval, css_device_id, type);
535
536 sprintf(alias, "css:t%01X", type);
537 return 1;
538}
539
540/* Looks like: "serio:tyNprNidNexN" */
541static int do_serio_entry(const char *filename,
542 void *symval, char *alias)
543{
544 DEF_FIELD(symval, serio_device_id, type);
545 DEF_FIELD(symval, serio_device_id, proto);
546 DEF_FIELD(symval, serio_device_id, id);
547 DEF_FIELD(symval, serio_device_id, extra);
548
549 strcpy(alias, "serio:");
550 ADD(alias, "ty", type != SERIO_ANY, type);
551 ADD(alias, "pr", proto != SERIO_ANY, proto);
552 ADD(alias, "id", id != SERIO_ANY, id);
553 ADD(alias, "ex", extra != SERIO_ANY, extra);
554
555 add_wildcard(alias);
556 return 1;
557}
558
559/* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
560 * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
561 *
562 * NOTE: Each driver should use one of the following : _HID, _CIDs
563 * or _CLS. Also, bb, ss, and pp can be substituted with ??
564 * as don't care byte.
565 */
566static int do_acpi_entry(const char *filename,
567 void *symval, char *alias)
568{
569 DEF_FIELD_ADDR(symval, acpi_device_id, id);
570 DEF_FIELD_ADDR(symval, acpi_device_id, cls);
571 DEF_FIELD_ADDR(symval, acpi_device_id, cls_msk);
572
573 if (id && strlen((const char *)*id))
574 sprintf(alias, "acpi*:%s:*", *id);
575 else if (cls) {
576 int i, byte_shift, cnt = 0;
577 unsigned int msk;
578
579 sprintf(&alias[cnt], "acpi*:");
580 cnt = 6;
581 for (i = 1; i <= 3; i++) {
582 byte_shift = 8 * (3-i);
583 msk = (*cls_msk >> byte_shift) & 0xFF;
584 if (msk)
585 sprintf(&alias[cnt], "%02x",
586 (*cls >> byte_shift) & 0xFF);
587 else
588 sprintf(&alias[cnt], "??");
589 cnt += 2;
590 }
591 sprintf(&alias[cnt], ":*");
592 }
593 return 1;
594}
595
596/* looks like: "pnp:dD" */
597static void do_pnp_device_entry(void *symval, unsigned long size,
598 struct module *mod)
599{
600 const unsigned long id_size = SIZE_pnp_device_id;
601 const unsigned int count = (size / id_size)-1;
602 unsigned int i;
603
604 device_id_check(mod->name, "pnp", size, id_size, symval);
605
606 for (i = 0; i < count; i++) {
607 DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
608 char acpi_id[sizeof(*id)];
609 int j;
610
611 buf_printf(&mod->dev_table_buf,
612 "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
613
614 /* fix broken pnp bus lowercasing */
615 for (j = 0; j < sizeof(acpi_id); j++)
616 acpi_id[j] = toupper((*id)[j]);
617 buf_printf(&mod->dev_table_buf,
618 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
619 }
620}
621
622/* looks like: "pnp:dD" for every device of the card */
623static void do_pnp_card_entries(void *symval, unsigned long size,
624 struct module *mod)
625{
626 const unsigned long id_size = SIZE_pnp_card_device_id;
627 const unsigned int count = (size / id_size)-1;
628 unsigned int i;
629
630 device_id_check(mod->name, "pnp", size, id_size, symval);
631
632 for (i = 0; i < count; i++) {
633 unsigned int j;
634 DEF_FIELD_ADDR(symval + i * id_size, pnp_card_device_id, devs);
635
636 for (j = 0; j < PNP_MAX_DEVICES; j++) {
637 const char *id = (char *)(*devs)[j].id;
638 int i2, j2;
639 int dup = 0;
640
641 if (!id[0])
642 break;
643
644 /* find duplicate, already added value */
645 for (i2 = 0; i2 < i && !dup; i2++) {
646 DEF_FIELD_ADDR_VAR(symval + i2 * id_size,
647 pnp_card_device_id,
648 devs, devs_dup);
649
650 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
651 const char *id2 =
652 (char *)(*devs_dup)[j2].id;
653
654 if (!id2[0])
655 break;
656
657 if (!strcmp(id, id2)) {
658 dup = 1;
659 break;
660 }
661 }
662 }
663
664 /* add an individual alias for every device entry */
665 if (!dup) {
666 char acpi_id[PNP_ID_LEN];
667 int k;
668
669 buf_printf(&mod->dev_table_buf,
670 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
671
672 /* fix broken pnp bus lowercasing */
673 for (k = 0; k < sizeof(acpi_id); k++)
674 acpi_id[k] = toupper(id[k]);
675 buf_printf(&mod->dev_table_buf,
676 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
677 }
678 }
679 }
680}
681
682/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
683static int do_pcmcia_entry(const char *filename,
684 void *symval, char *alias)
685{
686 unsigned int i;
687 DEF_FIELD(symval, pcmcia_device_id, match_flags);
688 DEF_FIELD(symval, pcmcia_device_id, manf_id);
689 DEF_FIELD(symval, pcmcia_device_id, card_id);
690 DEF_FIELD(symval, pcmcia_device_id, func_id);
691 DEF_FIELD(symval, pcmcia_device_id, function);
692 DEF_FIELD(symval, pcmcia_device_id, device_no);
693 DEF_FIELD_ADDR(symval, pcmcia_device_id, prod_id_hash);
694
695 for (i=0; i<4; i++) {
696 (*prod_id_hash)[i] = TO_NATIVE((*prod_id_hash)[i]);
697 }
698
699 strcpy(alias, "pcmcia:");
700 ADD(alias, "m", match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
701 manf_id);
702 ADD(alias, "c", match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
703 card_id);
704 ADD(alias, "f", match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
705 func_id);
706 ADD(alias, "fn", match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
707 function);
708 ADD(alias, "pfn", match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
709 device_no);
710 ADD(alias, "pa", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, (*prod_id_hash)[0]);
711 ADD(alias, "pb", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, (*prod_id_hash)[1]);
712 ADD(alias, "pc", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, (*prod_id_hash)[2]);
713 ADD(alias, "pd", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, (*prod_id_hash)[3]);
714
715 add_wildcard(alias);
716 return 1;
717}
718
719static int do_vio_entry(const char *filename, void *symval,
720 char *alias)
721{
722 char *tmp;
723 DEF_FIELD_ADDR(symval, vio_device_id, type);
724 DEF_FIELD_ADDR(symval, vio_device_id, compat);
725
726 sprintf(alias, "vio:T%sS%s", (*type)[0] ? *type : "*",
727 (*compat)[0] ? *compat : "*");
728
729 /* Replace all whitespace with underscores */
730 for (tmp = alias; tmp && *tmp; tmp++)
731 if (isspace (*tmp))
732 *tmp = '_';
733
734 add_wildcard(alias);
735 return 1;
736}
737
738static void do_input(char *alias,
739 kernel_ulong_t *arr, unsigned int min, unsigned int max)
740{
741 unsigned int i;
742
743 for (i = min / BITS_PER_LONG; i < max / BITS_PER_LONG + 1; i++)
744 arr[i] = TO_NATIVE(arr[i]);
745 for (i = min; i < max; i++)
746 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
747 sprintf(alias + strlen(alias), "%X,*", i);
748}
749
750/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
751static int do_input_entry(const char *filename, void *symval,
752 char *alias)
753{
754 DEF_FIELD(symval, input_device_id, flags);
755 DEF_FIELD(symval, input_device_id, bustype);
756 DEF_FIELD(symval, input_device_id, vendor);
757 DEF_FIELD(symval, input_device_id, product);
758 DEF_FIELD(symval, input_device_id, version);
759 DEF_FIELD_ADDR(symval, input_device_id, evbit);
760 DEF_FIELD_ADDR(symval, input_device_id, keybit);
761 DEF_FIELD_ADDR(symval, input_device_id, relbit);
762 DEF_FIELD_ADDR(symval, input_device_id, absbit);
763 DEF_FIELD_ADDR(symval, input_device_id, mscbit);
764 DEF_FIELD_ADDR(symval, input_device_id, ledbit);
765 DEF_FIELD_ADDR(symval, input_device_id, sndbit);
766 DEF_FIELD_ADDR(symval, input_device_id, ffbit);
767 DEF_FIELD_ADDR(symval, input_device_id, swbit);
768
769 sprintf(alias, "input:");
770
771 ADD(alias, "b", flags & INPUT_DEVICE_ID_MATCH_BUS, bustype);
772 ADD(alias, "v", flags & INPUT_DEVICE_ID_MATCH_VENDOR, vendor);
773 ADD(alias, "p", flags & INPUT_DEVICE_ID_MATCH_PRODUCT, product);
774 ADD(alias, "e", flags & INPUT_DEVICE_ID_MATCH_VERSION, version);
775
776 sprintf(alias + strlen(alias), "-e*");
777 if (flags & INPUT_DEVICE_ID_MATCH_EVBIT)
778 do_input(alias, *evbit, 0, INPUT_DEVICE_ID_EV_MAX);
779 sprintf(alias + strlen(alias), "k*");
780 if (flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
781 do_input(alias, *keybit,
782 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
783 INPUT_DEVICE_ID_KEY_MAX);
784 sprintf(alias + strlen(alias), "r*");
785 if (flags & INPUT_DEVICE_ID_MATCH_RELBIT)
786 do_input(alias, *relbit, 0, INPUT_DEVICE_ID_REL_MAX);
787 sprintf(alias + strlen(alias), "a*");
788 if (flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
789 do_input(alias, *absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
790 sprintf(alias + strlen(alias), "m*");
791 if (flags & INPUT_DEVICE_ID_MATCH_MSCIT)
792 do_input(alias, *mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
793 sprintf(alias + strlen(alias), "l*");
794 if (flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
795 do_input(alias, *ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
796 sprintf(alias + strlen(alias), "s*");
797 if (flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
798 do_input(alias, *sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
799 sprintf(alias + strlen(alias), "f*");
800 if (flags & INPUT_DEVICE_ID_MATCH_FFBIT)
801 do_input(alias, *ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
802 sprintf(alias + strlen(alias), "w*");
803 if (flags & INPUT_DEVICE_ID_MATCH_SWBIT)
804 do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
805 return 1;
806}
807
808static int do_eisa_entry(const char *filename, void *symval,
809 char *alias)
810{
811 DEF_FIELD_ADDR(symval, eisa_device_id, sig);
812 if (sig[0])
813 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", *sig);
814 else
815 strcat(alias, "*");
816 return 1;
817}
818
819/* Looks like: parisc:tNhvNrevNsvN */
820static int do_parisc_entry(const char *filename, void *symval,
821 char *alias)
822{
823 DEF_FIELD(symval, parisc_device_id, hw_type);
824 DEF_FIELD(symval, parisc_device_id, hversion);
825 DEF_FIELD(symval, parisc_device_id, hversion_rev);
826 DEF_FIELD(symval, parisc_device_id, sversion);
827
828 strcpy(alias, "parisc:");
829 ADD(alias, "t", hw_type != PA_HWTYPE_ANY_ID, hw_type);
830 ADD(alias, "hv", hversion != PA_HVERSION_ANY_ID, hversion);
831 ADD(alias, "rev", hversion_rev != PA_HVERSION_REV_ANY_ID, hversion_rev);
832 ADD(alias, "sv", sversion != PA_SVERSION_ANY_ID, sversion);
833
834 add_wildcard(alias);
835 return 1;
836}
837
838/* Looks like: sdio:cNvNdN. */
839static int do_sdio_entry(const char *filename,
840 void *symval, char *alias)
841{
842 DEF_FIELD(symval, sdio_device_id, class);
843 DEF_FIELD(symval, sdio_device_id, vendor);
844 DEF_FIELD(symval, sdio_device_id, device);
845
846 strcpy(alias, "sdio:");
847 ADD(alias, "c", class != (__u8)SDIO_ANY_ID, class);
848 ADD(alias, "v", vendor != (__u16)SDIO_ANY_ID, vendor);
849 ADD(alias, "d", device != (__u16)SDIO_ANY_ID, device);
850 add_wildcard(alias);
851 return 1;
852}
853
854/* Looks like: ssb:vNidNrevN. */
855static int do_ssb_entry(const char *filename,
856 void *symval, char *alias)
857{
858 DEF_FIELD(symval, ssb_device_id, vendor);
859 DEF_FIELD(symval, ssb_device_id, coreid);
860 DEF_FIELD(symval, ssb_device_id, revision);
861
862 strcpy(alias, "ssb:");
863 ADD(alias, "v", vendor != SSB_ANY_VENDOR, vendor);
864 ADD(alias, "id", coreid != SSB_ANY_ID, coreid);
865 ADD(alias, "rev", revision != SSB_ANY_REV, revision);
866 add_wildcard(alias);
867 return 1;
868}
869
870/* Looks like: bcma:mNidNrevNclN. */
871static int do_bcma_entry(const char *filename,
872 void *symval, char *alias)
873{
874 DEF_FIELD(symval, bcma_device_id, manuf);
875 DEF_FIELD(symval, bcma_device_id, id);
876 DEF_FIELD(symval, bcma_device_id, rev);
877 DEF_FIELD(symval, bcma_device_id, class);
878
879 strcpy(alias, "bcma:");
880 ADD(alias, "m", manuf != BCMA_ANY_MANUF, manuf);
881 ADD(alias, "id", id != BCMA_ANY_ID, id);
882 ADD(alias, "rev", rev != BCMA_ANY_REV, rev);
883 ADD(alias, "cl", class != BCMA_ANY_CLASS, class);
884 add_wildcard(alias);
885 return 1;
886}
887
888/* Looks like: virtio:dNvN */
889static int do_virtio_entry(const char *filename, void *symval,
890 char *alias)
891{
892 DEF_FIELD(symval, virtio_device_id, device);
893 DEF_FIELD(symval, virtio_device_id, vendor);
894
895 strcpy(alias, "virtio:");
896 ADD(alias, "d", device != VIRTIO_DEV_ANY_ID, device);
897 ADD(alias, "v", vendor != VIRTIO_DEV_ANY_ID, vendor);
898
899 add_wildcard(alias);
900 return 1;
901}
902
903/*
904 * Looks like: vmbus:guid
905 * Each byte of the guid will be represented by two hex characters
906 * in the name.
907 */
908
909static int do_vmbus_entry(const char *filename, void *symval,
910 char *alias)
911{
912 int i;
913 DEF_FIELD_ADDR(symval, hv_vmbus_device_id, guid);
914 char guid_name[(sizeof(*guid) + 1) * 2];
915
916 for (i = 0; i < (sizeof(*guid) * 2); i += 2)
917 sprintf(&guid_name[i], "%02x", TO_NATIVE((guid->b)[i/2]));
918
919 strcpy(alias, "vmbus:");
920 strcat(alias, guid_name);
921
922 return 1;
923}
924
925/* Looks like: rpmsg:S */
926static int do_rpmsg_entry(const char *filename, void *symval,
927 char *alias)
928{
929 DEF_FIELD_ADDR(symval, rpmsg_device_id, name);
930 sprintf(alias, RPMSG_DEVICE_MODALIAS_FMT, *name);
931
932 return 1;
933}
934
935/* Looks like: i2c:S */
936static int do_i2c_entry(const char *filename, void *symval,
937 char *alias)
938{
939 DEF_FIELD_ADDR(symval, i2c_device_id, name);
940 sprintf(alias, I2C_MODULE_PREFIX "%s", *name);
941
942 return 1;
943}
944
945static int do_i3c_entry(const char *filename, void *symval,
946 char *alias)
947{
948 DEF_FIELD(symval, i3c_device_id, match_flags);
949 DEF_FIELD(symval, i3c_device_id, dcr);
950 DEF_FIELD(symval, i3c_device_id, manuf_id);
951 DEF_FIELD(symval, i3c_device_id, part_id);
952 DEF_FIELD(symval, i3c_device_id, extra_info);
953
954 strcpy(alias, "i3c:");
955 ADD(alias, "dcr", match_flags & I3C_MATCH_DCR, dcr);
956 ADD(alias, "manuf", match_flags & I3C_MATCH_MANUF, manuf_id);
957 ADD(alias, "part", match_flags & I3C_MATCH_PART, part_id);
958 ADD(alias, "ext", match_flags & I3C_MATCH_EXTRA_INFO, extra_info);
959
960 return 1;
961}
962
963/* Looks like: spi:S */
964static int do_spi_entry(const char *filename, void *symval,
965 char *alias)
966{
967 DEF_FIELD_ADDR(symval, spi_device_id, name);
968 sprintf(alias, SPI_MODULE_PREFIX "%s", *name);
969
970 return 1;
971}
972
973static const struct dmifield {
974 const char *prefix;
975 int field;
976} dmi_fields[] = {
977 { "bvn", DMI_BIOS_VENDOR },
978 { "bvr", DMI_BIOS_VERSION },
979 { "bd", DMI_BIOS_DATE },
980 { "br", DMI_BIOS_RELEASE },
981 { "efr", DMI_EC_FIRMWARE_RELEASE },
982 { "svn", DMI_SYS_VENDOR },
983 { "pn", DMI_PRODUCT_NAME },
984 { "pvr", DMI_PRODUCT_VERSION },
985 { "rvn", DMI_BOARD_VENDOR },
986 { "rn", DMI_BOARD_NAME },
987 { "rvr", DMI_BOARD_VERSION },
988 { "cvn", DMI_CHASSIS_VENDOR },
989 { "ct", DMI_CHASSIS_TYPE },
990 { "cvr", DMI_CHASSIS_VERSION },
991 { NULL, DMI_NONE }
992};
993
994static void dmi_ascii_filter(char *d, const char *s)
995{
996 /* Filter out characters we don't want to see in the modalias string */
997 for (; *s; s++)
998 if (*s > ' ' && *s < 127 && *s != ':')
999 *(d++) = *s;
1000
1001 *d = 0;
1002}
1003
1004
1005static int do_dmi_entry(const char *filename, void *symval,
1006 char *alias)
1007{
1008 int i, j;
1009 DEF_FIELD_ADDR(symval, dmi_system_id, matches);
1010 sprintf(alias, "dmi*");
1011
1012 for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
1013 for (j = 0; j < 4; j++) {
1014 if ((*matches)[j].slot &&
1015 (*matches)[j].slot == dmi_fields[i].field) {
1016 sprintf(alias + strlen(alias), ":%s*",
1017 dmi_fields[i].prefix);
1018 dmi_ascii_filter(alias + strlen(alias),
1019 (*matches)[j].substr);
1020 strcat(alias, "*");
1021 }
1022 }
1023 }
1024
1025 strcat(alias, ":");
1026 return 1;
1027}
1028
1029static int do_platform_entry(const char *filename,
1030 void *symval, char *alias)
1031{
1032 DEF_FIELD_ADDR(symval, platform_device_id, name);
1033 sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
1034 return 1;
1035}
1036
1037static int do_mdio_entry(const char *filename,
1038 void *symval, char *alias)
1039{
1040 int i;
1041 DEF_FIELD(symval, mdio_device_id, phy_id);
1042 DEF_FIELD(symval, mdio_device_id, phy_id_mask);
1043
1044 alias += sprintf(alias, MDIO_MODULE_PREFIX);
1045
1046 for (i = 0; i < 32; i++) {
1047 if (!((phy_id_mask >> (31-i)) & 1))
1048 *(alias++) = '?';
1049 else if ((phy_id >> (31-i)) & 1)
1050 *(alias++) = '1';
1051 else
1052 *(alias++) = '0';
1053 }
1054
1055 /* Terminate the string */
1056 *alias = 0;
1057
1058 return 1;
1059}
1060
1061/* Looks like: zorro:iN. */
1062static int do_zorro_entry(const char *filename, void *symval,
1063 char *alias)
1064{
1065 DEF_FIELD(symval, zorro_device_id, id);
1066 strcpy(alias, "zorro:");
1067 ADD(alias, "i", id != ZORRO_WILDCARD, id);
1068 return 1;
1069}
1070
1071/* looks like: "pnp:dD" */
1072static int do_isapnp_entry(const char *filename,
1073 void *symval, char *alias)
1074{
1075 DEF_FIELD(symval, isapnp_device_id, vendor);
1076 DEF_FIELD(symval, isapnp_device_id, function);
1077 sprintf(alias, "pnp:d%c%c%c%x%x%x%x*",
1078 'A' + ((vendor >> 2) & 0x3f) - 1,
1079 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
1080 'A' + ((vendor >> 8) & 0x1f) - 1,
1081 (function >> 4) & 0x0f, function & 0x0f,
1082 (function >> 12) & 0x0f, (function >> 8) & 0x0f);
1083 return 1;
1084}
1085
1086/* Looks like: "ipack:fNvNdN". */
1087static int do_ipack_entry(const char *filename,
1088 void *symval, char *alias)
1089{
1090 DEF_FIELD(symval, ipack_device_id, format);
1091 DEF_FIELD(symval, ipack_device_id, vendor);
1092 DEF_FIELD(symval, ipack_device_id, device);
1093 strcpy(alias, "ipack:");
1094 ADD(alias, "f", format != IPACK_ANY_FORMAT, format);
1095 ADD(alias, "v", vendor != IPACK_ANY_ID, vendor);
1096 ADD(alias, "d", device != IPACK_ANY_ID, device);
1097 add_wildcard(alias);
1098 return 1;
1099}
1100
1101/*
1102 * Append a match expression for a single masked hex digit.
1103 * outp points to a pointer to the character at which to append.
1104 * *outp is updated on return to point just after the appended text,
1105 * to facilitate further appending.
1106 */
1107static void append_nibble_mask(char **outp,
1108 unsigned int nibble, unsigned int mask)
1109{
1110 char *p = *outp;
1111 unsigned int i;
1112
1113 switch (mask) {
1114 case 0:
1115 *p++ = '?';
1116 break;
1117
1118 case 0xf:
1119 p += sprintf(p, "%X", nibble);
1120 break;
1121
1122 default:
1123 /*
1124 * Dumbly emit a match pattern for all possible matching
1125 * digits. This could be improved in some cases using ranges,
1126 * but it has the advantage of being trivially correct, and is
1127 * often optimal.
1128 */
1129 *p++ = '[';
1130 for (i = 0; i < 0x10; i++)
1131 if ((i & mask) == nibble)
1132 p += sprintf(p, "%X", i);
1133 *p++ = ']';
1134 }
1135
1136 /* Ensure that the string remains NUL-terminated: */
1137 *p = '\0';
1138
1139 /* Advance the caller's end-of-string pointer: */
1140 *outp = p;
1141}
1142
1143/*
1144 * looks like: "amba:dN"
1145 *
1146 * N is exactly 8 digits, where each is an upper-case hex digit, or
1147 * a ? or [] pattern matching exactly one digit.
1148 */
1149static int do_amba_entry(const char *filename,
1150 void *symval, char *alias)
1151{
1152 unsigned int digit;
1153 char *p = alias;
1154 DEF_FIELD(symval, amba_id, id);
1155 DEF_FIELD(symval, amba_id, mask);
1156
1157 if ((id & mask) != id)
1158 fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: id=0x%08X, mask=0x%08X. Please fix this driver.\n",
1159 filename, id, mask);
1160
1161 p += sprintf(alias, "amba:d");
1162 for (digit = 0; digit < 8; digit++)
1163 append_nibble_mask(&p,
1164 (id >> (4 * (7 - digit))) & 0xf,
1165 (mask >> (4 * (7 - digit))) & 0xf);
1166
1167 return 1;
1168}
1169
1170/*
1171 * looks like: "mipscdmm:tN"
1172 *
1173 * N is exactly 2 digits, where each is an upper-case hex digit, or
1174 * a ? or [] pattern matching exactly one digit.
1175 */
1176static int do_mips_cdmm_entry(const char *filename,
1177 void *symval, char *alias)
1178{
1179 DEF_FIELD(symval, mips_cdmm_device_id, type);
1180
1181 sprintf(alias, "mipscdmm:t%02X*", type);
1182 return 1;
1183}
1184
1185/* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
1186 * All fields are numbers. It would be nicer to use strings for vendor
1187 * and feature, but getting those out of the build system here is too
1188 * complicated.
1189 */
1190
1191static int do_x86cpu_entry(const char *filename, void *symval,
1192 char *alias)
1193{
1194 DEF_FIELD(symval, x86_cpu_id, feature);
1195 DEF_FIELD(symval, x86_cpu_id, family);
1196 DEF_FIELD(symval, x86_cpu_id, model);
1197 DEF_FIELD(symval, x86_cpu_id, vendor);
1198
1199 strcpy(alias, "cpu:type:x86,");
1200 ADD(alias, "ven", vendor != X86_VENDOR_ANY, vendor);
1201 ADD(alias, "fam", family != X86_FAMILY_ANY, family);
1202 ADD(alias, "mod", model != X86_MODEL_ANY, model);
1203 strcat(alias, ":feature:*");
1204 if (feature != X86_FEATURE_ANY)
1205 sprintf(alias + strlen(alias), "%04X*", feature);
1206 return 1;
1207}
1208
1209/* LOOKS like cpu:type:*:feature:*FEAT* */
1210static int do_cpu_entry(const char *filename, void *symval, char *alias)
1211{
1212 DEF_FIELD(symval, cpu_feature, feature);
1213
1214 sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
1215 return 1;
1216}
1217
1218/* Looks like: mei:S:uuid:N:* */
1219static int do_mei_entry(const char *filename, void *symval,
1220 char *alias)
1221{
1222 DEF_FIELD_ADDR(symval, mei_cl_device_id, name);
1223 DEF_FIELD_ADDR(symval, mei_cl_device_id, uuid);
1224 DEF_FIELD(symval, mei_cl_device_id, version);
1225
1226 sprintf(alias, MEI_CL_MODULE_PREFIX);
1227 sprintf(alias + strlen(alias), "%s:", (*name)[0] ? *name : "*");
1228 add_uuid(alias, *uuid);
1229 ADD(alias, ":", version != MEI_CL_VERSION_ANY, version);
1230
1231 strcat(alias, ":*");
1232
1233 return 1;
1234}
1235
1236/* Looks like: rapidio:vNdNavNadN */
1237static int do_rio_entry(const char *filename,
1238 void *symval, char *alias)
1239{
1240 DEF_FIELD(symval, rio_device_id, did);
1241 DEF_FIELD(symval, rio_device_id, vid);
1242 DEF_FIELD(symval, rio_device_id, asm_did);
1243 DEF_FIELD(symval, rio_device_id, asm_vid);
1244
1245 strcpy(alias, "rapidio:");
1246 ADD(alias, "v", vid != RIO_ANY_ID, vid);
1247 ADD(alias, "d", did != RIO_ANY_ID, did);
1248 ADD(alias, "av", asm_vid != RIO_ANY_ID, asm_vid);
1249 ADD(alias, "ad", asm_did != RIO_ANY_ID, asm_did);
1250
1251 add_wildcard(alias);
1252 return 1;
1253}
1254
1255/* Looks like: ulpi:vNpN */
1256static int do_ulpi_entry(const char *filename, void *symval,
1257 char *alias)
1258{
1259 DEF_FIELD(symval, ulpi_device_id, vendor);
1260 DEF_FIELD(symval, ulpi_device_id, product);
1261
1262 sprintf(alias, "ulpi:v%04xp%04x", vendor, product);
1263
1264 return 1;
1265}
1266
1267/* Looks like: hdaudio:vNrNaN */
1268static int do_hda_entry(const char *filename, void *symval, char *alias)
1269{
1270 DEF_FIELD(symval, hda_device_id, vendor_id);
1271 DEF_FIELD(symval, hda_device_id, rev_id);
1272 DEF_FIELD(symval, hda_device_id, api_version);
1273
1274 strcpy(alias, "hdaudio:");
1275 ADD(alias, "v", vendor_id != 0, vendor_id);
1276 ADD(alias, "r", rev_id != 0, rev_id);
1277 ADD(alias, "a", api_version != 0, api_version);
1278
1279 add_wildcard(alias);
1280 return 1;
1281}
1282
1283/* Looks like: sdw:mNpNvNcN */
1284static int do_sdw_entry(const char *filename, void *symval, char *alias)
1285{
1286 DEF_FIELD(symval, sdw_device_id, mfg_id);
1287 DEF_FIELD(symval, sdw_device_id, part_id);
1288 DEF_FIELD(symval, sdw_device_id, sdw_version);
1289 DEF_FIELD(symval, sdw_device_id, class_id);
1290
1291 strcpy(alias, "sdw:");
1292 ADD(alias, "m", mfg_id != 0, mfg_id);
1293 ADD(alias, "p", part_id != 0, part_id);
1294 ADD(alias, "v", sdw_version != 0, sdw_version);
1295 ADD(alias, "c", class_id != 0, class_id);
1296
1297 add_wildcard(alias);
1298 return 1;
1299}
1300
1301/* Looks like: fsl-mc:vNdN */
1302static int do_fsl_mc_entry(const char *filename, void *symval,
1303 char *alias)
1304{
1305 DEF_FIELD(symval, fsl_mc_device_id, vendor);
1306 DEF_FIELD_ADDR(symval, fsl_mc_device_id, obj_type);
1307
1308 sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
1309 return 1;
1310}
1311
1312/* Looks like: tbsvc:kSpNvNrN */
1313static int do_tbsvc_entry(const char *filename, void *symval, char *alias)
1314{
1315 DEF_FIELD(symval, tb_service_id, match_flags);
1316 DEF_FIELD_ADDR(symval, tb_service_id, protocol_key);
1317 DEF_FIELD(symval, tb_service_id, protocol_id);
1318 DEF_FIELD(symval, tb_service_id, protocol_version);
1319 DEF_FIELD(symval, tb_service_id, protocol_revision);
1320
1321 strcpy(alias, "tbsvc:");
1322 if (match_flags & TBSVC_MATCH_PROTOCOL_KEY)
1323 sprintf(alias + strlen(alias), "k%s", *protocol_key);
1324 else
1325 strcat(alias + strlen(alias), "k*");
1326 ADD(alias, "p", match_flags & TBSVC_MATCH_PROTOCOL_ID, protocol_id);
1327 ADD(alias, "v", match_flags & TBSVC_MATCH_PROTOCOL_VERSION,
1328 protocol_version);
1329 ADD(alias, "r", match_flags & TBSVC_MATCH_PROTOCOL_REVISION,
1330 protocol_revision);
1331
1332 add_wildcard(alias);
1333 return 1;
1334}
1335
1336/* Looks like: typec:idNmN */
1337static int do_typec_entry(const char *filename, void *symval, char *alias)
1338{
1339 DEF_FIELD(symval, typec_device_id, svid);
1340 DEF_FIELD(symval, typec_device_id, mode);
1341
1342 sprintf(alias, "typec:id%04X", svid);
1343 ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
1344
1345 return 1;
1346}
1347
1348/* Looks like: tee:uuid */
1349static int do_tee_entry(const char *filename, void *symval, char *alias)
1350{
1351 DEF_FIELD_ADDR(symval, tee_client_device_id, uuid);
1352
1353 sprintf(alias, "tee:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
1354 uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],
1355 uuid->b[5], uuid->b[6], uuid->b[7], uuid->b[8], uuid->b[9],
1356 uuid->b[10], uuid->b[11], uuid->b[12], uuid->b[13], uuid->b[14],
1357 uuid->b[15]);
1358
1359 add_wildcard(alias);
1360 return 1;
1361}
1362
1363/* Looks like: wmi:guid */
1364static int do_wmi_entry(const char *filename, void *symval, char *alias)
1365{
1366 int len;
1367 DEF_FIELD_ADDR(symval, wmi_device_id, guid_string);
1368
1369 if (strlen(*guid_string) != UUID_STRING_LEN) {
1370 warn("Invalid WMI device id 'wmi:%s' in '%s'\n",
1371 *guid_string, filename);
1372 return 0;
1373 }
1374
1375 len = snprintf(alias, ALIAS_SIZE, WMI_MODULE_PREFIX "%s", *guid_string);
1376 if (len < 0 || len >= ALIAS_SIZE) {
1377 warn("Could not generate all MODULE_ALIAS's in '%s'\n",
1378 filename);
1379 return 0;
1380 }
1381 return 1;
1382}
1383
1384/* Looks like: mhi:S */
1385static int do_mhi_entry(const char *filename, void *symval, char *alias)
1386{
1387 DEF_FIELD_ADDR(symval, mhi_device_id, chan);
1388 sprintf(alias, MHI_DEVICE_MODALIAS_FMT, *chan);
1389 return 1;
1390}
1391
1392/* Looks like: mhi_ep:S */
1393static int do_mhi_ep_entry(const char *filename, void *symval, char *alias)
1394{
1395 DEF_FIELD_ADDR(symval, mhi_device_id, chan);
1396 sprintf(alias, MHI_EP_DEVICE_MODALIAS_FMT, *chan);
1397
1398 return 1;
1399}
1400
1401/* Looks like: ishtp:{guid} */
1402static int do_ishtp_entry(const char *filename, void *symval, char *alias)
1403{
1404 DEF_FIELD_ADDR(symval, ishtp_device_id, guid);
1405
1406 strcpy(alias, ISHTP_MODULE_PREFIX "{");
1407 add_guid(alias, *guid);
1408 strcat(alias, "}");
1409
1410 return 1;
1411}
1412
1413static int do_auxiliary_entry(const char *filename, void *symval, char *alias)
1414{
1415 DEF_FIELD_ADDR(symval, auxiliary_device_id, name);
1416 sprintf(alias, AUXILIARY_MODULE_PREFIX "%s", *name);
1417
1418 return 1;
1419}
1420
1421/*
1422 * Looks like: ssam:dNcNtNiNfN
1423 *
1424 * N is exactly 2 digits, where each is an upper-case hex digit.
1425 */
1426static int do_ssam_entry(const char *filename, void *symval, char *alias)
1427{
1428 DEF_FIELD(symval, ssam_device_id, match_flags);
1429 DEF_FIELD(symval, ssam_device_id, domain);
1430 DEF_FIELD(symval, ssam_device_id, category);
1431 DEF_FIELD(symval, ssam_device_id, target);
1432 DEF_FIELD(symval, ssam_device_id, instance);
1433 DEF_FIELD(symval, ssam_device_id, function);
1434
1435 sprintf(alias, "ssam:d%02Xc%02X", domain, category);
1436 ADD(alias, "t", match_flags & SSAM_MATCH_TARGET, target);
1437 ADD(alias, "i", match_flags & SSAM_MATCH_INSTANCE, instance);
1438 ADD(alias, "f", match_flags & SSAM_MATCH_FUNCTION, function);
1439
1440 return 1;
1441}
1442
1443/* Looks like: dfl:tNfN */
1444static int do_dfl_entry(const char *filename, void *symval, char *alias)
1445{
1446 DEF_FIELD(symval, dfl_device_id, type);
1447 DEF_FIELD(symval, dfl_device_id, feature_id);
1448
1449 sprintf(alias, "dfl:t%04Xf%04X", type, feature_id);
1450
1451 add_wildcard(alias);
1452 return 1;
1453}
1454
1455/* Looks like: cdx:vNdN */
1456static int do_cdx_entry(const char *filename, void *symval,
1457 char *alias)
1458{
1459 DEF_FIELD(symval, cdx_device_id, vendor);
1460 DEF_FIELD(symval, cdx_device_id, device);
1461 DEF_FIELD(symval, cdx_device_id, subvendor);
1462 DEF_FIELD(symval, cdx_device_id, subdevice);
1463 DEF_FIELD(symval, cdx_device_id, class);
1464 DEF_FIELD(symval, cdx_device_id, class_mask);
1465 DEF_FIELD(symval, cdx_device_id, override_only);
1466
1467 switch (override_only) {
1468 case 0:
1469 strcpy(alias, "cdx:");
1470 break;
1471 case CDX_ID_F_VFIO_DRIVER_OVERRIDE:
1472 strcpy(alias, "vfio_cdx:");
1473 break;
1474 default:
1475 warn("Unknown CDX driver_override alias %08X\n",
1476 override_only);
1477 return 0;
1478 }
1479
1480 ADD(alias, "v", vendor != CDX_ANY_ID, vendor);
1481 ADD(alias, "d", device != CDX_ANY_ID, device);
1482 ADD(alias, "sv", subvendor != CDX_ANY_ID, subvendor);
1483 ADD(alias, "sd", subdevice != CDX_ANY_ID, subdevice);
1484 ADD(alias, "c", class_mask == 0xFFFFFF, class);
1485
1486 return 1;
1487}
1488
1489static int do_vchiq_entry(const char *filename, void *symval, char *alias)
1490{
1491 DEF_FIELD_ADDR(symval, vchiq_device_id, name);
1492 sprintf(alias, "vchiq:%s", *name);
1493
1494 return 1;
1495}
1496
1497/* Does namelen bytes of name exactly match the symbol? */
1498static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1499{
1500 if (namelen != strlen(symbol))
1501 return false;
1502
1503 return memcmp(name, symbol, namelen) == 0;
1504}
1505
1506static void do_table(void *symval, unsigned long size,
1507 unsigned long id_size,
1508 const char *device_id,
1509 int (*do_entry)(const char *filename, void *symval, char *alias),
1510 struct module *mod)
1511{
1512 unsigned int i;
1513 char alias[ALIAS_SIZE];
1514
1515 device_id_check(mod->name, device_id, size, id_size, symval);
1516 /* Leave last one: it's the terminator. */
1517 size -= id_size;
1518
1519 for (i = 0; i < size; i += id_size) {
1520 if (do_entry(mod->name, symval+i, alias)) {
1521 buf_printf(&mod->dev_table_buf,
1522 "MODULE_ALIAS(\"%s\");\n", alias);
1523 }
1524 }
1525}
1526
1527static const struct devtable devtable[] = {
1528 {"hid", SIZE_hid_device_id, do_hid_entry},
1529 {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
1530 {"pci", SIZE_pci_device_id, do_pci_entry},
1531 {"ccw", SIZE_ccw_device_id, do_ccw_entry},
1532 {"ap", SIZE_ap_device_id, do_ap_entry},
1533 {"css", SIZE_css_device_id, do_css_entry},
1534 {"serio", SIZE_serio_device_id, do_serio_entry},
1535 {"acpi", SIZE_acpi_device_id, do_acpi_entry},
1536 {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
1537 {"vio", SIZE_vio_device_id, do_vio_entry},
1538 {"input", SIZE_input_device_id, do_input_entry},
1539 {"eisa", SIZE_eisa_device_id, do_eisa_entry},
1540 {"parisc", SIZE_parisc_device_id, do_parisc_entry},
1541 {"sdio", SIZE_sdio_device_id, do_sdio_entry},
1542 {"ssb", SIZE_ssb_device_id, do_ssb_entry},
1543 {"bcma", SIZE_bcma_device_id, do_bcma_entry},
1544 {"virtio", SIZE_virtio_device_id, do_virtio_entry},
1545 {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
1546 {"rpmsg", SIZE_rpmsg_device_id, do_rpmsg_entry},
1547 {"i2c", SIZE_i2c_device_id, do_i2c_entry},
1548 {"i3c", SIZE_i3c_device_id, do_i3c_entry},
1549 {"spi", SIZE_spi_device_id, do_spi_entry},
1550 {"dmi", SIZE_dmi_system_id, do_dmi_entry},
1551 {"platform", SIZE_platform_device_id, do_platform_entry},
1552 {"mdio", SIZE_mdio_device_id, do_mdio_entry},
1553 {"zorro", SIZE_zorro_device_id, do_zorro_entry},
1554 {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
1555 {"ipack", SIZE_ipack_device_id, do_ipack_entry},
1556 {"amba", SIZE_amba_id, do_amba_entry},
1557 {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
1558 {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
1559 {"cpu", SIZE_cpu_feature, do_cpu_entry},
1560 {"mei", SIZE_mei_cl_device_id, do_mei_entry},
1561 {"rapidio", SIZE_rio_device_id, do_rio_entry},
1562 {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
1563 {"hdaudio", SIZE_hda_device_id, do_hda_entry},
1564 {"sdw", SIZE_sdw_device_id, do_sdw_entry},
1565 {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
1566 {"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
1567 {"typec", SIZE_typec_device_id, do_typec_entry},
1568 {"tee", SIZE_tee_client_device_id, do_tee_entry},
1569 {"wmi", SIZE_wmi_device_id, do_wmi_entry},
1570 {"mhi", SIZE_mhi_device_id, do_mhi_entry},
1571 {"mhi_ep", SIZE_mhi_device_id, do_mhi_ep_entry},
1572 {"auxiliary", SIZE_auxiliary_device_id, do_auxiliary_entry},
1573 {"ssam", SIZE_ssam_device_id, do_ssam_entry},
1574 {"dfl", SIZE_dfl_device_id, do_dfl_entry},
1575 {"ishtp", SIZE_ishtp_device_id, do_ishtp_entry},
1576 {"cdx", SIZE_cdx_device_id, do_cdx_entry},
1577 {"vchiq", SIZE_vchiq_device_id, do_vchiq_entry},
1578};
1579
1580/* Create MODULE_ALIAS() statements.
1581 * At this time, we cannot write the actual output C source yet,
1582 * so we write into the mod->dev_table_buf buffer. */
1583void handle_moddevtable(struct module *mod, struct elf_info *info,
1584 Elf_Sym *sym, const char *symname)
1585{
1586 void *symval;
1587 char *zeros = NULL;
1588 const char *name, *identifier;
1589 unsigned int namelen;
1590
1591 /* We're looking for a section relative symbol */
1592 if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
1593 return;
1594
1595 /* We're looking for an object */
1596 if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
1597 return;
1598
1599 /* All our symbols are of form __mod_<name>__<identifier>_device_table. */
1600 if (strncmp(symname, "__mod_", strlen("__mod_")))
1601 return;
1602 name = symname + strlen("__mod_");
1603 namelen = strlen(name);
1604 if (namelen < strlen("_device_table"))
1605 return;
1606 if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
1607 return;
1608 identifier = strstr(name, "__");
1609 if (!identifier)
1610 return;
1611 namelen = identifier - name;
1612
1613 /* Handle all-NULL symbols allocated into .bss */
1614 if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
1615 zeros = calloc(1, sym->st_size);
1616 symval = zeros;
1617 } else {
1618 symval = sym_get_data(info, sym);
1619 }
1620
1621 /* First handle the "special" cases */
1622 if (sym_is(name, namelen, "usb"))
1623 do_usb_table(symval, sym->st_size, mod);
1624 else if (sym_is(name, namelen, "of"))
1625 do_of_table(symval, sym->st_size, mod);
1626 else if (sym_is(name, namelen, "pnp"))
1627 do_pnp_device_entry(symval, sym->st_size, mod);
1628 else if (sym_is(name, namelen, "pnp_card"))
1629 do_pnp_card_entries(symval, sym->st_size, mod);
1630 else {
1631 int i;
1632
1633 for (i = 0; i < ARRAY_SIZE(devtable); i++) {
1634 const struct devtable *p = &devtable[i];
1635
1636 if (sym_is(name, namelen, p->device_id)) {
1637 do_table(symval, sym->st_size, p->id_size,
1638 p->device_id, p->do_entry, mod);
1639 break;
1640 }
1641 }
1642 }
1643 free(zeros);
1644}
1645
1646/* Now add out buffered information to the generated C source */
1647void add_moddevtable(struct buffer *buf, struct module *mod)
1648{
1649 buf_printf(buf, "\n");
1650 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
1651 free(mod->dev_table_buf.p);
1652}
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#include "devicetable-offsets.h"
15
16/* We use the ELF typedefs for kernel_ulong_t but bite the bullet and
17 * use either stdint.h or inttypes.h for the rest. */
18#if KERNEL_ELFCLASS == ELFCLASS32
19typedef Elf32_Addr kernel_ulong_t;
20#define BITS_PER_LONG 32
21#else
22typedef Elf64_Addr kernel_ulong_t;
23#define BITS_PER_LONG 64
24#endif
25#ifdef __sun__
26#include <inttypes.h>
27#else
28#include <stdint.h>
29#endif
30
31#include <ctype.h>
32#include <stdbool.h>
33
34typedef uint32_t __u32;
35typedef uint16_t __u16;
36typedef unsigned char __u8;
37typedef struct {
38 __u8 b[16];
39} guid_t;
40
41/* backwards compatibility, don't use in new code */
42typedef struct {
43 __u8 b[16];
44} uuid_le;
45typedef struct {
46 __u8 b[16];
47} uuid_t;
48#define UUID_STRING_LEN 36
49
50/* Big exception to the "don't include kernel headers into userspace, which
51 * even potentially has different endianness and word sizes, since
52 * we handle those differences explicitly below */
53#include "../../include/linux/mod_devicetable.h"
54
55/* This array collects all instances that use the generic do_table */
56struct devtable {
57 const char *device_id; /* name of table, __mod_<name>__*_device_table. */
58 unsigned long id_size;
59 int (*do_entry)(const char *filename, void *symval, char *alias);
60};
61
62/* Size of alias provided to do_entry functions */
63#define ALIAS_SIZE 500
64
65/* Define a variable f that holds the value of field f of struct devid
66 * based at address m.
67 */
68#define DEF_FIELD(m, devid, f) \
69 typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f))
70
71/* Define a variable v that holds the address of field f of struct devid
72 * based at address m. Due to the way typeof works, for a field of type
73 * T[N] the variable has type T(*)[N], _not_ T*.
74 */
75#define DEF_FIELD_ADDR_VAR(m, devid, f, v) \
76 typeof(((struct devid *)0)->f) *v = ((m) + OFF_##devid##_##f)
77
78/* Define a variable f that holds the address of field f of struct devid
79 * based at address m. Due to the way typeof works, for a field of type
80 * T[N] the variable has type T(*)[N], _not_ T*.
81 */
82#define DEF_FIELD_ADDR(m, devid, f) \
83 DEF_FIELD_ADDR_VAR(m, devid, f, f)
84
85#define ADD(str, sep, cond, field) \
86do { \
87 strcat(str, sep); \
88 if (cond) \
89 sprintf(str + strlen(str), \
90 sizeof(field) == 1 ? "%02X" : \
91 sizeof(field) == 2 ? "%04X" : \
92 sizeof(field) == 4 ? "%08X" : "", \
93 field); \
94 else \
95 sprintf(str + strlen(str), "*"); \
96} while(0)
97
98/* End in a wildcard, for future extension */
99static inline void add_wildcard(char *str)
100{
101 int len = strlen(str);
102
103 if (str[len - 1] != '*')
104 strcat(str + len, "*");
105}
106
107static inline void add_uuid(char *str, uuid_le uuid)
108{
109 int len = strlen(str);
110
111 sprintf(str + len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
112 uuid.b[3], uuid.b[2], uuid.b[1], uuid.b[0],
113 uuid.b[5], uuid.b[4], uuid.b[7], uuid.b[6],
114 uuid.b[8], uuid.b[9], uuid.b[10], uuid.b[11],
115 uuid.b[12], uuid.b[13], uuid.b[14], uuid.b[15]);
116}
117
118/**
119 * Check that sizeof(device_id type) are consistent with size of section
120 * in .o file. If in-consistent then userspace and kernel does not agree
121 * on actual size which is a bug.
122 * Also verify that the final entry in the table is all zeros.
123 * Ignore both checks if build host differ from target host and size differs.
124 **/
125static void device_id_check(const char *modname, const char *device_id,
126 unsigned long size, unsigned long id_size,
127 void *symval)
128{
129 int i;
130
131 if (size % id_size || size < id_size) {
132 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
133 "of the size of "
134 "section __mod_%s__<identifier>_device_table=%lu.\n"
135 "Fix definition of struct %s_device_id "
136 "in mod_devicetable.h\n",
137 modname, device_id, id_size, device_id, size, device_id);
138 }
139 /* Verify last one is a terminator */
140 for (i = 0; i < id_size; i++ ) {
141 if (*(uint8_t*)(symval+size-id_size+i)) {
142 fprintf(stderr,"%s: struct %s_device_id is %lu bytes. "
143 "The last of %lu is:\n",
144 modname, device_id, id_size, size / id_size);
145 for (i = 0; i < id_size; i++ )
146 fprintf(stderr,"0x%02x ",
147 *(uint8_t*)(symval+size-id_size+i) );
148 fprintf(stderr,"\n");
149 fatal("%s: struct %s_device_id is not terminated "
150 "with a NULL entry!\n", modname, device_id);
151 }
152 }
153}
154
155/* USB is special because the bcdDevice can be matched against a numeric range */
156/* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
157static void do_usb_entry(void *symval,
158 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
159 unsigned char range_lo, unsigned char range_hi,
160 unsigned char max, struct module *mod)
161{
162 char alias[500];
163 DEF_FIELD(symval, usb_device_id, match_flags);
164 DEF_FIELD(symval, usb_device_id, idVendor);
165 DEF_FIELD(symval, usb_device_id, idProduct);
166 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
167 DEF_FIELD(symval, usb_device_id, bDeviceClass);
168 DEF_FIELD(symval, usb_device_id, bDeviceSubClass);
169 DEF_FIELD(symval, usb_device_id, bDeviceProtocol);
170 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
171 DEF_FIELD(symval, usb_device_id, bInterfaceSubClass);
172 DEF_FIELD(symval, usb_device_id, bInterfaceProtocol);
173 DEF_FIELD(symval, usb_device_id, bInterfaceNumber);
174
175 strcpy(alias, "usb:");
176 ADD(alias, "v", match_flags&USB_DEVICE_ID_MATCH_VENDOR,
177 idVendor);
178 ADD(alias, "p", match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
179 idProduct);
180
181 strcat(alias, "d");
182 if (bcdDevice_initial_digits)
183 sprintf(alias + strlen(alias), "%0*X",
184 bcdDevice_initial_digits, bcdDevice_initial);
185 if (range_lo == range_hi)
186 sprintf(alias + strlen(alias), "%X", range_lo);
187 else if (range_lo > 0 || range_hi < max) {
188 if (range_lo > 0x9 || range_hi < 0xA)
189 sprintf(alias + strlen(alias),
190 "[%X-%X]",
191 range_lo,
192 range_hi);
193 else {
194 sprintf(alias + strlen(alias),
195 range_lo < 0x9 ? "[%X-9" : "[%X",
196 range_lo);
197 sprintf(alias + strlen(alias),
198 range_hi > 0xA ? "A-%X]" : "%X]",
199 range_hi);
200 }
201 }
202 if (bcdDevice_initial_digits < (sizeof(bcdDevice_lo) * 2 - 1))
203 strcat(alias, "*");
204
205 ADD(alias, "dc", match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
206 bDeviceClass);
207 ADD(alias, "dsc", match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
208 bDeviceSubClass);
209 ADD(alias, "dp", match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
210 bDeviceProtocol);
211 ADD(alias, "ic", match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
212 bInterfaceClass);
213 ADD(alias, "isc", match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
214 bInterfaceSubClass);
215 ADD(alias, "ip", match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
216 bInterfaceProtocol);
217 ADD(alias, "in", match_flags&USB_DEVICE_ID_MATCH_INT_NUMBER,
218 bInterfaceNumber);
219
220 add_wildcard(alias);
221 buf_printf(&mod->dev_table_buf,
222 "MODULE_ALIAS(\"%s\");\n", alias);
223}
224
225/* Handles increment/decrement of BCD formatted integers */
226/* Returns the previous value, so it works like i++ or i-- */
227static unsigned int incbcd(unsigned int *bcd,
228 int inc,
229 unsigned char max,
230 size_t chars)
231{
232 unsigned int init = *bcd, i, j;
233 unsigned long long c, dec = 0;
234
235 /* If bcd is not in BCD format, just increment */
236 if (max > 0x9) {
237 *bcd += inc;
238 return init;
239 }
240
241 /* Convert BCD to Decimal */
242 for (i=0 ; i < chars ; i++) {
243 c = (*bcd >> (i << 2)) & 0xf;
244 c = c > 9 ? 9 : c; /* force to bcd just in case */
245 for (j=0 ; j < i ; j++)
246 c = c * 10;
247 dec += c;
248 }
249
250 /* Do our increment/decrement */
251 dec += inc;
252 *bcd = 0;
253
254 /* Convert back to BCD */
255 for (i=0 ; i < chars ; i++) {
256 for (c=1,j=0 ; j < i ; j++)
257 c = c * 10;
258 c = (dec / c) % 10;
259 *bcd += c << (i << 2);
260 }
261 return init;
262}
263
264static void do_usb_entry_multi(void *symval, struct module *mod)
265{
266 unsigned int devlo, devhi;
267 unsigned char chi, clo, max;
268 int ndigits;
269
270 DEF_FIELD(symval, usb_device_id, match_flags);
271 DEF_FIELD(symval, usb_device_id, idVendor);
272 DEF_FIELD(symval, usb_device_id, idProduct);
273 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
274 DEF_FIELD(symval, usb_device_id, bcdDevice_hi);
275 DEF_FIELD(symval, usb_device_id, bDeviceClass);
276 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
277
278 devlo = match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
279 bcdDevice_lo : 0x0U;
280 devhi = match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
281 bcdDevice_hi : ~0x0U;
282
283 /* Figure out if this entry is in bcd or hex format */
284 max = 0x9; /* Default to decimal format */
285 for (ndigits = 0 ; ndigits < sizeof(bcdDevice_lo) * 2 ; ndigits++) {
286 clo = (devlo >> (ndigits << 2)) & 0xf;
287 chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf;
288 if (clo > max || chi > max) {
289 max = 0xf;
290 break;
291 }
292 }
293
294 /*
295 * Some modules (visor) have empty slots as placeholder for
296 * run-time specification that results in catch-all alias
297 */
298 if (!(idVendor | idProduct | bDeviceClass | bInterfaceClass))
299 return;
300
301 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
302 for (ndigits = sizeof(bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
303 clo = devlo & 0xf;
304 chi = devhi & 0xf;
305 if (chi > max) /* If we are in bcd mode, truncate if necessary */
306 chi = max;
307 devlo >>= 4;
308 devhi >>= 4;
309
310 if (devlo == devhi || !ndigits) {
311 do_usb_entry(symval, devlo, ndigits, clo, chi, max, mod);
312 break;
313 }
314
315 if (clo > 0x0)
316 do_usb_entry(symval,
317 incbcd(&devlo, 1, max,
318 sizeof(bcdDevice_lo) * 2),
319 ndigits, clo, max, max, mod);
320
321 if (chi < max)
322 do_usb_entry(symval,
323 incbcd(&devhi, -1, max,
324 sizeof(bcdDevice_lo) * 2),
325 ndigits, 0x0, chi, max, mod);
326 }
327}
328
329static void do_usb_table(void *symval, unsigned long size,
330 struct module *mod)
331{
332 unsigned int i;
333 const unsigned long id_size = SIZE_usb_device_id;
334
335 device_id_check(mod->name, "usb", size, id_size, symval);
336
337 /* Leave last one: it's the terminator. */
338 size -= id_size;
339
340 for (i = 0; i < size; i += id_size)
341 do_usb_entry_multi(symval + i, mod);
342}
343
344static void do_of_entry_multi(void *symval, struct module *mod)
345{
346 char alias[500];
347 int len;
348 char *tmp;
349
350 DEF_FIELD_ADDR(symval, of_device_id, name);
351 DEF_FIELD_ADDR(symval, of_device_id, type);
352 DEF_FIELD_ADDR(symval, of_device_id, compatible);
353
354 len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*",
355 (*type)[0] ? *type : "*");
356
357 if ((*compatible)[0])
358 sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "",
359 *compatible);
360
361 /* Replace all whitespace with underscores */
362 for (tmp = alias; tmp && *tmp; tmp++)
363 if (isspace(*tmp))
364 *tmp = '_';
365
366 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
367 strcat(alias, "C");
368 add_wildcard(alias);
369 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
370}
371
372static void do_of_table(void *symval, unsigned long size,
373 struct module *mod)
374{
375 unsigned int i;
376 const unsigned long id_size = SIZE_of_device_id;
377
378 device_id_check(mod->name, "of", size, id_size, symval);
379
380 /* Leave last one: it's the terminator. */
381 size -= id_size;
382
383 for (i = 0; i < size; i += id_size)
384 do_of_entry_multi(symval + i, mod);
385}
386
387/* Looks like: hid:bNvNpN */
388static int do_hid_entry(const char *filename,
389 void *symval, char *alias)
390{
391 DEF_FIELD(symval, hid_device_id, bus);
392 DEF_FIELD(symval, hid_device_id, group);
393 DEF_FIELD(symval, hid_device_id, vendor);
394 DEF_FIELD(symval, hid_device_id, product);
395
396 sprintf(alias, "hid:");
397 ADD(alias, "b", bus != HID_BUS_ANY, bus);
398 ADD(alias, "g", group != HID_GROUP_ANY, group);
399 ADD(alias, "v", vendor != HID_ANY_ID, vendor);
400 ADD(alias, "p", product != HID_ANY_ID, product);
401
402 return 1;
403}
404
405/* Looks like: ieee1394:venNmoNspNverN */
406static int do_ieee1394_entry(const char *filename,
407 void *symval, char *alias)
408{
409 DEF_FIELD(symval, ieee1394_device_id, match_flags);
410 DEF_FIELD(symval, ieee1394_device_id, vendor_id);
411 DEF_FIELD(symval, ieee1394_device_id, model_id);
412 DEF_FIELD(symval, ieee1394_device_id, specifier_id);
413 DEF_FIELD(symval, ieee1394_device_id, version);
414
415 strcpy(alias, "ieee1394:");
416 ADD(alias, "ven", match_flags & IEEE1394_MATCH_VENDOR_ID,
417 vendor_id);
418 ADD(alias, "mo", match_flags & IEEE1394_MATCH_MODEL_ID,
419 model_id);
420 ADD(alias, "sp", match_flags & IEEE1394_MATCH_SPECIFIER_ID,
421 specifier_id);
422 ADD(alias, "ver", match_flags & IEEE1394_MATCH_VERSION,
423 version);
424
425 add_wildcard(alias);
426 return 1;
427}
428
429/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
430static int do_pci_entry(const char *filename,
431 void *symval, char *alias)
432{
433 /* Class field can be divided into these three. */
434 unsigned char baseclass, subclass, interface,
435 baseclass_mask, subclass_mask, interface_mask;
436
437 DEF_FIELD(symval, pci_device_id, vendor);
438 DEF_FIELD(symval, pci_device_id, device);
439 DEF_FIELD(symval, pci_device_id, subvendor);
440 DEF_FIELD(symval, pci_device_id, subdevice);
441 DEF_FIELD(symval, pci_device_id, class);
442 DEF_FIELD(symval, pci_device_id, class_mask);
443
444 strcpy(alias, "pci:");
445 ADD(alias, "v", vendor != PCI_ANY_ID, vendor);
446 ADD(alias, "d", device != PCI_ANY_ID, device);
447 ADD(alias, "sv", subvendor != PCI_ANY_ID, subvendor);
448 ADD(alias, "sd", subdevice != PCI_ANY_ID, subdevice);
449
450 baseclass = (class) >> 16;
451 baseclass_mask = (class_mask) >> 16;
452 subclass = (class) >> 8;
453 subclass_mask = (class_mask) >> 8;
454 interface = class;
455 interface_mask = class_mask;
456
457 if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
458 || (subclass_mask != 0 && subclass_mask != 0xFF)
459 || (interface_mask != 0 && interface_mask != 0xFF)) {
460 warn("Can't handle masks in %s:%04X\n",
461 filename, class_mask);
462 return 0;
463 }
464
465 ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
466 ADD(alias, "sc", subclass_mask == 0xFF, subclass);
467 ADD(alias, "i", interface_mask == 0xFF, interface);
468 add_wildcard(alias);
469 return 1;
470}
471
472/* looks like: "ccw:tNmNdtNdmN" */
473static int do_ccw_entry(const char *filename,
474 void *symval, char *alias)
475{
476 DEF_FIELD(symval, ccw_device_id, match_flags);
477 DEF_FIELD(symval, ccw_device_id, cu_type);
478 DEF_FIELD(symval, ccw_device_id, cu_model);
479 DEF_FIELD(symval, ccw_device_id, dev_type);
480 DEF_FIELD(symval, ccw_device_id, dev_model);
481
482 strcpy(alias, "ccw:");
483 ADD(alias, "t", match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
484 cu_type);
485 ADD(alias, "m", match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
486 cu_model);
487 ADD(alias, "dt", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
488 dev_type);
489 ADD(alias, "dm", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
490 dev_model);
491 add_wildcard(alias);
492 return 1;
493}
494
495/* looks like: "ap:tN" */
496static int do_ap_entry(const char *filename,
497 void *symval, char *alias)
498{
499 DEF_FIELD(symval, ap_device_id, dev_type);
500
501 sprintf(alias, "ap:t%02X*", dev_type);
502 return 1;
503}
504
505/* looks like: "css:tN" */
506static int do_css_entry(const char *filename,
507 void *symval, char *alias)
508{
509 DEF_FIELD(symval, css_device_id, type);
510
511 sprintf(alias, "css:t%01X", type);
512 return 1;
513}
514
515/* Looks like: "serio:tyNprNidNexN" */
516static int do_serio_entry(const char *filename,
517 void *symval, char *alias)
518{
519 DEF_FIELD(symval, serio_device_id, type);
520 DEF_FIELD(symval, serio_device_id, proto);
521 DEF_FIELD(symval, serio_device_id, id);
522 DEF_FIELD(symval, serio_device_id, extra);
523
524 strcpy(alias, "serio:");
525 ADD(alias, "ty", type != SERIO_ANY, type);
526 ADD(alias, "pr", proto != SERIO_ANY, proto);
527 ADD(alias, "id", id != SERIO_ANY, id);
528 ADD(alias, "ex", extra != SERIO_ANY, extra);
529
530 add_wildcard(alias);
531 return 1;
532}
533
534/* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
535 * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
536 *
537 * NOTE: Each driver should use one of the following : _HID, _CIDs
538 * or _CLS. Also, bb, ss, and pp can be substituted with ??
539 * as don't care byte.
540 */
541static int do_acpi_entry(const char *filename,
542 void *symval, char *alias)
543{
544 DEF_FIELD_ADDR(symval, acpi_device_id, id);
545 DEF_FIELD_ADDR(symval, acpi_device_id, cls);
546 DEF_FIELD_ADDR(symval, acpi_device_id, cls_msk);
547
548 if (id && strlen((const char *)*id))
549 sprintf(alias, "acpi*:%s:*", *id);
550 else if (cls) {
551 int i, byte_shift, cnt = 0;
552 unsigned int msk;
553
554 sprintf(&alias[cnt], "acpi*:");
555 cnt = 6;
556 for (i = 1; i <= 3; i++) {
557 byte_shift = 8 * (3-i);
558 msk = (*cls_msk >> byte_shift) & 0xFF;
559 if (msk)
560 sprintf(&alias[cnt], "%02x",
561 (*cls >> byte_shift) & 0xFF);
562 else
563 sprintf(&alias[cnt], "??");
564 cnt += 2;
565 }
566 sprintf(&alias[cnt], ":*");
567 }
568 return 1;
569}
570
571/* looks like: "pnp:dD" */
572static void do_pnp_device_entry(void *symval, unsigned long size,
573 struct module *mod)
574{
575 const unsigned long id_size = SIZE_pnp_device_id;
576 const unsigned int count = (size / id_size)-1;
577 unsigned int i;
578
579 device_id_check(mod->name, "pnp", size, id_size, symval);
580
581 for (i = 0; i < count; i++) {
582 DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
583 char acpi_id[sizeof(*id)];
584 int j;
585
586 buf_printf(&mod->dev_table_buf,
587 "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
588
589 /* fix broken pnp bus lowercasing */
590 for (j = 0; j < sizeof(acpi_id); j++)
591 acpi_id[j] = toupper((*id)[j]);
592 buf_printf(&mod->dev_table_buf,
593 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
594 }
595}
596
597/* looks like: "pnp:dD" for every device of the card */
598static void do_pnp_card_entries(void *symval, unsigned long size,
599 struct module *mod)
600{
601 const unsigned long id_size = SIZE_pnp_card_device_id;
602 const unsigned int count = (size / id_size)-1;
603 unsigned int i;
604
605 device_id_check(mod->name, "pnp", size, id_size, symval);
606
607 for (i = 0; i < count; i++) {
608 unsigned int j;
609 DEF_FIELD_ADDR(symval + i * id_size, pnp_card_device_id, devs);
610
611 for (j = 0; j < PNP_MAX_DEVICES; j++) {
612 const char *id = (char *)(*devs)[j].id;
613 int i2, j2;
614 int dup = 0;
615
616 if (!id[0])
617 break;
618
619 /* find duplicate, already added value */
620 for (i2 = 0; i2 < i && !dup; i2++) {
621 DEF_FIELD_ADDR_VAR(symval + i2 * id_size,
622 pnp_card_device_id,
623 devs, devs_dup);
624
625 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
626 const char *id2 =
627 (char *)(*devs_dup)[j2].id;
628
629 if (!id2[0])
630 break;
631
632 if (!strcmp(id, id2)) {
633 dup = 1;
634 break;
635 }
636 }
637 }
638
639 /* add an individual alias for every device entry */
640 if (!dup) {
641 char acpi_id[PNP_ID_LEN];
642 int k;
643
644 buf_printf(&mod->dev_table_buf,
645 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
646
647 /* fix broken pnp bus lowercasing */
648 for (k = 0; k < sizeof(acpi_id); k++)
649 acpi_id[k] = toupper(id[k]);
650 buf_printf(&mod->dev_table_buf,
651 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
652 }
653 }
654 }
655}
656
657/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
658static int do_pcmcia_entry(const char *filename,
659 void *symval, char *alias)
660{
661 unsigned int i;
662 DEF_FIELD(symval, pcmcia_device_id, match_flags);
663 DEF_FIELD(symval, pcmcia_device_id, manf_id);
664 DEF_FIELD(symval, pcmcia_device_id, card_id);
665 DEF_FIELD(symval, pcmcia_device_id, func_id);
666 DEF_FIELD(symval, pcmcia_device_id, function);
667 DEF_FIELD(symval, pcmcia_device_id, device_no);
668 DEF_FIELD_ADDR(symval, pcmcia_device_id, prod_id_hash);
669
670 for (i=0; i<4; i++) {
671 (*prod_id_hash)[i] = TO_NATIVE((*prod_id_hash)[i]);
672 }
673
674 strcpy(alias, "pcmcia:");
675 ADD(alias, "m", match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
676 manf_id);
677 ADD(alias, "c", match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
678 card_id);
679 ADD(alias, "f", match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
680 func_id);
681 ADD(alias, "fn", match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
682 function);
683 ADD(alias, "pfn", match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
684 device_no);
685 ADD(alias, "pa", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, (*prod_id_hash)[0]);
686 ADD(alias, "pb", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, (*prod_id_hash)[1]);
687 ADD(alias, "pc", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, (*prod_id_hash)[2]);
688 ADD(alias, "pd", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, (*prod_id_hash)[3]);
689
690 add_wildcard(alias);
691 return 1;
692}
693
694static int do_vio_entry(const char *filename, void *symval,
695 char *alias)
696{
697 char *tmp;
698 DEF_FIELD_ADDR(symval, vio_device_id, type);
699 DEF_FIELD_ADDR(symval, vio_device_id, compat);
700
701 sprintf(alias, "vio:T%sS%s", (*type)[0] ? *type : "*",
702 (*compat)[0] ? *compat : "*");
703
704 /* Replace all whitespace with underscores */
705 for (tmp = alias; tmp && *tmp; tmp++)
706 if (isspace (*tmp))
707 *tmp = '_';
708
709 add_wildcard(alias);
710 return 1;
711}
712
713#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
714
715static void do_input(char *alias,
716 kernel_ulong_t *arr, unsigned int min, unsigned int max)
717{
718 unsigned int i;
719
720 for (i = min / BITS_PER_LONG; i < max / BITS_PER_LONG + 1; i++)
721 arr[i] = TO_NATIVE(arr[i]);
722 for (i = min; i < max; i++)
723 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
724 sprintf(alias + strlen(alias), "%X,*", i);
725}
726
727/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
728static int do_input_entry(const char *filename, void *symval,
729 char *alias)
730{
731 DEF_FIELD(symval, input_device_id, flags);
732 DEF_FIELD(symval, input_device_id, bustype);
733 DEF_FIELD(symval, input_device_id, vendor);
734 DEF_FIELD(symval, input_device_id, product);
735 DEF_FIELD(symval, input_device_id, version);
736 DEF_FIELD_ADDR(symval, input_device_id, evbit);
737 DEF_FIELD_ADDR(symval, input_device_id, keybit);
738 DEF_FIELD_ADDR(symval, input_device_id, relbit);
739 DEF_FIELD_ADDR(symval, input_device_id, absbit);
740 DEF_FIELD_ADDR(symval, input_device_id, mscbit);
741 DEF_FIELD_ADDR(symval, input_device_id, ledbit);
742 DEF_FIELD_ADDR(symval, input_device_id, sndbit);
743 DEF_FIELD_ADDR(symval, input_device_id, ffbit);
744 DEF_FIELD_ADDR(symval, input_device_id, swbit);
745
746 sprintf(alias, "input:");
747
748 ADD(alias, "b", flags & INPUT_DEVICE_ID_MATCH_BUS, bustype);
749 ADD(alias, "v", flags & INPUT_DEVICE_ID_MATCH_VENDOR, vendor);
750 ADD(alias, "p", flags & INPUT_DEVICE_ID_MATCH_PRODUCT, product);
751 ADD(alias, "e", flags & INPUT_DEVICE_ID_MATCH_VERSION, version);
752
753 sprintf(alias + strlen(alias), "-e*");
754 if (flags & INPUT_DEVICE_ID_MATCH_EVBIT)
755 do_input(alias, *evbit, 0, INPUT_DEVICE_ID_EV_MAX);
756 sprintf(alias + strlen(alias), "k*");
757 if (flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
758 do_input(alias, *keybit,
759 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
760 INPUT_DEVICE_ID_KEY_MAX);
761 sprintf(alias + strlen(alias), "r*");
762 if (flags & INPUT_DEVICE_ID_MATCH_RELBIT)
763 do_input(alias, *relbit, 0, INPUT_DEVICE_ID_REL_MAX);
764 sprintf(alias + strlen(alias), "a*");
765 if (flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
766 do_input(alias, *absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
767 sprintf(alias + strlen(alias), "m*");
768 if (flags & INPUT_DEVICE_ID_MATCH_MSCIT)
769 do_input(alias, *mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
770 sprintf(alias + strlen(alias), "l*");
771 if (flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
772 do_input(alias, *ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
773 sprintf(alias + strlen(alias), "s*");
774 if (flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
775 do_input(alias, *sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
776 sprintf(alias + strlen(alias), "f*");
777 if (flags & INPUT_DEVICE_ID_MATCH_FFBIT)
778 do_input(alias, *ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
779 sprintf(alias + strlen(alias), "w*");
780 if (flags & INPUT_DEVICE_ID_MATCH_SWBIT)
781 do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
782 return 1;
783}
784
785static int do_eisa_entry(const char *filename, void *symval,
786 char *alias)
787{
788 DEF_FIELD_ADDR(symval, eisa_device_id, sig);
789 if (sig[0])
790 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", *sig);
791 else
792 strcat(alias, "*");
793 return 1;
794}
795
796/* Looks like: parisc:tNhvNrevNsvN */
797static int do_parisc_entry(const char *filename, void *symval,
798 char *alias)
799{
800 DEF_FIELD(symval, parisc_device_id, hw_type);
801 DEF_FIELD(symval, parisc_device_id, hversion);
802 DEF_FIELD(symval, parisc_device_id, hversion_rev);
803 DEF_FIELD(symval, parisc_device_id, sversion);
804
805 strcpy(alias, "parisc:");
806 ADD(alias, "t", hw_type != PA_HWTYPE_ANY_ID, hw_type);
807 ADD(alias, "hv", hversion != PA_HVERSION_ANY_ID, hversion);
808 ADD(alias, "rev", hversion_rev != PA_HVERSION_REV_ANY_ID, hversion_rev);
809 ADD(alias, "sv", sversion != PA_SVERSION_ANY_ID, sversion);
810
811 add_wildcard(alias);
812 return 1;
813}
814
815/* Looks like: sdio:cNvNdN. */
816static int do_sdio_entry(const char *filename,
817 void *symval, char *alias)
818{
819 DEF_FIELD(symval, sdio_device_id, class);
820 DEF_FIELD(symval, sdio_device_id, vendor);
821 DEF_FIELD(symval, sdio_device_id, device);
822
823 strcpy(alias, "sdio:");
824 ADD(alias, "c", class != (__u8)SDIO_ANY_ID, class);
825 ADD(alias, "v", vendor != (__u16)SDIO_ANY_ID, vendor);
826 ADD(alias, "d", device != (__u16)SDIO_ANY_ID, device);
827 add_wildcard(alias);
828 return 1;
829}
830
831/* Looks like: ssb:vNidNrevN. */
832static int do_ssb_entry(const char *filename,
833 void *symval, char *alias)
834{
835 DEF_FIELD(symval, ssb_device_id, vendor);
836 DEF_FIELD(symval, ssb_device_id, coreid);
837 DEF_FIELD(symval, ssb_device_id, revision);
838
839 strcpy(alias, "ssb:");
840 ADD(alias, "v", vendor != SSB_ANY_VENDOR, vendor);
841 ADD(alias, "id", coreid != SSB_ANY_ID, coreid);
842 ADD(alias, "rev", revision != SSB_ANY_REV, revision);
843 add_wildcard(alias);
844 return 1;
845}
846
847/* Looks like: bcma:mNidNrevNclN. */
848static int do_bcma_entry(const char *filename,
849 void *symval, char *alias)
850{
851 DEF_FIELD(symval, bcma_device_id, manuf);
852 DEF_FIELD(symval, bcma_device_id, id);
853 DEF_FIELD(symval, bcma_device_id, rev);
854 DEF_FIELD(symval, bcma_device_id, class);
855
856 strcpy(alias, "bcma:");
857 ADD(alias, "m", manuf != BCMA_ANY_MANUF, manuf);
858 ADD(alias, "id", id != BCMA_ANY_ID, id);
859 ADD(alias, "rev", rev != BCMA_ANY_REV, rev);
860 ADD(alias, "cl", class != BCMA_ANY_CLASS, class);
861 add_wildcard(alias);
862 return 1;
863}
864
865/* Looks like: virtio:dNvN */
866static int do_virtio_entry(const char *filename, void *symval,
867 char *alias)
868{
869 DEF_FIELD(symval, virtio_device_id, device);
870 DEF_FIELD(symval, virtio_device_id, vendor);
871
872 strcpy(alias, "virtio:");
873 ADD(alias, "d", device != VIRTIO_DEV_ANY_ID, device);
874 ADD(alias, "v", vendor != VIRTIO_DEV_ANY_ID, vendor);
875
876 add_wildcard(alias);
877 return 1;
878}
879
880/*
881 * Looks like: vmbus:guid
882 * Each byte of the guid will be represented by two hex characters
883 * in the name.
884 */
885
886static int do_vmbus_entry(const char *filename, void *symval,
887 char *alias)
888{
889 int i;
890 DEF_FIELD_ADDR(symval, hv_vmbus_device_id, guid);
891 char guid_name[(sizeof(*guid) + 1) * 2];
892
893 for (i = 0; i < (sizeof(*guid) * 2); i += 2)
894 sprintf(&guid_name[i], "%02x", TO_NATIVE((guid->b)[i/2]));
895
896 strcpy(alias, "vmbus:");
897 strcat(alias, guid_name);
898
899 return 1;
900}
901
902/* Looks like: rpmsg:S */
903static int do_rpmsg_entry(const char *filename, void *symval,
904 char *alias)
905{
906 DEF_FIELD_ADDR(symval, rpmsg_device_id, name);
907 sprintf(alias, RPMSG_DEVICE_MODALIAS_FMT, *name);
908
909 return 1;
910}
911
912/* Looks like: i2c:S */
913static int do_i2c_entry(const char *filename, void *symval,
914 char *alias)
915{
916 DEF_FIELD_ADDR(symval, i2c_device_id, name);
917 sprintf(alias, I2C_MODULE_PREFIX "%s", *name);
918
919 return 1;
920}
921
922/* Looks like: spi:S */
923static int do_spi_entry(const char *filename, void *symval,
924 char *alias)
925{
926 DEF_FIELD_ADDR(symval, spi_device_id, name);
927 sprintf(alias, SPI_MODULE_PREFIX "%s", *name);
928
929 return 1;
930}
931
932static const struct dmifield {
933 const char *prefix;
934 int field;
935} dmi_fields[] = {
936 { "bvn", DMI_BIOS_VENDOR },
937 { "bvr", DMI_BIOS_VERSION },
938 { "bd", DMI_BIOS_DATE },
939 { "svn", DMI_SYS_VENDOR },
940 { "pn", DMI_PRODUCT_NAME },
941 { "pvr", DMI_PRODUCT_VERSION },
942 { "rvn", DMI_BOARD_VENDOR },
943 { "rn", DMI_BOARD_NAME },
944 { "rvr", DMI_BOARD_VERSION },
945 { "cvn", DMI_CHASSIS_VENDOR },
946 { "ct", DMI_CHASSIS_TYPE },
947 { "cvr", DMI_CHASSIS_VERSION },
948 { NULL, DMI_NONE }
949};
950
951static void dmi_ascii_filter(char *d, const char *s)
952{
953 /* Filter out characters we don't want to see in the modalias string */
954 for (; *s; s++)
955 if (*s > ' ' && *s < 127 && *s != ':')
956 *(d++) = *s;
957
958 *d = 0;
959}
960
961
962static int do_dmi_entry(const char *filename, void *symval,
963 char *alias)
964{
965 int i, j;
966 DEF_FIELD_ADDR(symval, dmi_system_id, matches);
967 sprintf(alias, "dmi*");
968
969 for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
970 for (j = 0; j < 4; j++) {
971 if ((*matches)[j].slot &&
972 (*matches)[j].slot == dmi_fields[i].field) {
973 sprintf(alias + strlen(alias), ":%s*",
974 dmi_fields[i].prefix);
975 dmi_ascii_filter(alias + strlen(alias),
976 (*matches)[j].substr);
977 strcat(alias, "*");
978 }
979 }
980 }
981
982 strcat(alias, ":");
983 return 1;
984}
985
986static int do_platform_entry(const char *filename,
987 void *symval, char *alias)
988{
989 DEF_FIELD_ADDR(symval, platform_device_id, name);
990 sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
991 return 1;
992}
993
994static int do_mdio_entry(const char *filename,
995 void *symval, char *alias)
996{
997 int i;
998 DEF_FIELD(symval, mdio_device_id, phy_id);
999 DEF_FIELD(symval, mdio_device_id, phy_id_mask);
1000
1001 alias += sprintf(alias, MDIO_MODULE_PREFIX);
1002
1003 for (i = 0; i < 32; i++) {
1004 if (!((phy_id_mask >> (31-i)) & 1))
1005 *(alias++) = '?';
1006 else if ((phy_id >> (31-i)) & 1)
1007 *(alias++) = '1';
1008 else
1009 *(alias++) = '0';
1010 }
1011
1012 /* Terminate the string */
1013 *alias = 0;
1014
1015 return 1;
1016}
1017
1018/* Looks like: zorro:iN. */
1019static int do_zorro_entry(const char *filename, void *symval,
1020 char *alias)
1021{
1022 DEF_FIELD(symval, zorro_device_id, id);
1023 strcpy(alias, "zorro:");
1024 ADD(alias, "i", id != ZORRO_WILDCARD, id);
1025 return 1;
1026}
1027
1028/* looks like: "pnp:dD" */
1029static int do_isapnp_entry(const char *filename,
1030 void *symval, char *alias)
1031{
1032 DEF_FIELD(symval, isapnp_device_id, vendor);
1033 DEF_FIELD(symval, isapnp_device_id, function);
1034 sprintf(alias, "pnp:d%c%c%c%x%x%x%x*",
1035 'A' + ((vendor >> 2) & 0x3f) - 1,
1036 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
1037 'A' + ((vendor >> 8) & 0x1f) - 1,
1038 (function >> 4) & 0x0f, function & 0x0f,
1039 (function >> 12) & 0x0f, (function >> 8) & 0x0f);
1040 return 1;
1041}
1042
1043/* Looks like: "ipack:fNvNdN". */
1044static int do_ipack_entry(const char *filename,
1045 void *symval, char *alias)
1046{
1047 DEF_FIELD(symval, ipack_device_id, format);
1048 DEF_FIELD(symval, ipack_device_id, vendor);
1049 DEF_FIELD(symval, ipack_device_id, device);
1050 strcpy(alias, "ipack:");
1051 ADD(alias, "f", format != IPACK_ANY_FORMAT, format);
1052 ADD(alias, "v", vendor != IPACK_ANY_ID, vendor);
1053 ADD(alias, "d", device != IPACK_ANY_ID, device);
1054 add_wildcard(alias);
1055 return 1;
1056}
1057
1058/*
1059 * Append a match expression for a single masked hex digit.
1060 * outp points to a pointer to the character at which to append.
1061 * *outp is updated on return to point just after the appended text,
1062 * to facilitate further appending.
1063 */
1064static void append_nibble_mask(char **outp,
1065 unsigned int nibble, unsigned int mask)
1066{
1067 char *p = *outp;
1068 unsigned int i;
1069
1070 switch (mask) {
1071 case 0:
1072 *p++ = '?';
1073 break;
1074
1075 case 0xf:
1076 p += sprintf(p, "%X", nibble);
1077 break;
1078
1079 default:
1080 /*
1081 * Dumbly emit a match pattern for all possible matching
1082 * digits. This could be improved in some cases using ranges,
1083 * but it has the advantage of being trivially correct, and is
1084 * often optimal.
1085 */
1086 *p++ = '[';
1087 for (i = 0; i < 0x10; i++)
1088 if ((i & mask) == nibble)
1089 p += sprintf(p, "%X", i);
1090 *p++ = ']';
1091 }
1092
1093 /* Ensure that the string remains NUL-terminated: */
1094 *p = '\0';
1095
1096 /* Advance the caller's end-of-string pointer: */
1097 *outp = p;
1098}
1099
1100/*
1101 * looks like: "amba:dN"
1102 *
1103 * N is exactly 8 digits, where each is an upper-case hex digit, or
1104 * a ? or [] pattern matching exactly one digit.
1105 */
1106static int do_amba_entry(const char *filename,
1107 void *symval, char *alias)
1108{
1109 unsigned int digit;
1110 char *p = alias;
1111 DEF_FIELD(symval, amba_id, id);
1112 DEF_FIELD(symval, amba_id, mask);
1113
1114 if ((id & mask) != id)
1115 fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
1116 "id=0x%08X, mask=0x%08X. Please fix this driver.\n",
1117 filename, id, mask);
1118
1119 p += sprintf(alias, "amba:d");
1120 for (digit = 0; digit < 8; digit++)
1121 append_nibble_mask(&p,
1122 (id >> (4 * (7 - digit))) & 0xf,
1123 (mask >> (4 * (7 - digit))) & 0xf);
1124
1125 return 1;
1126}
1127
1128/*
1129 * looks like: "mipscdmm:tN"
1130 *
1131 * N is exactly 2 digits, where each is an upper-case hex digit, or
1132 * a ? or [] pattern matching exactly one digit.
1133 */
1134static int do_mips_cdmm_entry(const char *filename,
1135 void *symval, char *alias)
1136{
1137 DEF_FIELD(symval, mips_cdmm_device_id, type);
1138
1139 sprintf(alias, "mipscdmm:t%02X*", type);
1140 return 1;
1141}
1142
1143/* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
1144 * All fields are numbers. It would be nicer to use strings for vendor
1145 * and feature, but getting those out of the build system here is too
1146 * complicated.
1147 */
1148
1149static int do_x86cpu_entry(const char *filename, void *symval,
1150 char *alias)
1151{
1152 DEF_FIELD(symval, x86_cpu_id, feature);
1153 DEF_FIELD(symval, x86_cpu_id, family);
1154 DEF_FIELD(symval, x86_cpu_id, model);
1155 DEF_FIELD(symval, x86_cpu_id, vendor);
1156
1157 strcpy(alias, "cpu:type:x86,");
1158 ADD(alias, "ven", vendor != X86_VENDOR_ANY, vendor);
1159 ADD(alias, "fam", family != X86_FAMILY_ANY, family);
1160 ADD(alias, "mod", model != X86_MODEL_ANY, model);
1161 strcat(alias, ":feature:*");
1162 if (feature != X86_FEATURE_ANY)
1163 sprintf(alias + strlen(alias), "%04X*", feature);
1164 return 1;
1165}
1166
1167/* LOOKS like cpu:type:*:feature:*FEAT* */
1168static int do_cpu_entry(const char *filename, void *symval, char *alias)
1169{
1170 DEF_FIELD(symval, cpu_feature, feature);
1171
1172 sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
1173 return 1;
1174}
1175
1176/* Looks like: mei:S:uuid:N:* */
1177static int do_mei_entry(const char *filename, void *symval,
1178 char *alias)
1179{
1180 DEF_FIELD_ADDR(symval, mei_cl_device_id, name);
1181 DEF_FIELD_ADDR(symval, mei_cl_device_id, uuid);
1182 DEF_FIELD(symval, mei_cl_device_id, version);
1183
1184 sprintf(alias, MEI_CL_MODULE_PREFIX);
1185 sprintf(alias + strlen(alias), "%s:", (*name)[0] ? *name : "*");
1186 add_uuid(alias, *uuid);
1187 ADD(alias, ":", version != MEI_CL_VERSION_ANY, version);
1188
1189 strcat(alias, ":*");
1190
1191 return 1;
1192}
1193
1194/* Looks like: rapidio:vNdNavNadN */
1195static int do_rio_entry(const char *filename,
1196 void *symval, char *alias)
1197{
1198 DEF_FIELD(symval, rio_device_id, did);
1199 DEF_FIELD(symval, rio_device_id, vid);
1200 DEF_FIELD(symval, rio_device_id, asm_did);
1201 DEF_FIELD(symval, rio_device_id, asm_vid);
1202
1203 strcpy(alias, "rapidio:");
1204 ADD(alias, "v", vid != RIO_ANY_ID, vid);
1205 ADD(alias, "d", did != RIO_ANY_ID, did);
1206 ADD(alias, "av", asm_vid != RIO_ANY_ID, asm_vid);
1207 ADD(alias, "ad", asm_did != RIO_ANY_ID, asm_did);
1208
1209 add_wildcard(alias);
1210 return 1;
1211}
1212
1213/* Looks like: ulpi:vNpN */
1214static int do_ulpi_entry(const char *filename, void *symval,
1215 char *alias)
1216{
1217 DEF_FIELD(symval, ulpi_device_id, vendor);
1218 DEF_FIELD(symval, ulpi_device_id, product);
1219
1220 sprintf(alias, "ulpi:v%04xp%04x", vendor, product);
1221
1222 return 1;
1223}
1224
1225/* Looks like: hdaudio:vNrNaN */
1226static int do_hda_entry(const char *filename, void *symval, char *alias)
1227{
1228 DEF_FIELD(symval, hda_device_id, vendor_id);
1229 DEF_FIELD(symval, hda_device_id, rev_id);
1230 DEF_FIELD(symval, hda_device_id, api_version);
1231
1232 strcpy(alias, "hdaudio:");
1233 ADD(alias, "v", vendor_id != 0, vendor_id);
1234 ADD(alias, "r", rev_id != 0, rev_id);
1235 ADD(alias, "a", api_version != 0, api_version);
1236
1237 add_wildcard(alias);
1238 return 1;
1239}
1240
1241/* Looks like: sdw:mNpN */
1242static int do_sdw_entry(const char *filename, void *symval, char *alias)
1243{
1244 DEF_FIELD(symval, sdw_device_id, mfg_id);
1245 DEF_FIELD(symval, sdw_device_id, part_id);
1246
1247 strcpy(alias, "sdw:");
1248 ADD(alias, "m", mfg_id != 0, mfg_id);
1249 ADD(alias, "p", part_id != 0, part_id);
1250
1251 add_wildcard(alias);
1252 return 1;
1253}
1254
1255/* Looks like: fsl-mc:vNdN */
1256static int do_fsl_mc_entry(const char *filename, void *symval,
1257 char *alias)
1258{
1259 DEF_FIELD(symval, fsl_mc_device_id, vendor);
1260 DEF_FIELD_ADDR(symval, fsl_mc_device_id, obj_type);
1261
1262 sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
1263 return 1;
1264}
1265
1266/* Looks like: tbsvc:kSpNvNrN */
1267static int do_tbsvc_entry(const char *filename, void *symval, char *alias)
1268{
1269 DEF_FIELD(symval, tb_service_id, match_flags);
1270 DEF_FIELD_ADDR(symval, tb_service_id, protocol_key);
1271 DEF_FIELD(symval, tb_service_id, protocol_id);
1272 DEF_FIELD(symval, tb_service_id, protocol_version);
1273 DEF_FIELD(symval, tb_service_id, protocol_revision);
1274
1275 strcpy(alias, "tbsvc:");
1276 if (match_flags & TBSVC_MATCH_PROTOCOL_KEY)
1277 sprintf(alias + strlen(alias), "k%s", *protocol_key);
1278 else
1279 strcat(alias + strlen(alias), "k*");
1280 ADD(alias, "p", match_flags & TBSVC_MATCH_PROTOCOL_ID, protocol_id);
1281 ADD(alias, "v", match_flags & TBSVC_MATCH_PROTOCOL_VERSION,
1282 protocol_version);
1283 ADD(alias, "r", match_flags & TBSVC_MATCH_PROTOCOL_REVISION,
1284 protocol_revision);
1285
1286 add_wildcard(alias);
1287 return 1;
1288}
1289
1290/* Looks like: typec:idNmN */
1291static int do_typec_entry(const char *filename, void *symval, char *alias)
1292{
1293 DEF_FIELD(symval, typec_device_id, svid);
1294 DEF_FIELD(symval, typec_device_id, mode);
1295
1296 sprintf(alias, "typec:id%04X", svid);
1297 ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
1298
1299 return 1;
1300}
1301
1302/* Looks like: tee:uuid */
1303static int do_tee_entry(const char *filename, void *symval, char *alias)
1304{
1305 DEF_FIELD(symval, tee_client_device_id, uuid);
1306
1307 sprintf(alias, "tee:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
1308 uuid.b[0], uuid.b[1], uuid.b[2], uuid.b[3], uuid.b[4],
1309 uuid.b[5], uuid.b[6], uuid.b[7], uuid.b[8], uuid.b[9],
1310 uuid.b[10], uuid.b[11], uuid.b[12], uuid.b[13], uuid.b[14],
1311 uuid.b[15]);
1312
1313 add_wildcard(alias);
1314 return 1;
1315}
1316
1317/* Looks like: wmi:guid */
1318static int do_wmi_entry(const char *filename, void *symval, char *alias)
1319{
1320 int len;
1321 DEF_FIELD_ADDR(symval, wmi_device_id, guid_string);
1322
1323 if (strlen(*guid_string) != UUID_STRING_LEN) {
1324 warn("Invalid WMI device id 'wmi:%s' in '%s'\n",
1325 *guid_string, filename);
1326 return 0;
1327 }
1328
1329 len = snprintf(alias, ALIAS_SIZE, WMI_MODULE_PREFIX "%s", *guid_string);
1330 if (len < 0 || len >= ALIAS_SIZE) {
1331 warn("Could not generate all MODULE_ALIAS's in '%s'\n",
1332 filename);
1333 return 0;
1334 }
1335 return 1;
1336}
1337
1338/* Does namelen bytes of name exactly match the symbol? */
1339static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1340{
1341 if (namelen != strlen(symbol))
1342 return false;
1343
1344 return memcmp(name, symbol, namelen) == 0;
1345}
1346
1347static void do_table(void *symval, unsigned long size,
1348 unsigned long id_size,
1349 const char *device_id,
1350 int (*do_entry)(const char *filename, void *symval, char *alias),
1351 struct module *mod)
1352{
1353 unsigned int i;
1354 char alias[ALIAS_SIZE];
1355
1356 device_id_check(mod->name, device_id, size, id_size, symval);
1357 /* Leave last one: it's the terminator. */
1358 size -= id_size;
1359
1360 for (i = 0; i < size; i += id_size) {
1361 if (do_entry(mod->name, symval+i, alias)) {
1362 buf_printf(&mod->dev_table_buf,
1363 "MODULE_ALIAS(\"%s\");\n", alias);
1364 }
1365 }
1366}
1367
1368static const struct devtable devtable[] = {
1369 {"hid", SIZE_hid_device_id, do_hid_entry},
1370 {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
1371 {"pci", SIZE_pci_device_id, do_pci_entry},
1372 {"ccw", SIZE_ccw_device_id, do_ccw_entry},
1373 {"ap", SIZE_ap_device_id, do_ap_entry},
1374 {"css", SIZE_css_device_id, do_css_entry},
1375 {"serio", SIZE_serio_device_id, do_serio_entry},
1376 {"acpi", SIZE_acpi_device_id, do_acpi_entry},
1377 {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
1378 {"vio", SIZE_vio_device_id, do_vio_entry},
1379 {"input", SIZE_input_device_id, do_input_entry},
1380 {"eisa", SIZE_eisa_device_id, do_eisa_entry},
1381 {"parisc", SIZE_parisc_device_id, do_parisc_entry},
1382 {"sdio", SIZE_sdio_device_id, do_sdio_entry},
1383 {"ssb", SIZE_ssb_device_id, do_ssb_entry},
1384 {"bcma", SIZE_bcma_device_id, do_bcma_entry},
1385 {"virtio", SIZE_virtio_device_id, do_virtio_entry},
1386 {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
1387 {"rpmsg", SIZE_rpmsg_device_id, do_rpmsg_entry},
1388 {"i2c", SIZE_i2c_device_id, do_i2c_entry},
1389 {"spi", SIZE_spi_device_id, do_spi_entry},
1390 {"dmi", SIZE_dmi_system_id, do_dmi_entry},
1391 {"platform", SIZE_platform_device_id, do_platform_entry},
1392 {"mdio", SIZE_mdio_device_id, do_mdio_entry},
1393 {"zorro", SIZE_zorro_device_id, do_zorro_entry},
1394 {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
1395 {"ipack", SIZE_ipack_device_id, do_ipack_entry},
1396 {"amba", SIZE_amba_id, do_amba_entry},
1397 {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
1398 {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
1399 {"cpu", SIZE_cpu_feature, do_cpu_entry},
1400 {"mei", SIZE_mei_cl_device_id, do_mei_entry},
1401 {"rapidio", SIZE_rio_device_id, do_rio_entry},
1402 {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
1403 {"hdaudio", SIZE_hda_device_id, do_hda_entry},
1404 {"sdw", SIZE_sdw_device_id, do_sdw_entry},
1405 {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
1406 {"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
1407 {"typec", SIZE_typec_device_id, do_typec_entry},
1408 {"tee", SIZE_tee_client_device_id, do_tee_entry},
1409 {"wmi", SIZE_wmi_device_id, do_wmi_entry},
1410};
1411
1412/* Create MODULE_ALIAS() statements.
1413 * At this time, we cannot write the actual output C source yet,
1414 * so we write into the mod->dev_table_buf buffer. */
1415void handle_moddevtable(struct module *mod, struct elf_info *info,
1416 Elf_Sym *sym, const char *symname)
1417{
1418 void *symval;
1419 char *zeros = NULL;
1420 const char *name, *identifier;
1421 unsigned int namelen;
1422
1423 /* We're looking for a section relative symbol */
1424 if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
1425 return;
1426
1427 /* We're looking for an object */
1428 if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
1429 return;
1430
1431 /* All our symbols are of form __mod_<name>__<identifier>_device_table. */
1432 if (strncmp(symname, "__mod_", strlen("__mod_")))
1433 return;
1434 name = symname + strlen("__mod_");
1435 namelen = strlen(name);
1436 if (namelen < strlen("_device_table"))
1437 return;
1438 if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
1439 return;
1440 identifier = strstr(name, "__");
1441 if (!identifier)
1442 return;
1443 namelen = identifier - name;
1444
1445 /* Handle all-NULL symbols allocated into .bss */
1446 if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
1447 zeros = calloc(1, sym->st_size);
1448 symval = zeros;
1449 } else {
1450 symval = (void *)info->hdr
1451 + info->sechdrs[get_secindex(info, sym)].sh_offset
1452 + sym->st_value;
1453 }
1454
1455 /* First handle the "special" cases */
1456 if (sym_is(name, namelen, "usb"))
1457 do_usb_table(symval, sym->st_size, mod);
1458 if (sym_is(name, namelen, "of"))
1459 do_of_table(symval, sym->st_size, mod);
1460 else if (sym_is(name, namelen, "pnp"))
1461 do_pnp_device_entry(symval, sym->st_size, mod);
1462 else if (sym_is(name, namelen, "pnp_card"))
1463 do_pnp_card_entries(symval, sym->st_size, mod);
1464 else {
1465 int i;
1466
1467 for (i = 0; i < ARRAY_SIZE(devtable); i++) {
1468 const struct devtable *p = &devtable[i];
1469
1470 if (sym_is(name, namelen, p->device_id)) {
1471 do_table(symval, sym->st_size, p->id_size,
1472 p->device_id, p->do_entry, mod);
1473 break;
1474 }
1475 }
1476 }
1477 free(zeros);
1478}
1479
1480/* Now add out buffered information to the generated C source */
1481void add_moddevtable(struct buffer *buf, struct module *mod)
1482{
1483 buf_printf(buf, "\n");
1484 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
1485 free(mod->dev_table_buf.p);
1486}