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Merge tag 'amd-drm-fixes-5.9-2020-08-12' of git://people.freedesktop.org/~agd5f/linux...
[linux-2.6-block.git] / scripts / mod / file2alias.c
CommitLineData
1da177e4
LT		 1/* Simple code to turn various tables in an ELF file into alias definitions.
2 * This deals with kernel datastructures where they should be
3 * dealt with: in the kernel source.
4 *
5 * Copyright 2002-2003 Rusty Russell, IBM Corporation
6 * 2003 Kai Germaschewski
7 *
8 *
9 * This software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
11 */
12
13#include "modpost.h"
6543becf 14#include "devicetable-offsets.h"
1da177e4
LT		 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;
1d8f430c 20#define BITS_PER_LONG 32
1da177e4
LT		 21#else
22typedef Elf64_Addr kernel_ulong_t;
1d8f430c 23#define BITS_PER_LONG 64
1da177e4
LT		 24#endif
25#ifdef __sun__
26#include <inttypes.h>
27#else
28#include <stdint.h>
29#endif
30
5e655772 31#include <ctype.h>
626596e2 32#include <stdbool.h>
5e655772 33
1da177e4
LT		 34typedef uint32_t __u32;
35typedef uint16_t __u16;
36typedef unsigned char __u8;
389c9af7
HK		 37typedef struct {
38 __u8 b[16];
39} guid_t;
40
41/* backwards compatibility, don't use in new code */
b144ce2d
GKH		 42typedef struct {
43 __u8 b[16];
44} uuid_le;
0fc1db9d
SG		 45typedef struct {
46 __u8 b[16];
47} uuid_t;
eacc95ea 48#define UUID_STRING_LEN 36
1da177e4
LT		 49
50/* Big exception to the "don't include kernel headers into userspace, which
62070fa4 51 * even potentially has different endianness and word sizes, since
1da177e4
LT		 52 * we handle those differences explicitly below */
53#include "../../include/linux/mod_devicetable.h"
54
e49ce141
RR		 55/* This array collects all instances that use the generic do_table */
56struct devtable {
21bdd17b 57 const char *device_id; /* name of table, __mod_<name>__*_device_table. */
e49ce141 58 unsigned long id_size;
f880eea6 59 int (*do_entry)(const char *filename, void *symval, char *alias);
e49ce141
RR		 60};
61
841f1b8f
MJ		 62/* Size of alias provided to do_entry functions */
63#define ALIAS_SIZE 500
64
6543becf
AS		 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))
c2b1a922
LB		 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
6543becf
AS		 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) \
c2b1a922 83 DEF_FIELD_ADDR_VAR(m, devid, f, f)
6543becf 84
1da177e4
LT		 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
2f632369 98/* End in a wildcard, for future extension */
ac551828
JD		 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
b144ce2d 107static inline void add_uuid(char *str, uuid_le uuid)
c93b76b3
TW		 108{
109 int len = strlen(str);
c93b76b3 110
59796edc
PB		 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]);
c93b76b3
TW		 116}
117
fb33d816
SR		 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.
e0049825 122 * Also verify that the final entry in the table is all zeros.
4ce6efed 123 * Ignore both checks if build host differ from target host and size differs.
fb33d816 124 **/
e0049825
KC		 125static void device_id_check(const char *modname, const char *device_id,
126 unsigned long size, unsigned long id_size,
127 void *symval)
fb33d816 128{
e0049825
KC		 129 int i;
130
fb33d816
SR		 131 if (size % id_size || size < id_size) {
132 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
21bdd17b
TG		 133 "of the size of "
134 "section __mod_%s__<identifier>_device_table=%lu.\n"
fb33d816
SR		 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 }
e0049825
KC		 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 }
fb33d816
SR		 153}
154
b19dcd93 155/* USB is special because the bcdDevice can be matched against a numeric range */
81df2d59 156/* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
6543becf 157static void do_usb_entry(void *symval,
b19dcd93
RK		 158 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
159 unsigned char range_lo, unsigned char range_hi,
afe2dab4 160 unsigned char max, struct module *mod)
1da177e4 161{
b19dcd93 162 char alias[500];
6543becf
AS		 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
1da177e4 175 strcpy(alias, "usb:");
6543becf
AS		 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);
b19dcd93
RK		 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)
afe2dab4
NM		 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),
03b56329
JMM		 198 range_hi > 0xA ? "A-%X]" : "%X]",
199 range_hi);
afe2dab4
NM		 200 }
201 }
6543becf 202 if (bcdDevice_initial_digits < (sizeof(bcdDevice_lo) * 2 - 1))
b19dcd93
RK		 203 strcat(alias, "*");
204
6543becf
AS		 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);
b19dcd93 219
ac551828 220 add_wildcard(alias);
b19dcd93
RK		 221 buf_printf(&mod->dev_table_buf,
222 "MODULE_ALIAS(\"%s\");\n", alias);
223}
224
55f49f26
NM		 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
6543becf 264static void do_usb_entry_multi(void *symval, struct module *mod)
b19dcd93
RK		 265{
266 unsigned int devlo, devhi;
afe2dab4 267 unsigned char chi, clo, max;
b19dcd93
RK		 268 int ndigits;
269
6543becf
AS		 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);
b19dcd93 277
6543becf
AS		 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;
b19dcd93 282
afe2dab4
NM		 283 /* Figure out if this entry is in bcd or hex format */
284 max = 0x9; /* Default to decimal format */
6543becf 285 for (ndigits = 0 ; ndigits < sizeof(bcdDevice_lo) * 2 ; ndigits++) {
afe2dab4
NM		 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
b19dcd93
RK		 294 /*
295 * Some modules (visor) have empty slots as placeholder for
296 * run-time specification that results in catch-all alias
297 */
6543becf 298 if (!(idVendor | idProduct | bDeviceClass | bInterfaceClass))
b19dcd93
RK		 299 return;
300
301 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
6543becf 302 for (ndigits = sizeof(bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
b19dcd93
RK		 303 clo = devlo & 0xf;
304 chi = devhi & 0xf;
afe2dab4
NM		 305 if (chi > max) /* If we are in bcd mode, truncate if necessary */
306 chi = max;
b19dcd93
RK		 307 devlo >>= 4;
308 devhi >>= 4;
309
310 if (devlo == devhi || !ndigits) {
6543becf 311 do_usb_entry(symval, devlo, ndigits, clo, chi, max, mod);
b19dcd93
RK		 312 break;
313 }
314
afe2dab4 315 if (clo > 0x0)
6543becf 316 do_usb_entry(symval,
55f49f26 317 incbcd(&devlo, 1, max,
6543becf 318 sizeof(bcdDevice_lo) * 2),
55f49f26 319 ndigits, clo, max, max, mod);
b19dcd93 320
afe2dab4 321 if (chi < max)
6543becf 322 do_usb_entry(symval,
55f49f26 323 incbcd(&devhi, -1, max,
6543becf 324 sizeof(bcdDevice_lo) * 2),
55f49f26 325 ndigits, 0x0, chi, max, mod);
b19dcd93
RK		 326 }
327}
328
329static void do_usb_table(void *symval, unsigned long size,
330 struct module *mod)
331{
332 unsigned int i;
6543becf 333 const unsigned long id_size = SIZE_usb_device_id;
b19dcd93 334
e0049825 335 device_id_check(mod->name, "usb", size, id_size, symval);
fb33d816 336
b19dcd93
RK		 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);
1da177e4
LT		 342}
343
acbef7b7
PZ		 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
b3c0a4da 357 if ((*compatible)[0])
acbef7b7
PZ		 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
e8c84f9a
JS		 387/* Looks like: hid:bNvNpN */
388static int do_hid_entry(const char *filename,
6543becf 389 void *symval, char *alias)
e8c84f9a 390{
6543becf
AS		 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);
e8c84f9a 395
7431fb76 396 sprintf(alias, "hid:");
6543becf
AS		 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);
e8c84f9a
JS		 401
402 return 1;
403}
404
1da177e4
LT		 405/* Looks like: ieee1394:venNmoNspNverN */
406static int do_ieee1394_entry(const char *filename,
6543becf 407 void *symval, char *alias)
1da177e4 408{
6543becf
AS		 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);
1da177e4
LT		 414
415 strcpy(alias, "ieee1394:");
6543becf
AS		 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);
1da177e4 424
ac551828 425 add_wildcard(alias);
1da177e4
LT		 426 return 1;
427}
428
429/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
430static int do_pci_entry(const char *filename,
6543becf 431 void *symval, char *alias)
1da177e4
LT		 432{
433 /* Class field can be divided into these three. */
434 unsigned char baseclass, subclass, interface,
435 baseclass_mask, subclass_mask, interface_mask;
436
6543becf
AS		 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);
1da177e4
LT		 443
444 strcpy(alias, "pci:");
6543becf
AS		 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;
1da177e4
LT		 456
457 if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
458 || (subclass_mask != 0 && subclass_mask != 0xFF)
459 || (interface_mask != 0 && interface_mask != 0xFF)) {
cb80514d 460 warn("Can't handle masks in %s:%04X\n",
6543becf 461 filename, class_mask);
1da177e4
LT		 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);
ac551828 468 add_wildcard(alias);
1da177e4
LT		 469 return 1;
470}
471
62070fa4 472/* looks like: "ccw:tNmNdtNdmN" */
1da177e4 473static int do_ccw_entry(const char *filename,
6543becf 474 void *symval, char *alias)
1da177e4 475{
6543becf
AS		 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);
1da177e4
LT		 481
482 strcpy(alias, "ccw:");
6543becf
AS		 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);
ac551828 491 add_wildcard(alias);
1da177e4
LT		 492 return 1;
493}
494
1534c382
MS		 495/* looks like: "ap:tN" */
496static int do_ap_entry(const char *filename,
6543becf 497 void *symval, char *alias)
1534c382 498{
6543becf
AS		 499 DEF_FIELD(symval, ap_device_id, dev_type);
500
501 sprintf(alias, "ap:t%02X*", dev_type);
1534c382
MS		 502 return 1;
503}
504
7e9db9ea
CH		 505/* looks like: "css:tN" */
506static int do_css_entry(const char *filename,
6543becf 507 void *symval, char *alias)
7e9db9ea 508{
6543becf
AS		 509 DEF_FIELD(symval, css_device_id, type);
510
511 sprintf(alias, "css:t%01X", type);
7e9db9ea
CH		 512 return 1;
513}
514
1da177e4
LT		 515/* Looks like: "serio:tyNprNidNexN" */
516static int do_serio_entry(const char *filename,
6543becf 517 void *symval, char *alias)
1da177e4 518{
6543becf
AS		 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);
1da177e4
LT		 523
524 strcpy(alias, "serio:");
6543becf
AS		 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);
1da177e4 529
ac551828 530 add_wildcard(alias);
1da177e4
LT		 531 return 1;
532}
533
26095a01
SS		 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 */
29b71a1c 541static int do_acpi_entry(const char *filename,
6543becf 542 void *symval, char *alias)
29b71a1c 543{
6543becf 544 DEF_FIELD_ADDR(symval, acpi_device_id, id);
26095a01
SS		 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 }
29b71a1c
TR		 568 return 1;
569}
570
1da177e4 571/* looks like: "pnp:dD" */
22454cb9
KS		 572static void do_pnp_device_entry(void *symval, unsigned long size,
573 struct module *mod)
1da177e4 574{
6543becf 575 const unsigned long id_size = SIZE_pnp_device_id;
5e4c6564 576 const unsigned int count = (size / id_size)-1;
5e4c6564 577 unsigned int i;
22454cb9
KS		 578
579 device_id_check(mod->name, "pnp", size, id_size, symval);
580
5e4c6564 581 for (i = 0; i < count; i++) {
6543becf
AS		 582 DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
583 char acpi_id[sizeof(*id)];
72638f59 584 int j;
5e4c6564
KS		 585
586 buf_printf(&mod->dev_table_buf,
6543becf 587 "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
72638f59
KS		 588
589 /* fix broken pnp bus lowercasing */
590 for (j = 0; j < sizeof(acpi_id); j++)
6543becf 591 acpi_id[j] = toupper((*id)[j]);
5e4c6564 592 buf_printf(&mod->dev_table_buf,
72638f59 593 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
5e4c6564 594 }
1da177e4
LT		 595}
596
0c81eed4
KS		 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)
1da177e4 600{
6543becf 601 const unsigned long id_size = SIZE_pnp_card_device_id;
0c81eed4 602 const unsigned int count = (size / id_size)-1;
0c81eed4 603 unsigned int i;
1da177e4 604
0c81eed4
KS		 605 device_id_check(mod->name, "pnp", size, id_size, symval);
606
607 for (i = 0; i < count; i++) {
608 unsigned int j;
c2b1a922 609 DEF_FIELD_ADDR(symval + i * id_size, pnp_card_device_id, devs);
0c81eed4
KS		 610
611 for (j = 0; j < PNP_MAX_DEVICES; j++) {
6543becf 612 const char *id = (char *)(*devs)[j].id;
0c81eed4
KS		 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++) {
c2b1a922
LB		 621 DEF_FIELD_ADDR_VAR(symval + i2 * id_size,
622 pnp_card_device_id,
623 devs, devs_dup);
0c81eed4
KS		 624
625 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
c2b1a922
LB		 626 const char *id2 =
627 (char *)(*devs_dup)[j2].id;
0c81eed4
KS		 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 */
22454cb9 640 if (!dup) {
6543becf 641 char acpi_id[PNP_ID_LEN];
72638f59
KS		 642 int k;
643
0c81eed4
KS		 644 buf_printf(&mod->dev_table_buf,
645 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
72638f59
KS		 646
647 /* fix broken pnp bus lowercasing */
648 for (k = 0; k < sizeof(acpi_id); k++)
649 acpi_id[k] = toupper(id[k]);
22454cb9 650 buf_printf(&mod->dev_table_buf,
72638f59 651 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
22454cb9 652 }
0c81eed4 653 }
1da177e4 654 }
1da177e4
LT		 655}
656
90829cfe
DB		 657/* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
658static int do_pcmcia_entry(const char *filename,
6543becf 659 void *symval, char *alias)
90829cfe
DB		 660{
661 unsigned int i;
6543becf
AS		 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);
4fb7edce 669
90829cfe 670 for (i=0; i<4; i++) {
6543becf
AS		 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]);
90829cfe 689
ac551828 690 add_wildcard(alias);
6543becf 691 return 1;
90829cfe 692}
90829cfe 693
6543becf 694static int do_vio_entry(const char *filename, void *symval,
fb120da6
SR		 695 char *alias)
696{
697 char *tmp;
6543becf
AS		 698 DEF_FIELD_ADDR(symval, vio_device_id, type);
699 DEF_FIELD_ADDR(symval, vio_device_id, compat);
fb120da6 700
6543becf
AS		 701 sprintf(alias, "vio:T%sS%s", (*type)[0] ? *type : "*",
702 (*compat)[0] ? *compat : "*");
fb120da6
SR		 703
704 /* Replace all whitespace with underscores */
705 for (tmp = alias; tmp && *tmp; tmp++)
706 if (isspace (*tmp))
707 *tmp = '_';
708
ac551828 709 add_wildcard(alias);
fb120da6
SR		 710 return 1;
711}
712
1d8f430c
RR		 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;
ddc5d341 719
6543becf
AS		 720 for (i = min / BITS_PER_LONG; i < max / BITS_PER_LONG + 1; i++)
721 arr[i] = TO_NATIVE(arr[i]);
ddc5d341 722 for (i = min; i < max; i++)
e0e92632 723 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
ddc5d341 724 sprintf(alias + strlen(alias), "%X,*", i);
1d8f430c
RR		 725}
726
09c3e01b 727/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
6543becf 728static int do_input_entry(const char *filename, void *symval,
1d8f430c
RR		 729 char *alias)
730{
6543becf
AS		 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
1d8f430c
RR		 746 sprintf(alias, "input:");
747
6543becf
AS		 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);
1d8f430c
RR		 752
753 sprintf(alias + strlen(alias), "-e*");
6543becf
AS		 754 if (flags & INPUT_DEVICE_ID_MATCH_EVBIT)
755 do_input(alias, *evbit, 0, INPUT_DEVICE_ID_EV_MAX);
1d8f430c 756 sprintf(alias + strlen(alias), "k*");
6543becf
AS		 757 if (flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
758 do_input(alias, *keybit,
dc24f0e7
SR		 759 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
760 INPUT_DEVICE_ID_KEY_MAX);
1d8f430c 761 sprintf(alias + strlen(alias), "r*");
6543becf
AS		 762 if (flags & INPUT_DEVICE_ID_MATCH_RELBIT)
763 do_input(alias, *relbit, 0, INPUT_DEVICE_ID_REL_MAX);
1d8f430c 764 sprintf(alias + strlen(alias), "a*");
6543becf
AS		 765 if (flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
766 do_input(alias, *absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
1d8f430c 767 sprintf(alias + strlen(alias), "m*");
6543becf
AS		 768 if (flags & INPUT_DEVICE_ID_MATCH_MSCIT)
769 do_input(alias, *mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
1d8f430c 770 sprintf(alias + strlen(alias), "l*");
6543becf
AS		 771 if (flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
772 do_input(alias, *ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
1d8f430c 773 sprintf(alias + strlen(alias), "s*");
6543becf
AS		 774 if (flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
775 do_input(alias, *sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
1d8f430c 776 sprintf(alias + strlen(alias), "f*");
6543becf
AS		 777 if (flags & INPUT_DEVICE_ID_MATCH_FFBIT)
778 do_input(alias, *ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
1d8f430c 779 sprintf(alias + strlen(alias), "w*");
6543becf
AS		 780 if (flags & INPUT_DEVICE_ID_MATCH_SWBIT)
781 do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
1d8f430c
RR		 782 return 1;
783}
784
6543becf 785static int do_eisa_entry(const char *filename, void *symval,
07563c71
MT		 786 char *alias)
787{
6543becf
AS		 788 DEF_FIELD_ADDR(symval, eisa_device_id, sig);
789 if (sig[0])
790 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", *sig);
ac551828
JD		 791 else
792 strcat(alias, "*");
07563c71
MT		 793 return 1;
794}
795
f3cf2673 796/* Looks like: parisc:tNhvNrevNsvN */
6543becf 797static int do_parisc_entry(const char *filename, void *symval,
f3cf2673
KM		 798 char *alias)
799{
6543becf
AS		 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);
f3cf2673
KM		 804
805 strcpy(alias, "parisc:");
6543becf
AS		 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);
f3cf2673 810
ac551828 811 add_wildcard(alias);
f3cf2673
KM		 812 return 1;
813}
814
d59b66c7
PO		 815/* Looks like: sdio:cNvNdN. */
816static int do_sdio_entry(const char *filename,
6543becf 817 void *symval, char *alias)
d59b66c7 818{
6543becf
AS		 819 DEF_FIELD(symval, sdio_device_id, class);
820 DEF_FIELD(symval, sdio_device_id, vendor);
821 DEF_FIELD(symval, sdio_device_id, device);
d59b66c7
PO		 822
823 strcpy(alias, "sdio:");
6543becf
AS		 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);
ac551828 827 add_wildcard(alias);
038a5008
LT		 828 return 1;
829}
830
61e115a5
MB		 831/* Looks like: ssb:vNidNrevN. */
832static int do_ssb_entry(const char *filename,
6543becf 833 void *symval, char *alias)
61e115a5 834{
6543becf
AS		 835 DEF_FIELD(symval, ssb_device_id, vendor);
836 DEF_FIELD(symval, ssb_device_id, coreid);
837 DEF_FIELD(symval, ssb_device_id, revision);
d59b66c7 838
61e115a5 839 strcpy(alias, "ssb:");
6543becf
AS		 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);
ac551828 843 add_wildcard(alias);
d59b66c7
PO		 844 return 1;
845}
846
8369ae33
RM		 847/* Looks like: bcma:mNidNrevNclN. */
848static int do_bcma_entry(const char *filename,
6543becf 849 void *symval, char *alias)
8369ae33 850{
6543becf
AS		 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);
8369ae33
RM		 855
856 strcpy(alias, "bcma:");
6543becf
AS		 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);
8369ae33
RM		 861 add_wildcard(alias);
862 return 1;
863}
864
b01d9f28 865/* Looks like: virtio:dNvN */
6543becf 866static int do_virtio_entry(const char *filename, void *symval,
b01d9f28
RR		 867 char *alias)
868{
6543becf
AS		 869 DEF_FIELD(symval, virtio_device_id, device);
870 DEF_FIELD(symval, virtio_device_id, vendor);
b01d9f28
RR		 871
872 strcpy(alias, "virtio:");
6543becf
AS		 873 ADD(alias, "d", device != VIRTIO_DEV_ANY_ID, device);
874 ADD(alias, "v", vendor != VIRTIO_DEV_ANY_ID, vendor);
b01d9f28 875
ac551828 876 add_wildcard(alias);
b01d9f28
RR		 877 return 1;
878}
879
d2ee52aa
S		 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
6543becf 886static int do_vmbus_entry(const char *filename, void *symval,
d2ee52aa
S		 887 char *alias)
888{
889 int i;
6543becf
AS		 890 DEF_FIELD_ADDR(symval, hv_vmbus_device_id, guid);
891 char guid_name[(sizeof(*guid) + 1) * 2];
d2ee52aa 892
6543becf 893 for (i = 0; i < (sizeof(*guid) * 2); i += 2)
af3ff643 894 sprintf(&guid_name[i], "%02x", TO_NATIVE((guid->b)[i/2]));
d2ee52aa
S		 895
896 strcpy(alias, "vmbus:");
897 strcat(alias, guid_name);
898
899 return 1;
900}
901
5b7d1277
AD		 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}
5b7d1277 911
d2653e92 912/* Looks like: i2c:S */
6543becf 913static int do_i2c_entry(const char *filename, void *symval,
d2653e92
JD		 914 char *alias)
915{
6543becf
AS		 916 DEF_FIELD_ADDR(symval, i2c_device_id, name);
917 sprintf(alias, I2C_MODULE_PREFIX "%s", *name);
d2653e92
JD		 918
919 return 1;
920}
921
1ce589ad
BB		 922static int do_i3c_entry(const char *filename, void *symval,
923 char *alias)
924{
925 DEF_FIELD(symval, i3c_device_id, match_flags);
926 DEF_FIELD(symval, i3c_device_id, dcr);
927 DEF_FIELD(symval, i3c_device_id, manuf_id);
928 DEF_FIELD(symval, i3c_device_id, part_id);
929 DEF_FIELD(symval, i3c_device_id, extra_info);
930
931 strcpy(alias, "i3c:");
932 ADD(alias, "dcr", match_flags & I3C_MATCH_DCR, dcr);
933 ADD(alias, "manuf", match_flags & I3C_MATCH_MANUF, manuf_id);
934 ADD(alias, "part", match_flags & I3C_MATCH_PART, part_id);
935 ADD(alias, "ext", match_flags & I3C_MATCH_EXTRA_INFO, extra_info);
936
937 return 1;
938}
939
e0626e38 940/* Looks like: spi:S */
6543becf 941static int do_spi_entry(const char *filename, void *symval,
75368bf6
AV		 942 char *alias)
943{
6543becf
AS		 944 DEF_FIELD_ADDR(symval, spi_device_id, name);
945 sprintf(alias, SPI_MODULE_PREFIX "%s", *name);
75368bf6
AV		 946
947 return 1;
948}
949
d945b697
DW		 950static const struct dmifield {
951 const char *prefix;
952 int field;
953} dmi_fields[] = {
954 { "bvn", DMI_BIOS_VENDOR },
955 { "bvr", DMI_BIOS_VERSION },
956 { "bd", DMI_BIOS_DATE },
f5152f4d
EV		 957 { "br", DMI_BIOS_RELEASE },
958 { "efr", DMI_EC_FIRMWARE_RELEASE },
d945b697
DW		 959 { "svn", DMI_SYS_VENDOR },
960 { "pn", DMI_PRODUCT_NAME },
961 { "pvr", DMI_PRODUCT_VERSION },
962 { "rvn", DMI_BOARD_VENDOR },
963 { "rn", DMI_BOARD_NAME },
964 { "rvr", DMI_BOARD_VERSION },
965 { "cvn", DMI_CHASSIS_VENDOR },
966 { "ct", DMI_CHASSIS_TYPE },
967 { "cvr", DMI_CHASSIS_VERSION },
968 { NULL, DMI_NONE }
969};
970
971static void dmi_ascii_filter(char *d, const char *s)
972{
973 /* Filter out characters we don't want to see in the modalias string */
974 for (; *s; s++)
975 if (*s > ' ' && *s < 127 && *s != ':')
976 *(d++) = *s;
977
978 *d = 0;
979}
980
981
6543becf 982static int do_dmi_entry(const char *filename, void *symval,
d945b697
DW		 983 char *alias)
984{
985 int i, j;
6543becf 986 DEF_FIELD_ADDR(symval, dmi_system_id, matches);
d945b697
DW		 987 sprintf(alias, "dmi*");
988
989 for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
990 for (j = 0; j < 4; j++) {
6543becf
AS		 991 if ((*matches)[j].slot &&
992 (*matches)[j].slot == dmi_fields[i].field) {
d945b697
DW		 993 sprintf(alias + strlen(alias), ":%s*",
994 dmi_fields[i].prefix);
995 dmi_ascii_filter(alias + strlen(alias),
6543becf 996 (*matches)[j].substr);
d945b697
DW		 997 strcat(alias, "*");
998 }
999 }
1000 }
1001
1002 strcat(alias, ":");
1003 return 1;
1004}
57fee4a5
EM		 1005
1006static int do_platform_entry(const char *filename,
6543becf 1007 void *symval, char *alias)
57fee4a5 1008{
6543becf
AS		 1009 DEF_FIELD_ADDR(symval, platform_device_id, name);
1010 sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
57fee4a5
EM		 1011 return 1;
1012}
1013
8626d3b4 1014static int do_mdio_entry(const char *filename,
6543becf 1015 void *symval, char *alias)
8626d3b4
DW		 1016{
1017 int i;
6543becf
AS		 1018 DEF_FIELD(symval, mdio_device_id, phy_id);
1019 DEF_FIELD(symval, mdio_device_id, phy_id_mask);
8626d3b4
DW		 1020
1021 alias += sprintf(alias, MDIO_MODULE_PREFIX);
1022
1023 for (i = 0; i < 32; i++) {
6543becf 1024 if (!((phy_id_mask >> (31-i)) & 1))
8626d3b4 1025 *(alias++) = '?';
6543becf 1026 else if ((phy_id >> (31-i)) & 1)
8626d3b4
DW		 1027 *(alias++) = '1';
1028 else
1029 *(alias++) = '0';
1030 }
1031
1032 /* Terminate the string */
1033 *alias = 0;
1034
1035 return 1;
1036}
1037
bf54a2b3 1038/* Looks like: zorro:iN. */
6543becf 1039static int do_zorro_entry(const char *filename, void *symval,
bf54a2b3
GU		 1040 char *alias)
1041{
6543becf 1042 DEF_FIELD(symval, zorro_device_id, id);
bf54a2b3 1043 strcpy(alias, "zorro:");
6543becf 1044 ADD(alias, "i", id != ZORRO_WILDCARD, id);
bf54a2b3
GU		 1045 return 1;
1046}
1047
fedb3d27
OZ		 1048/* looks like: "pnp:dD" */
1049static int do_isapnp_entry(const char *filename,
6543becf 1050 void *symval, char *alias)
fedb3d27 1051{
6543becf
AS		 1052 DEF_FIELD(symval, isapnp_device_id, vendor);
1053 DEF_FIELD(symval, isapnp_device_id, function);
fedb3d27 1054 sprintf(alias, "pnp:d%c%c%c%x%x%x%x*",
6543becf
AS		 1055 'A' + ((vendor >> 2) & 0x3f) - 1,
1056 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
1057 'A' + ((vendor >> 8) & 0x1f) - 1,
1058 (function >> 4) & 0x0f, function & 0x0f,
1059 (function >> 12) & 0x0f, (function >> 8) & 0x0f);
fedb3d27
OZ		 1060 return 1;
1061}
1062
849e0ad2
JT		 1063/* Looks like: "ipack:fNvNdN". */
1064static int do_ipack_entry(const char *filename,
6543becf 1065 void *symval, char *alias)
849e0ad2 1066{
6543becf
AS		 1067 DEF_FIELD(symval, ipack_device_id, format);
1068 DEF_FIELD(symval, ipack_device_id, vendor);
1069 DEF_FIELD(symval, ipack_device_id, device);
849e0ad2 1070 strcpy(alias, "ipack:");
6543becf
AS		 1071 ADD(alias, "f", format != IPACK_ANY_FORMAT, format);
1072 ADD(alias, "v", vendor != IPACK_ANY_ID, vendor);
1073 ADD(alias, "d", device != IPACK_ANY_ID, device);
849e0ad2
JT		 1074 add_wildcard(alias);
1075 return 1;
1076}
849e0ad2 1077
523817bd
DM		 1078/*
1079 * Append a match expression for a single masked hex digit.
1080 * outp points to a pointer to the character at which to append.
1081 * *outp is updated on return to point just after the appended text,
1082 * to facilitate further appending.
1083 */
1084static void append_nibble_mask(char **outp,
1085 unsigned int nibble, unsigned int mask)
1086{
1087 char *p = *outp;
1088 unsigned int i;
1089
1090 switch (mask) {
1091 case 0:
1092 *p++ = '?';
1093 break;
1094
1095 case 0xf:
1096 p += sprintf(p, "%X", nibble);
1097 break;
1098
1099 default:
1100 /*
1101 * Dumbly emit a match pattern for all possible matching
1102 * digits. This could be improved in some cases using ranges,
1103 * but it has the advantage of being trivially correct, and is
1104 * often optimal.
1105 */
1106 *p++ = '[';
1107 for (i = 0; i < 0x10; i++)
1108 if ((i & mask) == nibble)
1109 p += sprintf(p, "%X", i);
1110 *p++ = ']';
1111 }
1112
1113 /* Ensure that the string remains NUL-terminated: */
1114 *p = '\0';
1115
1116 /* Advance the caller's end-of-string pointer: */
1117 *outp = p;
1118}
1119
1120/*
1121 * looks like: "amba:dN"
1122 *
1123 * N is exactly 8 digits, where each is an upper-case hex digit, or
1124 * a ? or [] pattern matching exactly one digit.
1125 */
1126static int do_amba_entry(const char *filename,
6543becf 1127 void *symval, char *alias)
523817bd
DM		 1128{
1129 unsigned int digit;
1130 char *p = alias;
6543becf
AS		 1131 DEF_FIELD(symval, amba_id, id);
1132 DEF_FIELD(symval, amba_id, mask);
523817bd 1133
6543becf 1134 if ((id & mask) != id)
523817bd
DM		 1135 fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
1136 "id=0x%08X, mask=0x%08X. Please fix this driver.\n",
6543becf 1137 filename, id, mask);
523817bd
DM		 1138
1139 p += sprintf(alias, "amba:d");
1140 for (digit = 0; digit < 8; digit++)
1141 append_nibble_mask(&p,
6543becf
AS		 1142 (id >> (4 * (7 - digit))) & 0xf,
1143 (mask >> (4 * (7 - digit))) & 0xf);
523817bd
DM		 1144
1145 return 1;
1146}
1147
8286ae03
JH		 1148/*
1149 * looks like: "mipscdmm:tN"
1150 *
1151 * N is exactly 2 digits, where each is an upper-case hex digit, or
1152 * a ? or [] pattern matching exactly one digit.
1153 */
1154static int do_mips_cdmm_entry(const char *filename,
1155 void *symval, char *alias)
1156{
1157 DEF_FIELD(symval, mips_cdmm_device_id, type);
1158
1159 sprintf(alias, "mipscdmm:t%02X*", type);
1160 return 1;
1161}
8286ae03 1162
2b9c1f03 1163/* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
644e9cbb
AK		 1164 * All fields are numbers. It would be nicer to use strings for vendor
1165 * and feature, but getting those out of the build system here is too
1166 * complicated.
1167 */
1168
6543becf 1169static int do_x86cpu_entry(const char *filename, void *symval,
644e9cbb
AK		 1170 char *alias)
1171{
6543becf
AS		 1172 DEF_FIELD(symval, x86_cpu_id, feature);
1173 DEF_FIELD(symval, x86_cpu_id, family);
1174 DEF_FIELD(symval, x86_cpu_id, model);
1175 DEF_FIELD(symval, x86_cpu_id, vendor);
644e9cbb 1176
2b9c1f03
AB		 1177 strcpy(alias, "cpu:type:x86,");
1178 ADD(alias, "ven", vendor != X86_VENDOR_ANY, vendor);
1179 ADD(alias, "fam", family != X86_FAMILY_ANY, family);
1180 ADD(alias, "mod", model != X86_MODEL_ANY, model);
5467bdda 1181 strcat(alias, ":feature:*");
6543becf
AS		 1182 if (feature != X86_FEATURE_ANY)
1183 sprintf(alias + strlen(alias), "%04X*", feature);
644e9cbb
AK		 1184 return 1;
1185}
644e9cbb 1186
67bad2fd
AB		 1187/* LOOKS like cpu:type:*:feature:*FEAT* */
1188static int do_cpu_entry(const char *filename, void *symval, char *alias)
1189{
1190 DEF_FIELD(symval, cpu_feature, feature);
1191
1192 sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
1193 return 1;
1194}
67bad2fd 1195
b26864ca 1196/* Looks like: mei:S:uuid:N:* */
e5354107
SO		 1197static int do_mei_entry(const char *filename, void *symval,
1198 char *alias)
1199{
1200 DEF_FIELD_ADDR(symval, mei_cl_device_id, name);
c93b76b3 1201 DEF_FIELD_ADDR(symval, mei_cl_device_id, uuid);
b26864ca 1202 DEF_FIELD(symval, mei_cl_device_id, version);
c93b76b3
TW		 1203
1204 sprintf(alias, MEI_CL_MODULE_PREFIX);
1205 sprintf(alias + strlen(alias), "%s:", (*name)[0] ? *name : "*");
1206 add_uuid(alias, *uuid);
b26864ca 1207 ADD(alias, ":", version != MEI_CL_VERSION_ANY, version);
e5354107 1208
c93b76b3 1209 strcat(alias, ":*");
e5354107
SO		 1210
1211 return 1;
1212}
e5354107 1213
3bdbb62f
AB		 1214/* Looks like: rapidio:vNdNavNadN */
1215static int do_rio_entry(const char *filename,
1216 void *symval, char *alias)
1217{
1218 DEF_FIELD(symval, rio_device_id, did);
1219 DEF_FIELD(symval, rio_device_id, vid);
1220 DEF_FIELD(symval, rio_device_id, asm_did);
1221 DEF_FIELD(symval, rio_device_id, asm_vid);
1222
1223 strcpy(alias, "rapidio:");
1224 ADD(alias, "v", vid != RIO_ANY_ID, vid);
1225 ADD(alias, "d", did != RIO_ANY_ID, did);
1226 ADD(alias, "av", asm_vid != RIO_ANY_ID, asm_vid);
1227 ADD(alias, "ad", asm_did != RIO_ANY_ID, asm_did);
1228
1229 add_wildcard(alias);
1230 return 1;
1231}
3bdbb62f 1232
289fcff4
HK		 1233/* Looks like: ulpi:vNpN */
1234static int do_ulpi_entry(const char *filename, void *symval,
1235 char *alias)
1236{
1237 DEF_FIELD(symval, ulpi_device_id, vendor);
1238 DEF_FIELD(symval, ulpi_device_id, product);
1239
1240 sprintf(alias, "ulpi:v%04xp%04x", vendor, product);
1241
1242 return 1;
1243}
289fcff4 1244
da23ac1e
SP		 1245/* Looks like: hdaudio:vNrNaN */
1246static int do_hda_entry(const char *filename, void *symval, char *alias)
1247{
1248 DEF_FIELD(symval, hda_device_id, vendor_id);
1249 DEF_FIELD(symval, hda_device_id, rev_id);
1250 DEF_FIELD(symval, hda_device_id, api_version);
1251
1252 strcpy(alias, "hdaudio:");
1253 ADD(alias, "v", vendor_id != 0, vendor_id);
1254 ADD(alias, "r", rev_id != 0, rev_id);
1255 ADD(alias, "a", api_version != 0, api_version);
1256
1257 add_wildcard(alias);
1258 return 1;
1259}
da23ac1e 1260
b5924268 1261/* Looks like: sdw:mNpNvNcN */
9251345d
VK		 1262static int do_sdw_entry(const char *filename, void *symval, char *alias)
1263{
1264 DEF_FIELD(symval, sdw_device_id, mfg_id);
1265 DEF_FIELD(symval, sdw_device_id, part_id);
b5924268
PLB		 1266 DEF_FIELD(symval, sdw_device_id, sdw_version);
1267 DEF_FIELD(symval, sdw_device_id, class_id);
9251345d
VK		 1268
1269 strcpy(alias, "sdw:");
1270 ADD(alias, "m", mfg_id != 0, mfg_id);
1271 ADD(alias, "p", part_id != 0, part_id);
b5924268
PLB		 1272 ADD(alias, "v", sdw_version != 0, sdw_version);
1273 ADD(alias, "c", class_id != 0, class_id);
9251345d
VK		 1274
1275 add_wildcard(alias);
1276 return 1;
1277}
9251345d 1278
0afef456
SY		 1279/* Looks like: fsl-mc:vNdN */
1280static int do_fsl_mc_entry(const char *filename, void *symval,
1281 char *alias)
1282{
1283 DEF_FIELD(symval, fsl_mc_device_id, vendor);
1284 DEF_FIELD_ADDR(symval, fsl_mc_device_id, obj_type);
1285
1286 sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
1287 return 1;
1288}
0afef456 1289
d1ff7024
MW		 1290/* Looks like: tbsvc:kSpNvNrN */
1291static int do_tbsvc_entry(const char *filename, void *symval, char *alias)
1292{
1293 DEF_FIELD(symval, tb_service_id, match_flags);
1294 DEF_FIELD_ADDR(symval, tb_service_id, protocol_key);
1295 DEF_FIELD(symval, tb_service_id, protocol_id);
1296 DEF_FIELD(symval, tb_service_id, protocol_version);
1297 DEF_FIELD(symval, tb_service_id, protocol_revision);
1298
1299 strcpy(alias, "tbsvc:");
1300 if (match_flags & TBSVC_MATCH_PROTOCOL_KEY)
1301 sprintf(alias + strlen(alias), "k%s", *protocol_key);
1302 else
1303 strcat(alias + strlen(alias), "k*");
1304 ADD(alias, "p", match_flags & TBSVC_MATCH_PROTOCOL_ID, protocol_id);
1305 ADD(alias, "v", match_flags & TBSVC_MATCH_PROTOCOL_VERSION,
1306 protocol_version);
1307 ADD(alias, "r", match_flags & TBSVC_MATCH_PROTOCOL_REVISION,
1308 protocol_revision);
1309
1310 add_wildcard(alias);
1311 return 1;
1312}
d1ff7024 1313
8a37d87d
HK		 1314/* Looks like: typec:idNmN */
1315static int do_typec_entry(const char *filename, void *symval, char *alias)
1316{
1317 DEF_FIELD(symval, typec_device_id, svid);
1318 DEF_FIELD(symval, typec_device_id, mode);
1319
1320 sprintf(alias, "typec:id%04X", svid);
1321 ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
1322
1323 return 1;
1324}
8a37d87d 1325
0fc1db9d
SG		 1326/* Looks like: tee:uuid */
1327static int do_tee_entry(const char *filename, void *symval, char *alias)
1328{
1329 DEF_FIELD(symval, tee_client_device_id, uuid);
1330
1331 sprintf(alias, "tee:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
1332 uuid.b[0], uuid.b[1], uuid.b[2], uuid.b[3], uuid.b[4],
1333 uuid.b[5], uuid.b[6], uuid.b[7], uuid.b[8], uuid.b[9],
1334 uuid.b[10], uuid.b[11], uuid.b[12], uuid.b[13], uuid.b[14],
1335 uuid.b[15]);
1336
1337 add_wildcard(alias);
1338 return 1;
1339}
1340
0bc44b2b
MJ		 1341/* Looks like: wmi:guid */
1342static int do_wmi_entry(const char *filename, void *symval, char *alias)
1343{
1344 int len;
1345 DEF_FIELD_ADDR(symval, wmi_device_id, guid_string);
1346
1347 if (strlen(*guid_string) != UUID_STRING_LEN) {
1348 warn("Invalid WMI device id 'wmi:%s' in '%s'\n",
1349 *guid_string, filename);
1350 return 0;
1351 }
1352
1353 len = snprintf(alias, ALIAS_SIZE, WMI_MODULE_PREFIX "%s", *guid_string);
1354 if (len < 0 || len >= ALIAS_SIZE) {
1355 warn("Could not generate all MODULE_ALIAS's in '%s'\n",
1356 filename);
1357 return 0;
1358 }
1359 return 1;
1360}
1361
e6b0de46
MS		 1362/* Looks like: mhi:S */
1363static int do_mhi_entry(const char *filename, void *symval, char *alias)
1364{
1365 DEF_FIELD_ADDR(symval, mhi_device_id, chan);
1366 sprintf(alias, MHI_DEVICE_MODALIAS_FMT, *chan);
1367
1368 return 1;
1369}
1370
626596e2
RR		 1371/* Does namelen bytes of name exactly match the symbol? */
1372static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1da177e4 1373{
626596e2
RR		 1374 if (namelen != strlen(symbol))
1375 return false;
1da177e4 1376
626596e2 1377 return memcmp(name, symbol, namelen) == 0;
1da177e4
LT		 1378}
1379
1380static void do_table(void *symval, unsigned long size,
1381 unsigned long id_size,
fb33d816 1382 const char *device_id,
f880eea6 1383 int (*do_entry)(const char *filename, void *symval, char *alias),
1da177e4
LT		 1384 struct module *mod)
1385{
1386 unsigned int i;
841f1b8f 1387 char alias[ALIAS_SIZE];
1da177e4 1388
e0049825 1389 device_id_check(mod->name, device_id, size, id_size, symval);
1da177e4
LT		 1390 /* Leave last one: it's the terminator. */
1391 size -= id_size;
1392
1393 for (i = 0; i < size; i += id_size) {
1394 if (do_entry(mod->name, symval+i, alias)) {
1da177e4
LT		 1395 buf_printf(&mod->dev_table_buf,
1396 "MODULE_ALIAS(\"%s\");\n", alias);
1397 }
1398 }
1399}
1400
ec91e78d
MY		 1401static const struct devtable devtable[] = {
1402 {"hid", SIZE_hid_device_id, do_hid_entry},
1403 {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
1404 {"pci", SIZE_pci_device_id, do_pci_entry},
1405 {"ccw", SIZE_ccw_device_id, do_ccw_entry},
1406 {"ap", SIZE_ap_device_id, do_ap_entry},
1407 {"css", SIZE_css_device_id, do_css_entry},
1408 {"serio", SIZE_serio_device_id, do_serio_entry},
1409 {"acpi", SIZE_acpi_device_id, do_acpi_entry},
1410 {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
1411 {"vio", SIZE_vio_device_id, do_vio_entry},
1412 {"input", SIZE_input_device_id, do_input_entry},
1413 {"eisa", SIZE_eisa_device_id, do_eisa_entry},
1414 {"parisc", SIZE_parisc_device_id, do_parisc_entry},
1415 {"sdio", SIZE_sdio_device_id, do_sdio_entry},
1416 {"ssb", SIZE_ssb_device_id, do_ssb_entry},
1417 {"bcma", SIZE_bcma_device_id, do_bcma_entry},
1418 {"virtio", SIZE_virtio_device_id, do_virtio_entry},
1419 {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
1420 {"rpmsg", SIZE_rpmsg_device_id, do_rpmsg_entry},
1421 {"i2c", SIZE_i2c_device_id, do_i2c_entry},
1ce589ad 1422 {"i3c", SIZE_i3c_device_id, do_i3c_entry},
ec91e78d
MY		 1423 {"spi", SIZE_spi_device_id, do_spi_entry},
1424 {"dmi", SIZE_dmi_system_id, do_dmi_entry},
1425 {"platform", SIZE_platform_device_id, do_platform_entry},
1426 {"mdio", SIZE_mdio_device_id, do_mdio_entry},
1427 {"zorro", SIZE_zorro_device_id, do_zorro_entry},
1428 {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
1429 {"ipack", SIZE_ipack_device_id, do_ipack_entry},
1430 {"amba", SIZE_amba_id, do_amba_entry},
1431 {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
1432 {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
1433 {"cpu", SIZE_cpu_feature, do_cpu_entry},
1434 {"mei", SIZE_mei_cl_device_id, do_mei_entry},
1435 {"rapidio", SIZE_rio_device_id, do_rio_entry},
1436 {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
1437 {"hdaudio", SIZE_hda_device_id, do_hda_entry},
1438 {"sdw", SIZE_sdw_device_id, do_sdw_entry},
1439 {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
1440 {"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
1441 {"typec", SIZE_typec_device_id, do_typec_entry},
0fc1db9d 1442 {"tee", SIZE_tee_client_device_id, do_tee_entry},
0bc44b2b 1443 {"wmi", SIZE_wmi_device_id, do_wmi_entry},
e6b0de46 1444 {"mhi", SIZE_mhi_device_id, do_mhi_entry},
ec91e78d
MY		 1445};
1446
1da177e4
LT		 1447/* Create MODULE_ALIAS() statements.
1448 * At this time, we cannot write the actual output C source yet,
1449 * so we write into the mod->dev_table_buf buffer. */
1450void handle_moddevtable(struct module *mod, struct elf_info *info,
1451 Elf_Sym *sym, const char *symname)
1452{
1453 void *symval;
e0049825 1454 char *zeros = NULL;
21bdd17b 1455 const char *name, *identifier;
626596e2 1456 unsigned int namelen;
1da177e4
LT		 1457
1458 /* We're looking for a section relative symbol */
1ce53adf 1459 if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
1da177e4
LT		 1460 return;
1461
e88aa7bb
DM		 1462 /* We're looking for an object */
1463 if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
1464 return;
1465
153e04b3
MY		 1466 /* All our symbols are of form __mod_<name>__<identifier>_device_table. */
1467 if (strncmp(symname, "__mod_", strlen("__mod_")))
626596e2 1468 return;
153e04b3 1469 name = symname + strlen("__mod_");
626596e2
RR		 1470 namelen = strlen(name);
1471 if (namelen < strlen("_device_table"))
1472 return;
1473 if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
1474 return;
21bdd17b
TG		 1475 identifier = strstr(name, "__");
1476 if (!identifier)
1477 return;
1478 namelen = identifier - name;
626596e2 1479
e0049825 1480 /* Handle all-NULL symbols allocated into .bss */
1ce53adf 1481 if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
e0049825
KC		 1482 zeros = calloc(1, sym->st_size);
1483 symval = zeros;
1484 } else {
1485 symval = (void *)info->hdr
1ce53adf 1486 + info->sechdrs[get_secindex(info, sym)].sh_offset
e0049825
KC		 1487 + sym->st_value;
1488 }
1da177e4 1489
626596e2
RR		 1490 /* First handle the "special" cases */
1491 if (sym_is(name, namelen, "usb"))
b19dcd93 1492 do_usb_table(symval, sym->st_size, mod);
acbef7b7
PZ		 1493 if (sym_is(name, namelen, "of"))
1494 do_of_table(symval, sym->st_size, mod);
626596e2 1495 else if (sym_is(name, namelen, "pnp"))
22454cb9 1496 do_pnp_device_entry(symval, sym->st_size, mod);
626596e2 1497 else if (sym_is(name, namelen, "pnp_card"))
0c81eed4 1498 do_pnp_card_entries(symval, sym->st_size, mod);
626596e2 1499 else {
ec91e78d
MY		 1500 int i;
1501
1502 for (i = 0; i < ARRAY_SIZE(devtable); i++) {
1503 const struct devtable *p = &devtable[i];
626596e2 1504
ec91e78d
MY		 1505 if (sym_is(name, namelen, p->device_id)) {
1506 do_table(symval, sym->st_size, p->id_size,
f880eea6 1507 p->device_id, p->do_entry, mod);
626596e2
RR		 1508 break;
1509 }
1510 }
1511 }
e0049825 1512 free(zeros);
1da177e4
LT		 1513}
1514
1515/* Now add out buffered information to the generated C source */
1516void add_moddevtable(struct buffer *buf, struct module *mod)
1517{
1518 buf_printf(buf, "\n");
1519 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
1520 free(mod->dev_table_buf.p);
1521}
Linux 6.x block layer and io_uring tree(s)