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.
5 * Copyright 2002-2003 Rusty Russell, IBM Corporation
6 * 2003 Kai Germaschewski
9 * This software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
14 #include "devicetable-offsets.h"
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
19 typedef Elf32_Addr kernel_ulong_t
;
20 #define BITS_PER_LONG 32
22 typedef Elf64_Addr kernel_ulong_t
;
23 #define BITS_PER_LONG 64
34 typedef uint32_t __u32
;
35 typedef uint16_t __u16
;
36 typedef unsigned char __u8
;
41 /* Big exception to the "don't include kernel headers into userspace, which
42 * even potentially has different endianness and word sizes, since
43 * we handle those differences explicitly below */
44 #include "../../include/linux/mod_devicetable.h"
46 /* This array collects all instances that use the generic do_table */
48 const char *device_id
; /* name of table, __mod_<name>__*_device_table. */
49 unsigned long id_size
;
53 #define ___cat(a,b) a ## b
54 #define __cat(a,b) ___cat(a,b)
56 /* we need some special handling for this host tool running eventually on
57 * Darwin. The Mach-O section handling is a bit different than ELF section
58 * handling. The differnces in detail are:
59 * a) we have segments which have sections
60 * b) we need a API call to get the respective section symbols */
62 #include <mach-o/getsect.h>
64 #define INIT_SECTION(name) do { \
65 unsigned long name ## _len; \
66 char *__cat(pstart_,name) = getsectdata("__TEXT", \
67 #name, &__cat(name,_len)); \
68 char *__cat(pstop_,name) = __cat(pstart_,name) + \
70 __cat(__start_,name) = (void *)__cat(pstart_,name); \
71 __cat(__stop_,name) = (void *)__cat(pstop_,name); \
73 #define SECTION(name) __attribute__((section("__TEXT, " #name)))
75 struct devtable
**__start___devtable
, **__stop___devtable
;
77 #define INIT_SECTION(name) /* no-op for ELF */
78 #define SECTION(name) __attribute__((section(#name)))
80 /* We construct a table of pointers in an ELF section (pointers generally
81 * go unpadded by gcc). ld creates boundary syms for us. */
82 extern struct devtable
*__start___devtable
[], *__stop___devtable
[];
86 # if __GNUC__ == 3 && __GNUC_MINOR__ < 3
87 # define __used __attribute__((__unused__))
89 # define __used __attribute__((__used__))
93 /* Define a variable f that holds the value of field f of struct devid
96 #define DEF_FIELD(m, devid, f) \
97 typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f))
98 /* Define a variable f that holds the address of field f of struct devid
99 * based at address m. Due to the way typeof works, for a field of type
100 * T[N] the variable has type T(*)[N], _not_ T*.
102 #define DEF_FIELD_ADDR(m, devid, f) \
103 typeof(((struct devid *)0)->f) *f = ((m) + OFF_##devid##_##f)
105 /* Add a table entry. We test function type matches while we're here. */
106 #define ADD_TO_DEVTABLE(device_id, type, function) \
107 static struct devtable __cat(devtable,__LINE__) = { \
108 device_id + 0*sizeof((function)((const char *)NULL, \
111 SIZE_##type, (function) }; \
112 static struct devtable *SECTION(__devtable) __used \
113 __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__)
115 #define ADD(str, sep, cond, field) \
119 sprintf(str + strlen(str), \
120 sizeof(field) == 1 ? "%02X" : \
121 sizeof(field) == 2 ? "%04X" : \
122 sizeof(field) == 4 ? "%08X" : "", \
125 sprintf(str + strlen(str), "*"); \
128 /* End in a wildcard, for future extension */
129 static inline void add_wildcard(char *str
)
131 int len
= strlen(str
);
133 if (str
[len
- 1] != '*')
134 strcat(str
+ len
, "*");
137 static inline void add_uuid(char *str
, uuid_le uuid
)
139 int len
= strlen(str
);
141 sprintf(str
+ len
, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
142 uuid
.b
[3], uuid
.b
[2], uuid
.b
[1], uuid
.b
[0],
143 uuid
.b
[5], uuid
.b
[4], uuid
.b
[7], uuid
.b
[6],
144 uuid
.b
[8], uuid
.b
[9], uuid
.b
[10], uuid
.b
[11],
145 uuid
.b
[12], uuid
.b
[13], uuid
.b
[14], uuid
.b
[15]);
149 * Check that sizeof(device_id type) are consistent with size of section
150 * in .o file. If in-consistent then userspace and kernel does not agree
151 * on actual size which is a bug.
152 * Also verify that the final entry in the table is all zeros.
153 * Ignore both checks if build host differ from target host and size differs.
155 static void device_id_check(const char *modname
, const char *device_id
,
156 unsigned long size
, unsigned long id_size
,
161 if (size
% id_size
|| size
< id_size
) {
162 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
164 "section __mod_%s__<identifier>_device_table=%lu.\n"
165 "Fix definition of struct %s_device_id "
166 "in mod_devicetable.h\n",
167 modname
, device_id
, id_size
, device_id
, size
, device_id
);
169 /* Verify last one is a terminator */
170 for (i
= 0; i
< id_size
; i
++ ) {
171 if (*(uint8_t*)(symval
+size
-id_size
+i
)) {
172 fprintf(stderr
,"%s: struct %s_device_id is %lu bytes. "
173 "The last of %lu is:\n",
174 modname
, device_id
, id_size
, size
/ id_size
);
175 for (i
= 0; i
< id_size
; i
++ )
176 fprintf(stderr
,"0x%02x ",
177 *(uint8_t*)(symval
+size
-id_size
+i
) );
178 fprintf(stderr
,"\n");
179 fatal("%s: struct %s_device_id is not terminated "
180 "with a NULL entry!\n", modname
, device_id
);
185 /* USB is special because the bcdDevice can be matched against a numeric range */
186 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
187 static void do_usb_entry(void *symval
,
188 unsigned int bcdDevice_initial
, int bcdDevice_initial_digits
,
189 unsigned char range_lo
, unsigned char range_hi
,
190 unsigned char max
, struct module
*mod
)
193 DEF_FIELD(symval
, usb_device_id
, match_flags
);
194 DEF_FIELD(symval
, usb_device_id
, idVendor
);
195 DEF_FIELD(symval
, usb_device_id
, idProduct
);
196 DEF_FIELD(symval
, usb_device_id
, bcdDevice_lo
);
197 DEF_FIELD(symval
, usb_device_id
, bDeviceClass
);
198 DEF_FIELD(symval
, usb_device_id
, bDeviceSubClass
);
199 DEF_FIELD(symval
, usb_device_id
, bDeviceProtocol
);
200 DEF_FIELD(symval
, usb_device_id
, bInterfaceClass
);
201 DEF_FIELD(symval
, usb_device_id
, bInterfaceSubClass
);
202 DEF_FIELD(symval
, usb_device_id
, bInterfaceProtocol
);
203 DEF_FIELD(symval
, usb_device_id
, bInterfaceNumber
);
205 strcpy(alias
, "usb:");
206 ADD(alias
, "v", match_flags
&USB_DEVICE_ID_MATCH_VENDOR
,
208 ADD(alias
, "p", match_flags
&USB_DEVICE_ID_MATCH_PRODUCT
,
212 if (bcdDevice_initial_digits
)
213 sprintf(alias
+ strlen(alias
), "%0*X",
214 bcdDevice_initial_digits
, bcdDevice_initial
);
215 if (range_lo
== range_hi
)
216 sprintf(alias
+ strlen(alias
), "%X", range_lo
);
217 else if (range_lo
> 0 || range_hi
< max
) {
218 if (range_lo
> 0x9 || range_hi
< 0xA)
219 sprintf(alias
+ strlen(alias
),
224 sprintf(alias
+ strlen(alias
),
225 range_lo
< 0x9 ? "[%X-9" : "[%X",
227 sprintf(alias
+ strlen(alias
),
228 range_hi
> 0xA ? "A-%X]" : "%X]",
232 if (bcdDevice_initial_digits
< (sizeof(bcdDevice_lo
) * 2 - 1))
235 ADD(alias
, "dc", match_flags
&USB_DEVICE_ID_MATCH_DEV_CLASS
,
237 ADD(alias
, "dsc", match_flags
&USB_DEVICE_ID_MATCH_DEV_SUBCLASS
,
239 ADD(alias
, "dp", match_flags
&USB_DEVICE_ID_MATCH_DEV_PROTOCOL
,
241 ADD(alias
, "ic", match_flags
&USB_DEVICE_ID_MATCH_INT_CLASS
,
243 ADD(alias
, "isc", match_flags
&USB_DEVICE_ID_MATCH_INT_SUBCLASS
,
245 ADD(alias
, "ip", match_flags
&USB_DEVICE_ID_MATCH_INT_PROTOCOL
,
247 ADD(alias
, "in", match_flags
&USB_DEVICE_ID_MATCH_INT_NUMBER
,
251 buf_printf(&mod
->dev_table_buf
,
252 "MODULE_ALIAS(\"%s\");\n", alias
);
255 /* Handles increment/decrement of BCD formatted integers */
256 /* Returns the previous value, so it works like i++ or i-- */
257 static unsigned int incbcd(unsigned int *bcd
,
262 unsigned int init
= *bcd
, i
, j
;
263 unsigned long long c
, dec
= 0;
265 /* If bcd is not in BCD format, just increment */
271 /* Convert BCD to Decimal */
272 for (i
=0 ; i
< chars
; i
++) {
273 c
= (*bcd
>> (i
<< 2)) & 0xf;
274 c
= c
> 9 ? 9 : c
; /* force to bcd just in case */
275 for (j
=0 ; j
< i
; j
++)
280 /* Do our increment/decrement */
284 /* Convert back to BCD */
285 for (i
=0 ; i
< chars
; i
++) {
286 for (c
=1,j
=0 ; j
< i
; j
++)
289 *bcd
+= c
<< (i
<< 2);
294 static void do_usb_entry_multi(void *symval
, struct module
*mod
)
296 unsigned int devlo
, devhi
;
297 unsigned char chi
, clo
, max
;
300 DEF_FIELD(symval
, usb_device_id
, match_flags
);
301 DEF_FIELD(symval
, usb_device_id
, idVendor
);
302 DEF_FIELD(symval
, usb_device_id
, idProduct
);
303 DEF_FIELD(symval
, usb_device_id
, bcdDevice_lo
);
304 DEF_FIELD(symval
, usb_device_id
, bcdDevice_hi
);
305 DEF_FIELD(symval
, usb_device_id
, bDeviceClass
);
306 DEF_FIELD(symval
, usb_device_id
, bInterfaceClass
);
308 devlo
= match_flags
& USB_DEVICE_ID_MATCH_DEV_LO
?
310 devhi
= match_flags
& USB_DEVICE_ID_MATCH_DEV_HI
?
311 bcdDevice_hi
: ~0x0U
;
313 /* Figure out if this entry is in bcd or hex format */
314 max
= 0x9; /* Default to decimal format */
315 for (ndigits
= 0 ; ndigits
< sizeof(bcdDevice_lo
) * 2 ; ndigits
++) {
316 clo
= (devlo
>> (ndigits
<< 2)) & 0xf;
317 chi
= ((devhi
> 0x9999 ? 0x9999 : devhi
) >> (ndigits
<< 2)) & 0xf;
318 if (clo
> max
|| chi
> max
) {
325 * Some modules (visor) have empty slots as placeholder for
326 * run-time specification that results in catch-all alias
328 if (!(idVendor
| idProduct
| bDeviceClass
| bInterfaceClass
))
331 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
332 for (ndigits
= sizeof(bcdDevice_lo
) * 2 - 1; devlo
<= devhi
; ndigits
--) {
335 if (chi
> max
) /* If we are in bcd mode, truncate if necessary */
340 if (devlo
== devhi
|| !ndigits
) {
341 do_usb_entry(symval
, devlo
, ndigits
, clo
, chi
, max
, mod
);
347 incbcd(&devlo
, 1, max
,
348 sizeof(bcdDevice_lo
) * 2),
349 ndigits
, clo
, max
, max
, mod
);
353 incbcd(&devhi
, -1, max
,
354 sizeof(bcdDevice_lo
) * 2),
355 ndigits
, 0x0, chi
, max
, mod
);
359 static void do_usb_table(void *symval
, unsigned long size
,
363 const unsigned long id_size
= SIZE_usb_device_id
;
365 device_id_check(mod
->name
, "usb", size
, id_size
, symval
);
367 /* Leave last one: it's the terminator. */
370 for (i
= 0; i
< size
; i
+= id_size
)
371 do_usb_entry_multi(symval
+ i
, mod
);
374 static void do_of_entry_multi(void *symval
, struct module
*mod
)
380 DEF_FIELD_ADDR(symval
, of_device_id
, name
);
381 DEF_FIELD_ADDR(symval
, of_device_id
, type
);
382 DEF_FIELD_ADDR(symval
, of_device_id
, compatible
);
384 len
= sprintf(alias
, "of:N%sT%s", (*name
)[0] ? *name
: "*",
385 (*type
)[0] ? *type
: "*");
387 if ((*compatible
)[0])
388 sprintf(&alias
[len
], "%sC%s", (*type
)[0] ? "*" : "",
391 /* Replace all whitespace with underscores */
392 for (tmp
= alias
; tmp
&& *tmp
; tmp
++)
396 buf_printf(&mod
->dev_table_buf
, "MODULE_ALIAS(\"%s\");\n", alias
);
399 buf_printf(&mod
->dev_table_buf
, "MODULE_ALIAS(\"%s\");\n", alias
);
402 static void do_of_table(void *symval
, unsigned long size
,
406 const unsigned long id_size
= SIZE_of_device_id
;
408 device_id_check(mod
->name
, "of", size
, id_size
, symval
);
410 /* Leave last one: it's the terminator. */
413 for (i
= 0; i
< size
; i
+= id_size
)
414 do_of_entry_multi(symval
+ i
, mod
);
417 /* Looks like: hid:bNvNpN */
418 static int do_hid_entry(const char *filename
,
419 void *symval
, char *alias
)
421 DEF_FIELD(symval
, hid_device_id
, bus
);
422 DEF_FIELD(symval
, hid_device_id
, group
);
423 DEF_FIELD(symval
, hid_device_id
, vendor
);
424 DEF_FIELD(symval
, hid_device_id
, product
);
426 sprintf(alias
, "hid:");
427 ADD(alias
, "b", bus
!= HID_BUS_ANY
, bus
);
428 ADD(alias
, "g", group
!= HID_GROUP_ANY
, group
);
429 ADD(alias
, "v", vendor
!= HID_ANY_ID
, vendor
);
430 ADD(alias
, "p", product
!= HID_ANY_ID
, product
);
434 ADD_TO_DEVTABLE("hid", hid_device_id
, do_hid_entry
);
436 /* Looks like: ieee1394:venNmoNspNverN */
437 static int do_ieee1394_entry(const char *filename
,
438 void *symval
, char *alias
)
440 DEF_FIELD(symval
, ieee1394_device_id
, match_flags
);
441 DEF_FIELD(symval
, ieee1394_device_id
, vendor_id
);
442 DEF_FIELD(symval
, ieee1394_device_id
, model_id
);
443 DEF_FIELD(symval
, ieee1394_device_id
, specifier_id
);
444 DEF_FIELD(symval
, ieee1394_device_id
, version
);
446 strcpy(alias
, "ieee1394:");
447 ADD(alias
, "ven", match_flags
& IEEE1394_MATCH_VENDOR_ID
,
449 ADD(alias
, "mo", match_flags
& IEEE1394_MATCH_MODEL_ID
,
451 ADD(alias
, "sp", match_flags
& IEEE1394_MATCH_SPECIFIER_ID
,
453 ADD(alias
, "ver", match_flags
& IEEE1394_MATCH_VERSION
,
459 ADD_TO_DEVTABLE("ieee1394", ieee1394_device_id
, do_ieee1394_entry
);
461 /* Looks like: pci:vNdNsvNsdNbcNscNiN. */
462 static int do_pci_entry(const char *filename
,
463 void *symval
, char *alias
)
465 /* Class field can be divided into these three. */
466 unsigned char baseclass
, subclass
, interface
,
467 baseclass_mask
, subclass_mask
, interface_mask
;
469 DEF_FIELD(symval
, pci_device_id
, vendor
);
470 DEF_FIELD(symval
, pci_device_id
, device
);
471 DEF_FIELD(symval
, pci_device_id
, subvendor
);
472 DEF_FIELD(symval
, pci_device_id
, subdevice
);
473 DEF_FIELD(symval
, pci_device_id
, class);
474 DEF_FIELD(symval
, pci_device_id
, class_mask
);
476 strcpy(alias
, "pci:");
477 ADD(alias
, "v", vendor
!= PCI_ANY_ID
, vendor
);
478 ADD(alias
, "d", device
!= PCI_ANY_ID
, device
);
479 ADD(alias
, "sv", subvendor
!= PCI_ANY_ID
, subvendor
);
480 ADD(alias
, "sd", subdevice
!= PCI_ANY_ID
, subdevice
);
482 baseclass
= (class) >> 16;
483 baseclass_mask
= (class_mask
) >> 16;
484 subclass
= (class) >> 8;
485 subclass_mask
= (class_mask
) >> 8;
487 interface_mask
= class_mask
;
489 if ((baseclass_mask
!= 0 && baseclass_mask
!= 0xFF)
490 || (subclass_mask
!= 0 && subclass_mask
!= 0xFF)
491 || (interface_mask
!= 0 && interface_mask
!= 0xFF)) {
492 warn("Can't handle masks in %s:%04X\n",
493 filename
, class_mask
);
497 ADD(alias
, "bc", baseclass_mask
== 0xFF, baseclass
);
498 ADD(alias
, "sc", subclass_mask
== 0xFF, subclass
);
499 ADD(alias
, "i", interface_mask
== 0xFF, interface
);
503 ADD_TO_DEVTABLE("pci", pci_device_id
, do_pci_entry
);
505 /* looks like: "ccw:tNmNdtNdmN" */
506 static int do_ccw_entry(const char *filename
,
507 void *symval
, char *alias
)
509 DEF_FIELD(symval
, ccw_device_id
, match_flags
);
510 DEF_FIELD(symval
, ccw_device_id
, cu_type
);
511 DEF_FIELD(symval
, ccw_device_id
, cu_model
);
512 DEF_FIELD(symval
, ccw_device_id
, dev_type
);
513 DEF_FIELD(symval
, ccw_device_id
, dev_model
);
515 strcpy(alias
, "ccw:");
516 ADD(alias
, "t", match_flags
&CCW_DEVICE_ID_MATCH_CU_TYPE
,
518 ADD(alias
, "m", match_flags
&CCW_DEVICE_ID_MATCH_CU_MODEL
,
520 ADD(alias
, "dt", match_flags
&CCW_DEVICE_ID_MATCH_DEVICE_TYPE
,
522 ADD(alias
, "dm", match_flags
&CCW_DEVICE_ID_MATCH_DEVICE_MODEL
,
527 ADD_TO_DEVTABLE("ccw", ccw_device_id
, do_ccw_entry
);
529 /* looks like: "ap:tN" */
530 static int do_ap_entry(const char *filename
,
531 void *symval
, char *alias
)
533 DEF_FIELD(symval
, ap_device_id
, dev_type
);
535 sprintf(alias
, "ap:t%02X*", dev_type
);
538 ADD_TO_DEVTABLE("ap", ap_device_id
, do_ap_entry
);
540 /* looks like: "css:tN" */
541 static int do_css_entry(const char *filename
,
542 void *symval
, char *alias
)
544 DEF_FIELD(symval
, css_device_id
, type
);
546 sprintf(alias
, "css:t%01X", type
);
549 ADD_TO_DEVTABLE("css", css_device_id
, do_css_entry
);
551 /* Looks like: "serio:tyNprNidNexN" */
552 static int do_serio_entry(const char *filename
,
553 void *symval
, char *alias
)
555 DEF_FIELD(symval
, serio_device_id
, type
);
556 DEF_FIELD(symval
, serio_device_id
, proto
);
557 DEF_FIELD(symval
, serio_device_id
, id
);
558 DEF_FIELD(symval
, serio_device_id
, extra
);
560 strcpy(alias
, "serio:");
561 ADD(alias
, "ty", type
!= SERIO_ANY
, type
);
562 ADD(alias
, "pr", proto
!= SERIO_ANY
, proto
);
563 ADD(alias
, "id", id
!= SERIO_ANY
, id
);
564 ADD(alias
, "ex", extra
!= SERIO_ANY
, extra
);
569 ADD_TO_DEVTABLE("serio", serio_device_id
, do_serio_entry
);
571 /* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
572 * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
574 * NOTE: Each driver should use one of the following : _HID, _CIDs
575 * or _CLS. Also, bb, ss, and pp can be substituted with ??
576 * as don't care byte.
578 static int do_acpi_entry(const char *filename
,
579 void *symval
, char *alias
)
581 DEF_FIELD_ADDR(symval
, acpi_device_id
, id
);
582 DEF_FIELD_ADDR(symval
, acpi_device_id
, cls
);
583 DEF_FIELD_ADDR(symval
, acpi_device_id
, cls_msk
);
585 if (id
&& strlen((const char *)*id
))
586 sprintf(alias
, "acpi*:%s:*", *id
);
588 int i
, byte_shift
, cnt
= 0;
591 sprintf(&alias
[cnt
], "acpi*:");
593 for (i
= 1; i
<= 3; i
++) {
594 byte_shift
= 8 * (3-i
);
595 msk
= (*cls_msk
>> byte_shift
) & 0xFF;
597 sprintf(&alias
[cnt
], "%02x",
598 (*cls
>> byte_shift
) & 0xFF);
600 sprintf(&alias
[cnt
], "??");
603 sprintf(&alias
[cnt
], ":*");
607 ADD_TO_DEVTABLE("acpi", acpi_device_id
, do_acpi_entry
);
609 /* looks like: "pnp:dD" */
610 static void do_pnp_device_entry(void *symval
, unsigned long size
,
613 const unsigned long id_size
= SIZE_pnp_device_id
;
614 const unsigned int count
= (size
/ id_size
)-1;
617 device_id_check(mod
->name
, "pnp", size
, id_size
, symval
);
619 for (i
= 0; i
< count
; i
++) {
620 DEF_FIELD_ADDR(symval
+ i
*id_size
, pnp_device_id
, id
);
621 char acpi_id
[sizeof(*id
)];
624 buf_printf(&mod
->dev_table_buf
,
625 "MODULE_ALIAS(\"pnp:d%s*\");\n", *id
);
627 /* fix broken pnp bus lowercasing */
628 for (j
= 0; j
< sizeof(acpi_id
); j
++)
629 acpi_id
[j
] = toupper((*id
)[j
]);
630 buf_printf(&mod
->dev_table_buf
,
631 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id
);
635 /* looks like: "pnp:dD" for every device of the card */
636 static void do_pnp_card_entries(void *symval
, unsigned long size
,
639 const unsigned long id_size
= SIZE_pnp_card_device_id
;
640 const unsigned int count
= (size
/ id_size
)-1;
643 device_id_check(mod
->name
, "pnp", size
, id_size
, symval
);
645 for (i
= 0; i
< count
; i
++) {
647 DEF_FIELD_ADDR(symval
+ i
*id_size
, pnp_card_device_id
, devs
);
649 for (j
= 0; j
< PNP_MAX_DEVICES
; j
++) {
650 const char *id
= (char *)(*devs
)[j
].id
;
657 /* find duplicate, already added value */
658 for (i2
= 0; i2
< i
&& !dup
; i2
++) {
659 DEF_FIELD_ADDR(symval
+ i2
*id_size
, pnp_card_device_id
, devs
);
661 for (j2
= 0; j2
< PNP_MAX_DEVICES
; j2
++) {
662 const char *id2
= (char *)(*devs
)[j2
].id
;
667 if (!strcmp(id
, id2
)) {
674 /* add an individual alias for every device entry */
676 char acpi_id
[PNP_ID_LEN
];
679 buf_printf(&mod
->dev_table_buf
,
680 "MODULE_ALIAS(\"pnp:d%s*\");\n", id
);
682 /* fix broken pnp bus lowercasing */
683 for (k
= 0; k
< sizeof(acpi_id
); k
++)
684 acpi_id
[k
] = toupper(id
[k
]);
685 buf_printf(&mod
->dev_table_buf
,
686 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id
);
692 /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
693 static int do_pcmcia_entry(const char *filename
,
694 void *symval
, char *alias
)
697 DEF_FIELD(symval
, pcmcia_device_id
, match_flags
);
698 DEF_FIELD(symval
, pcmcia_device_id
, manf_id
);
699 DEF_FIELD(symval
, pcmcia_device_id
, card_id
);
700 DEF_FIELD(symval
, pcmcia_device_id
, func_id
);
701 DEF_FIELD(symval
, pcmcia_device_id
, function
);
702 DEF_FIELD(symval
, pcmcia_device_id
, device_no
);
703 DEF_FIELD_ADDR(symval
, pcmcia_device_id
, prod_id_hash
);
705 for (i
=0; i
<4; i
++) {
706 (*prod_id_hash
)[i
] = TO_NATIVE((*prod_id_hash
)[i
]);
709 strcpy(alias
, "pcmcia:");
710 ADD(alias
, "m", match_flags
& PCMCIA_DEV_ID_MATCH_MANF_ID
,
712 ADD(alias
, "c", match_flags
& PCMCIA_DEV_ID_MATCH_CARD_ID
,
714 ADD(alias
, "f", match_flags
& PCMCIA_DEV_ID_MATCH_FUNC_ID
,
716 ADD(alias
, "fn", match_flags
& PCMCIA_DEV_ID_MATCH_FUNCTION
,
718 ADD(alias
, "pfn", match_flags
& PCMCIA_DEV_ID_MATCH_DEVICE_NO
,
720 ADD(alias
, "pa", match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID1
, (*prod_id_hash
)[0]);
721 ADD(alias
, "pb", match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID2
, (*prod_id_hash
)[1]);
722 ADD(alias
, "pc", match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID3
, (*prod_id_hash
)[2]);
723 ADD(alias
, "pd", match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID4
, (*prod_id_hash
)[3]);
728 ADD_TO_DEVTABLE("pcmcia", pcmcia_device_id
, do_pcmcia_entry
);
730 static int do_vio_entry(const char *filename
, void *symval
,
734 DEF_FIELD_ADDR(symval
, vio_device_id
, type
);
735 DEF_FIELD_ADDR(symval
, vio_device_id
, compat
);
737 sprintf(alias
, "vio:T%sS%s", (*type
)[0] ? *type
: "*",
738 (*compat
)[0] ? *compat
: "*");
740 /* Replace all whitespace with underscores */
741 for (tmp
= alias
; tmp
&& *tmp
; tmp
++)
748 ADD_TO_DEVTABLE("vio", vio_device_id
, do_vio_entry
);
750 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
752 static void do_input(char *alias
,
753 kernel_ulong_t
*arr
, unsigned int min
, unsigned int max
)
757 for (i
= min
/ BITS_PER_LONG
; i
< max
/ BITS_PER_LONG
+ 1; i
++)
758 arr
[i
] = TO_NATIVE(arr
[i
]);
759 for (i
= min
; i
< max
; i
++)
760 if (arr
[i
/ BITS_PER_LONG
] & (1L << (i
%BITS_PER_LONG
)))
761 sprintf(alias
+ strlen(alias
), "%X,*", i
);
764 /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
765 static int do_input_entry(const char *filename
, void *symval
,
768 DEF_FIELD(symval
, input_device_id
, flags
);
769 DEF_FIELD(symval
, input_device_id
, bustype
);
770 DEF_FIELD(symval
, input_device_id
, vendor
);
771 DEF_FIELD(symval
, input_device_id
, product
);
772 DEF_FIELD(symval
, input_device_id
, version
);
773 DEF_FIELD_ADDR(symval
, input_device_id
, evbit
);
774 DEF_FIELD_ADDR(symval
, input_device_id
, keybit
);
775 DEF_FIELD_ADDR(symval
, input_device_id
, relbit
);
776 DEF_FIELD_ADDR(symval
, input_device_id
, absbit
);
777 DEF_FIELD_ADDR(symval
, input_device_id
, mscbit
);
778 DEF_FIELD_ADDR(symval
, input_device_id
, ledbit
);
779 DEF_FIELD_ADDR(symval
, input_device_id
, sndbit
);
780 DEF_FIELD_ADDR(symval
, input_device_id
, ffbit
);
781 DEF_FIELD_ADDR(symval
, input_device_id
, swbit
);
783 sprintf(alias
, "input:");
785 ADD(alias
, "b", flags
& INPUT_DEVICE_ID_MATCH_BUS
, bustype
);
786 ADD(alias
, "v", flags
& INPUT_DEVICE_ID_MATCH_VENDOR
, vendor
);
787 ADD(alias
, "p", flags
& INPUT_DEVICE_ID_MATCH_PRODUCT
, product
);
788 ADD(alias
, "e", flags
& INPUT_DEVICE_ID_MATCH_VERSION
, version
);
790 sprintf(alias
+ strlen(alias
), "-e*");
791 if (flags
& INPUT_DEVICE_ID_MATCH_EVBIT
)
792 do_input(alias
, *evbit
, 0, INPUT_DEVICE_ID_EV_MAX
);
793 sprintf(alias
+ strlen(alias
), "k*");
794 if (flags
& INPUT_DEVICE_ID_MATCH_KEYBIT
)
795 do_input(alias
, *keybit
,
796 INPUT_DEVICE_ID_KEY_MIN_INTERESTING
,
797 INPUT_DEVICE_ID_KEY_MAX
);
798 sprintf(alias
+ strlen(alias
), "r*");
799 if (flags
& INPUT_DEVICE_ID_MATCH_RELBIT
)
800 do_input(alias
, *relbit
, 0, INPUT_DEVICE_ID_REL_MAX
);
801 sprintf(alias
+ strlen(alias
), "a*");
802 if (flags
& INPUT_DEVICE_ID_MATCH_ABSBIT
)
803 do_input(alias
, *absbit
, 0, INPUT_DEVICE_ID_ABS_MAX
);
804 sprintf(alias
+ strlen(alias
), "m*");
805 if (flags
& INPUT_DEVICE_ID_MATCH_MSCIT
)
806 do_input(alias
, *mscbit
, 0, INPUT_DEVICE_ID_MSC_MAX
);
807 sprintf(alias
+ strlen(alias
), "l*");
808 if (flags
& INPUT_DEVICE_ID_MATCH_LEDBIT
)
809 do_input(alias
, *ledbit
, 0, INPUT_DEVICE_ID_LED_MAX
);
810 sprintf(alias
+ strlen(alias
), "s*");
811 if (flags
& INPUT_DEVICE_ID_MATCH_SNDBIT
)
812 do_input(alias
, *sndbit
, 0, INPUT_DEVICE_ID_SND_MAX
);
813 sprintf(alias
+ strlen(alias
), "f*");
814 if (flags
& INPUT_DEVICE_ID_MATCH_FFBIT
)
815 do_input(alias
, *ffbit
, 0, INPUT_DEVICE_ID_FF_MAX
);
816 sprintf(alias
+ strlen(alias
), "w*");
817 if (flags
& INPUT_DEVICE_ID_MATCH_SWBIT
)
818 do_input(alias
, *swbit
, 0, INPUT_DEVICE_ID_SW_MAX
);
821 ADD_TO_DEVTABLE("input", input_device_id
, do_input_entry
);
823 static int do_eisa_entry(const char *filename
, void *symval
,
826 DEF_FIELD_ADDR(symval
, eisa_device_id
, sig
);
828 sprintf(alias
, EISA_DEVICE_MODALIAS_FMT
"*", *sig
);
833 ADD_TO_DEVTABLE("eisa", eisa_device_id
, do_eisa_entry
);
835 /* Looks like: parisc:tNhvNrevNsvN */
836 static int do_parisc_entry(const char *filename
, void *symval
,
839 DEF_FIELD(symval
, parisc_device_id
, hw_type
);
840 DEF_FIELD(symval
, parisc_device_id
, hversion
);
841 DEF_FIELD(symval
, parisc_device_id
, hversion_rev
);
842 DEF_FIELD(symval
, parisc_device_id
, sversion
);
844 strcpy(alias
, "parisc:");
845 ADD(alias
, "t", hw_type
!= PA_HWTYPE_ANY_ID
, hw_type
);
846 ADD(alias
, "hv", hversion
!= PA_HVERSION_ANY_ID
, hversion
);
847 ADD(alias
, "rev", hversion_rev
!= PA_HVERSION_REV_ANY_ID
, hversion_rev
);
848 ADD(alias
, "sv", sversion
!= PA_SVERSION_ANY_ID
, sversion
);
853 ADD_TO_DEVTABLE("parisc", parisc_device_id
, do_parisc_entry
);
855 /* Looks like: sdio:cNvNdN. */
856 static int do_sdio_entry(const char *filename
,
857 void *symval
, char *alias
)
859 DEF_FIELD(symval
, sdio_device_id
, class);
860 DEF_FIELD(symval
, sdio_device_id
, vendor
);
861 DEF_FIELD(symval
, sdio_device_id
, device
);
863 strcpy(alias
, "sdio:");
864 ADD(alias
, "c", class != (__u8
)SDIO_ANY_ID
, class);
865 ADD(alias
, "v", vendor
!= (__u16
)SDIO_ANY_ID
, vendor
);
866 ADD(alias
, "d", device
!= (__u16
)SDIO_ANY_ID
, device
);
870 ADD_TO_DEVTABLE("sdio", sdio_device_id
, do_sdio_entry
);
872 /* Looks like: ssb:vNidNrevN. */
873 static int do_ssb_entry(const char *filename
,
874 void *symval
, char *alias
)
876 DEF_FIELD(symval
, ssb_device_id
, vendor
);
877 DEF_FIELD(symval
, ssb_device_id
, coreid
);
878 DEF_FIELD(symval
, ssb_device_id
, revision
);
880 strcpy(alias
, "ssb:");
881 ADD(alias
, "v", vendor
!= SSB_ANY_VENDOR
, vendor
);
882 ADD(alias
, "id", coreid
!= SSB_ANY_ID
, coreid
);
883 ADD(alias
, "rev", revision
!= SSB_ANY_REV
, revision
);
887 ADD_TO_DEVTABLE("ssb", ssb_device_id
, do_ssb_entry
);
889 /* Looks like: bcma:mNidNrevNclN. */
890 static int do_bcma_entry(const char *filename
,
891 void *symval
, char *alias
)
893 DEF_FIELD(symval
, bcma_device_id
, manuf
);
894 DEF_FIELD(symval
, bcma_device_id
, id
);
895 DEF_FIELD(symval
, bcma_device_id
, rev
);
896 DEF_FIELD(symval
, bcma_device_id
, class);
898 strcpy(alias
, "bcma:");
899 ADD(alias
, "m", manuf
!= BCMA_ANY_MANUF
, manuf
);
900 ADD(alias
, "id", id
!= BCMA_ANY_ID
, id
);
901 ADD(alias
, "rev", rev
!= BCMA_ANY_REV
, rev
);
902 ADD(alias
, "cl", class != BCMA_ANY_CLASS
, class);
906 ADD_TO_DEVTABLE("bcma", bcma_device_id
, do_bcma_entry
);
908 /* Looks like: virtio:dNvN */
909 static int do_virtio_entry(const char *filename
, void *symval
,
912 DEF_FIELD(symval
, virtio_device_id
, device
);
913 DEF_FIELD(symval
, virtio_device_id
, vendor
);
915 strcpy(alias
, "virtio:");
916 ADD(alias
, "d", device
!= VIRTIO_DEV_ANY_ID
, device
);
917 ADD(alias
, "v", vendor
!= VIRTIO_DEV_ANY_ID
, vendor
);
922 ADD_TO_DEVTABLE("virtio", virtio_device_id
, do_virtio_entry
);
925 * Looks like: vmbus:guid
926 * Each byte of the guid will be represented by two hex characters
930 static int do_vmbus_entry(const char *filename
, void *symval
,
934 DEF_FIELD_ADDR(symval
, hv_vmbus_device_id
, guid
);
935 char guid_name
[(sizeof(*guid
) + 1) * 2];
937 for (i
= 0; i
< (sizeof(*guid
) * 2); i
+= 2)
938 sprintf(&guid_name
[i
], "%02x", TO_NATIVE((guid
->b
)[i
/2]));
940 strcpy(alias
, "vmbus:");
941 strcat(alias
, guid_name
);
945 ADD_TO_DEVTABLE("vmbus", hv_vmbus_device_id
, do_vmbus_entry
);
947 /* Looks like: i2c:S */
948 static int do_i2c_entry(const char *filename
, void *symval
,
951 DEF_FIELD_ADDR(symval
, i2c_device_id
, name
);
952 sprintf(alias
, I2C_MODULE_PREFIX
"%s", *name
);
956 ADD_TO_DEVTABLE("i2c", i2c_device_id
, do_i2c_entry
);
958 /* Looks like: spi:S */
959 static int do_spi_entry(const char *filename
, void *symval
,
962 DEF_FIELD_ADDR(symval
, spi_device_id
, name
);
963 sprintf(alias
, SPI_MODULE_PREFIX
"%s", *name
);
967 ADD_TO_DEVTABLE("spi", spi_device_id
, do_spi_entry
);
969 static const struct dmifield
{
973 { "bvn", DMI_BIOS_VENDOR
},
974 { "bvr", DMI_BIOS_VERSION
},
975 { "bd", DMI_BIOS_DATE
},
976 { "svn", DMI_SYS_VENDOR
},
977 { "pn", DMI_PRODUCT_NAME
},
978 { "pvr", DMI_PRODUCT_VERSION
},
979 { "rvn", DMI_BOARD_VENDOR
},
980 { "rn", DMI_BOARD_NAME
},
981 { "rvr", DMI_BOARD_VERSION
},
982 { "cvn", DMI_CHASSIS_VENDOR
},
983 { "ct", DMI_CHASSIS_TYPE
},
984 { "cvr", DMI_CHASSIS_VERSION
},
988 static void dmi_ascii_filter(char *d
, const char *s
)
990 /* Filter out characters we don't want to see in the modalias string */
992 if (*s
> ' ' && *s
< 127 && *s
!= ':')
999 static int do_dmi_entry(const char *filename
, void *symval
,
1003 DEF_FIELD_ADDR(symval
, dmi_system_id
, matches
);
1004 sprintf(alias
, "dmi*");
1006 for (i
= 0; i
< ARRAY_SIZE(dmi_fields
); i
++) {
1007 for (j
= 0; j
< 4; j
++) {
1008 if ((*matches
)[j
].slot
&&
1009 (*matches
)[j
].slot
== dmi_fields
[i
].field
) {
1010 sprintf(alias
+ strlen(alias
), ":%s*",
1011 dmi_fields
[i
].prefix
);
1012 dmi_ascii_filter(alias
+ strlen(alias
),
1013 (*matches
)[j
].substr
);
1022 ADD_TO_DEVTABLE("dmi", dmi_system_id
, do_dmi_entry
);
1024 static int do_platform_entry(const char *filename
,
1025 void *symval
, char *alias
)
1027 DEF_FIELD_ADDR(symval
, platform_device_id
, name
);
1028 sprintf(alias
, PLATFORM_MODULE_PREFIX
"%s", *name
);
1031 ADD_TO_DEVTABLE("platform", platform_device_id
, do_platform_entry
);
1033 static int do_mdio_entry(const char *filename
,
1034 void *symval
, char *alias
)
1037 DEF_FIELD(symval
, mdio_device_id
, phy_id
);
1038 DEF_FIELD(symval
, mdio_device_id
, phy_id_mask
);
1040 alias
+= sprintf(alias
, MDIO_MODULE_PREFIX
);
1042 for (i
= 0; i
< 32; i
++) {
1043 if (!((phy_id_mask
>> (31-i
)) & 1))
1045 else if ((phy_id
>> (31-i
)) & 1)
1051 /* Terminate the string */
1056 ADD_TO_DEVTABLE("mdio", mdio_device_id
, do_mdio_entry
);
1058 /* Looks like: zorro:iN. */
1059 static int do_zorro_entry(const char *filename
, void *symval
,
1062 DEF_FIELD(symval
, zorro_device_id
, id
);
1063 strcpy(alias
, "zorro:");
1064 ADD(alias
, "i", id
!= ZORRO_WILDCARD
, id
);
1067 ADD_TO_DEVTABLE("zorro", zorro_device_id
, do_zorro_entry
);
1069 /* looks like: "pnp:dD" */
1070 static int do_isapnp_entry(const char *filename
,
1071 void *symval
, char *alias
)
1073 DEF_FIELD(symval
, isapnp_device_id
, vendor
);
1074 DEF_FIELD(symval
, isapnp_device_id
, function
);
1075 sprintf(alias
, "pnp:d%c%c%c%x%x%x%x*",
1076 'A' + ((vendor
>> 2) & 0x3f) - 1,
1077 'A' + (((vendor
& 3) << 3) | ((vendor
>> 13) & 7)) - 1,
1078 'A' + ((vendor
>> 8) & 0x1f) - 1,
1079 (function
>> 4) & 0x0f, function
& 0x0f,
1080 (function
>> 12) & 0x0f, (function
>> 8) & 0x0f);
1083 ADD_TO_DEVTABLE("isapnp", isapnp_device_id
, do_isapnp_entry
);
1085 /* Looks like: "ipack:fNvNdN". */
1086 static int do_ipack_entry(const char *filename
,
1087 void *symval
, char *alias
)
1089 DEF_FIELD(symval
, ipack_device_id
, format
);
1090 DEF_FIELD(symval
, ipack_device_id
, vendor
);
1091 DEF_FIELD(symval
, ipack_device_id
, device
);
1092 strcpy(alias
, "ipack:");
1093 ADD(alias
, "f", format
!= IPACK_ANY_FORMAT
, format
);
1094 ADD(alias
, "v", vendor
!= IPACK_ANY_ID
, vendor
);
1095 ADD(alias
, "d", device
!= IPACK_ANY_ID
, device
);
1096 add_wildcard(alias
);
1099 ADD_TO_DEVTABLE("ipack", ipack_device_id
, do_ipack_entry
);
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.
1107 static void append_nibble_mask(char **outp
,
1108 unsigned int nibble
, unsigned int mask
)
1119 p
+= sprintf(p
, "%X", nibble
);
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
1130 for (i
= 0; i
< 0x10; i
++)
1131 if ((i
& mask
) == nibble
)
1132 p
+= sprintf(p
, "%X", i
);
1136 /* Ensure that the string remains NUL-terminated: */
1139 /* Advance the caller's end-of-string pointer: */
1144 * looks like: "amba:dN"
1146 * N is exactly 8 digits, where each is an upper-case hex digit, or
1147 * a ? or [] pattern matching exactly one digit.
1149 static int do_amba_entry(const char *filename
,
1150 void *symval
, char *alias
)
1154 DEF_FIELD(symval
, amba_id
, id
);
1155 DEF_FIELD(symval
, amba_id
, mask
);
1157 if ((id
& mask
) != id
)
1158 fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
1159 "id=0x%08X, mask=0x%08X. Please fix this driver.\n",
1160 filename
, id
, mask
);
1162 p
+= sprintf(alias
, "amba:d");
1163 for (digit
= 0; digit
< 8; digit
++)
1164 append_nibble_mask(&p
,
1165 (id
>> (4 * (7 - digit
))) & 0xf,
1166 (mask
>> (4 * (7 - digit
))) & 0xf);
1170 ADD_TO_DEVTABLE("amba", amba_id
, do_amba_entry
);
1173 * looks like: "mipscdmm:tN"
1175 * N is exactly 2 digits, where each is an upper-case hex digit, or
1176 * a ? or [] pattern matching exactly one digit.
1178 static int do_mips_cdmm_entry(const char *filename
,
1179 void *symval
, char *alias
)
1181 DEF_FIELD(symval
, mips_cdmm_device_id
, type
);
1183 sprintf(alias
, "mipscdmm:t%02X*", type
);
1186 ADD_TO_DEVTABLE("mipscdmm", mips_cdmm_device_id
, do_mips_cdmm_entry
);
1188 /* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
1189 * All fields are numbers. It would be nicer to use strings for vendor
1190 * and feature, but getting those out of the build system here is too
1194 static int do_x86cpu_entry(const char *filename
, void *symval
,
1197 DEF_FIELD(symval
, x86_cpu_id
, feature
);
1198 DEF_FIELD(symval
, x86_cpu_id
, family
);
1199 DEF_FIELD(symval
, x86_cpu_id
, model
);
1200 DEF_FIELD(symval
, x86_cpu_id
, vendor
);
1202 strcpy(alias
, "cpu:type:x86,");
1203 ADD(alias
, "ven", vendor
!= X86_VENDOR_ANY
, vendor
);
1204 ADD(alias
, "fam", family
!= X86_FAMILY_ANY
, family
);
1205 ADD(alias
, "mod", model
!= X86_MODEL_ANY
, model
);
1206 strcat(alias
, ":feature:*");
1207 if (feature
!= X86_FEATURE_ANY
)
1208 sprintf(alias
+ strlen(alias
), "%04X*", feature
);
1211 ADD_TO_DEVTABLE("x86cpu", x86_cpu_id
, do_x86cpu_entry
);
1213 /* LOOKS like cpu:type:*:feature:*FEAT* */
1214 static int do_cpu_entry(const char *filename
, void *symval
, char *alias
)
1216 DEF_FIELD(symval
, cpu_feature
, feature
);
1218 sprintf(alias
, "cpu:type:*:feature:*%04X*", feature
);
1221 ADD_TO_DEVTABLE("cpu", cpu_feature
, do_cpu_entry
);
1223 /* Looks like: mei:S:uuid:N:* */
1224 static int do_mei_entry(const char *filename
, void *symval
,
1227 DEF_FIELD_ADDR(symval
, mei_cl_device_id
, name
);
1228 DEF_FIELD_ADDR(symval
, mei_cl_device_id
, uuid
);
1229 DEF_FIELD(symval
, mei_cl_device_id
, version
);
1231 sprintf(alias
, MEI_CL_MODULE_PREFIX
);
1232 sprintf(alias
+ strlen(alias
), "%s:", (*name
)[0] ? *name
: "*");
1233 add_uuid(alias
, *uuid
);
1234 ADD(alias
, ":", version
!= MEI_CL_VERSION_ANY
, version
);
1236 strcat(alias
, ":*");
1240 ADD_TO_DEVTABLE("mei", mei_cl_device_id
, do_mei_entry
);
1242 /* Looks like: rapidio:vNdNavNadN */
1243 static int do_rio_entry(const char *filename
,
1244 void *symval
, char *alias
)
1246 DEF_FIELD(symval
, rio_device_id
, did
);
1247 DEF_FIELD(symval
, rio_device_id
, vid
);
1248 DEF_FIELD(symval
, rio_device_id
, asm_did
);
1249 DEF_FIELD(symval
, rio_device_id
, asm_vid
);
1251 strcpy(alias
, "rapidio:");
1252 ADD(alias
, "v", vid
!= RIO_ANY_ID
, vid
);
1253 ADD(alias
, "d", did
!= RIO_ANY_ID
, did
);
1254 ADD(alias
, "av", asm_vid
!= RIO_ANY_ID
, asm_vid
);
1255 ADD(alias
, "ad", asm_did
!= RIO_ANY_ID
, asm_did
);
1257 add_wildcard(alias
);
1260 ADD_TO_DEVTABLE("rapidio", rio_device_id
, do_rio_entry
);
1262 /* Looks like: ulpi:vNpN */
1263 static int do_ulpi_entry(const char *filename
, void *symval
,
1266 DEF_FIELD(symval
, ulpi_device_id
, vendor
);
1267 DEF_FIELD(symval
, ulpi_device_id
, product
);
1269 sprintf(alias
, "ulpi:v%04xp%04x", vendor
, product
);
1273 ADD_TO_DEVTABLE("ulpi", ulpi_device_id
, do_ulpi_entry
);
1275 /* Looks like: hdaudio:vNrNaN */
1276 static int do_hda_entry(const char *filename
, void *symval
, char *alias
)
1278 DEF_FIELD(symval
, hda_device_id
, vendor_id
);
1279 DEF_FIELD(symval
, hda_device_id
, rev_id
);
1280 DEF_FIELD(symval
, hda_device_id
, api_version
);
1282 strcpy(alias
, "hdaudio:");
1283 ADD(alias
, "v", vendor_id
!= 0, vendor_id
);
1284 ADD(alias
, "r", rev_id
!= 0, rev_id
);
1285 ADD(alias
, "a", api_version
!= 0, api_version
);
1287 add_wildcard(alias
);
1290 ADD_TO_DEVTABLE("hdaudio", hda_device_id
, do_hda_entry
);
1292 /* Looks like: fsl-mc:vNdN */
1293 static int do_fsl_mc_entry(const char *filename
, void *symval
,
1296 DEF_FIELD(symval
, fsl_mc_device_id
, vendor
);
1297 DEF_FIELD_ADDR(symval
, fsl_mc_device_id
, obj_type
);
1299 sprintf(alias
, "fsl-mc:v%08Xd%s", vendor
, *obj_type
);
1302 ADD_TO_DEVTABLE("fslmc", fsl_mc_device_id
, do_fsl_mc_entry
);
1304 /* Does namelen bytes of name exactly match the symbol? */
1305 static bool sym_is(const char *name
, unsigned namelen
, const char *symbol
)
1307 if (namelen
!= strlen(symbol
))
1310 return memcmp(name
, symbol
, namelen
) == 0;
1313 static void do_table(void *symval
, unsigned long size
,
1314 unsigned long id_size
,
1315 const char *device_id
,
1321 int (*do_entry
)(const char *, void *entry
, char *alias
) = function
;
1323 device_id_check(mod
->name
, device_id
, size
, id_size
, symval
);
1324 /* Leave last one: it's the terminator. */
1327 for (i
= 0; i
< size
; i
+= id_size
) {
1328 if (do_entry(mod
->name
, symval
+i
, alias
)) {
1329 buf_printf(&mod
->dev_table_buf
,
1330 "MODULE_ALIAS(\"%s\");\n", alias
);
1335 /* Create MODULE_ALIAS() statements.
1336 * At this time, we cannot write the actual output C source yet,
1337 * so we write into the mod->dev_table_buf buffer. */
1338 void handle_moddevtable(struct module
*mod
, struct elf_info
*info
,
1339 Elf_Sym
*sym
, const char *symname
)
1343 const char *name
, *identifier
;
1344 unsigned int namelen
;
1346 /* We're looking for a section relative symbol */
1347 if (!sym
->st_shndx
|| get_secindex(info
, sym
) >= info
->num_sections
)
1350 /* We're looking for an object */
1351 if (ELF_ST_TYPE(sym
->st_info
) != STT_OBJECT
)
1354 /* All our symbols are of form <prefix>__mod_<name>__<identifier>_device_table. */
1355 name
= strstr(symname
, "__mod_");
1358 name
+= strlen("__mod_");
1359 namelen
= strlen(name
);
1360 if (namelen
< strlen("_device_table"))
1362 if (strcmp(name
+ namelen
- strlen("_device_table"), "_device_table"))
1364 identifier
= strstr(name
, "__");
1367 namelen
= identifier
- name
;
1369 /* Handle all-NULL symbols allocated into .bss */
1370 if (info
->sechdrs
[get_secindex(info
, sym
)].sh_type
& SHT_NOBITS
) {
1371 zeros
= calloc(1, sym
->st_size
);
1374 symval
= (void *)info
->hdr
1375 + info
->sechdrs
[get_secindex(info
, sym
)].sh_offset
1379 /* First handle the "special" cases */
1380 if (sym_is(name
, namelen
, "usb"))
1381 do_usb_table(symval
, sym
->st_size
, mod
);
1382 if (sym_is(name
, namelen
, "of"))
1383 do_of_table(symval
, sym
->st_size
, mod
);
1384 else if (sym_is(name
, namelen
, "pnp"))
1385 do_pnp_device_entry(symval
, sym
->st_size
, mod
);
1386 else if (sym_is(name
, namelen
, "pnp_card"))
1387 do_pnp_card_entries(symval
, sym
->st_size
, mod
);
1389 struct devtable
**p
;
1390 INIT_SECTION(__devtable
);
1392 for (p
= __start___devtable
; p
< __stop___devtable
; p
++) {
1393 if (sym_is(name
, namelen
, (*p
)->device_id
)) {
1394 do_table(symval
, sym
->st_size
, (*p
)->id_size
,
1395 (*p
)->device_id
, (*p
)->function
, mod
);
1403 /* Now add out buffered information to the generated C source */
1404 void add_moddevtable(struct buffer
*buf
, struct module
*mod
)
1406 buf_printf(buf
, "\n");
1407 buf_write(buf
, mod
->dev_table_buf
.p
, mod
->dev_table_buf
.pos
);
1408 free(mod
->dev_table_buf
.p
);