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.
15 /* We use the ELF typedefs for kernel_ulong_t but bite the bullet and
16 * use either stdint.h or inttypes.h for the rest. */
17 #if KERNEL_ELFCLASS == ELFCLASS32
18 typedef Elf32_Addr kernel_ulong_t
;
19 #define BITS_PER_LONG 32
21 typedef Elf64_Addr kernel_ulong_t
;
22 #define BITS_PER_LONG 64
32 typedef uint32_t __u32
;
33 typedef uint16_t __u16
;
34 typedef unsigned char __u8
;
36 /* Big exception to the "don't include kernel headers into userspace, which
37 * even potentially has different endianness and word sizes, since
38 * we handle those differences explicitly below */
39 #include "../../include/linux/mod_devicetable.h"
41 #define ADD(str, sep, cond, field) \
45 sprintf(str + strlen(str), \
46 sizeof(field) == 1 ? "%02X" : \
47 sizeof(field) == 2 ? "%04X" : \
48 sizeof(field) == 4 ? "%08X" : "", \
51 sprintf(str + strlen(str), "*"); \
54 /* Always end in a wildcard, for future extension */
55 static inline void add_wildcard(char *str
)
57 int len
= strlen(str
);
59 if (str
[len
- 1] != '*')
60 strcat(str
+ len
, "*");
63 unsigned int cross_build
= 0;
65 * Check that sizeof(device_id type) are consistent with size of section
66 * in .o file. If in-consistent then userspace and kernel does not agree
67 * on actual size which is a bug.
68 * Also verify that the final entry in the table is all zeros.
69 * Ignore both checks if build host differ from target host and size differs.
71 static void device_id_check(const char *modname
, const char *device_id
,
72 unsigned long size
, unsigned long id_size
,
77 if (size
% id_size
|| size
< id_size
) {
80 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
81 "of the size of section __mod_%s_device_table=%lu.\n"
82 "Fix definition of struct %s_device_id "
83 "in mod_devicetable.h\n",
84 modname
, device_id
, id_size
, device_id
, size
, device_id
);
86 /* Verify last one is a terminator */
87 for (i
= 0; i
< id_size
; i
++ ) {
88 if (*(uint8_t*)(symval
+size
-id_size
+i
)) {
89 fprintf(stderr
,"%s: struct %s_device_id is %lu bytes. "
90 "The last of %lu is:\n",
91 modname
, device_id
, id_size
, size
/ id_size
);
92 for (i
= 0; i
< id_size
; i
++ )
93 fprintf(stderr
,"0x%02x ",
94 *(uint8_t*)(symval
+size
-id_size
+i
) );
96 fatal("%s: struct %s_device_id is not terminated "
97 "with a NULL entry!\n", modname
, device_id
);
102 /* USB is special because the bcdDevice can be matched against a numeric range */
103 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */
104 static void do_usb_entry(struct usb_device_id
*id
,
105 unsigned int bcdDevice_initial
, int bcdDevice_initial_digits
,
106 unsigned char range_lo
, unsigned char range_hi
,
110 strcpy(alias
, "usb:");
111 ADD(alias
, "v", id
->match_flags
&USB_DEVICE_ID_MATCH_VENDOR
,
113 ADD(alias
, "p", id
->match_flags
&USB_DEVICE_ID_MATCH_PRODUCT
,
117 if (bcdDevice_initial_digits
)
118 sprintf(alias
+ strlen(alias
), "%0*X",
119 bcdDevice_initial_digits
, bcdDevice_initial
);
120 if (range_lo
== range_hi
)
121 sprintf(alias
+ strlen(alias
), "%u", range_lo
);
122 else if (range_lo
> 0 || range_hi
< 9)
123 sprintf(alias
+ strlen(alias
), "[%u-%u]", range_lo
, range_hi
);
124 if (bcdDevice_initial_digits
< (sizeof(id
->bcdDevice_lo
) * 2 - 1))
127 ADD(alias
, "dc", id
->match_flags
&USB_DEVICE_ID_MATCH_DEV_CLASS
,
130 id
->match_flags
&USB_DEVICE_ID_MATCH_DEV_SUBCLASS
,
131 id
->bDeviceSubClass
);
133 id
->match_flags
&USB_DEVICE_ID_MATCH_DEV_PROTOCOL
,
134 id
->bDeviceProtocol
);
136 id
->match_flags
&USB_DEVICE_ID_MATCH_INT_CLASS
,
137 id
->bInterfaceClass
);
139 id
->match_flags
&USB_DEVICE_ID_MATCH_INT_SUBCLASS
,
140 id
->bInterfaceSubClass
);
142 id
->match_flags
&USB_DEVICE_ID_MATCH_INT_PROTOCOL
,
143 id
->bInterfaceProtocol
);
146 buf_printf(&mod
->dev_table_buf
,
147 "MODULE_ALIAS(\"%s\");\n", alias
);
150 static void do_usb_entry_multi(struct usb_device_id
*id
, struct module
*mod
)
152 unsigned int devlo
, devhi
;
153 unsigned char chi
, clo
;
156 id
->match_flags
= TO_NATIVE(id
->match_flags
);
157 id
->idVendor
= TO_NATIVE(id
->idVendor
);
158 id
->idProduct
= TO_NATIVE(id
->idProduct
);
160 devlo
= id
->match_flags
& USB_DEVICE_ID_MATCH_DEV_LO
?
161 TO_NATIVE(id
->bcdDevice_lo
) : 0x0U
;
162 devhi
= id
->match_flags
& USB_DEVICE_ID_MATCH_DEV_HI
?
163 TO_NATIVE(id
->bcdDevice_hi
) : ~0x0U
;
166 * Some modules (visor) have empty slots as placeholder for
167 * run-time specification that results in catch-all alias
169 if (!(id
->idVendor
| id
->idProduct
| id
->bDeviceClass
| id
->bInterfaceClass
))
172 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
173 for (ndigits
= sizeof(id
->bcdDevice_lo
) * 2 - 1; devlo
<= devhi
; ndigits
--) {
176 if (chi
> 9) /* it's bcd not hex */
181 if (devlo
== devhi
|| !ndigits
) {
182 do_usb_entry(id
, devlo
, ndigits
, clo
, chi
, mod
);
187 do_usb_entry(id
, devlo
++, ndigits
, clo
, 9, mod
);
190 do_usb_entry(id
, devhi
--, ndigits
, 0, chi
, mod
);
194 static void do_usb_table(void *symval
, unsigned long size
,
198 const unsigned long id_size
= sizeof(struct usb_device_id
);
200 device_id_check(mod
->name
, "usb", size
, id_size
, symval
);
202 /* Leave last one: it's the terminator. */
205 for (i
= 0; i
< size
; i
+= id_size
)
206 do_usb_entry_multi(symval
+ i
, mod
);
209 /* Looks like: ieee1394:venNmoNspNverN */
210 static int do_ieee1394_entry(const char *filename
,
211 struct ieee1394_device_id
*id
, char *alias
)
213 id
->match_flags
= TO_NATIVE(id
->match_flags
);
214 id
->vendor_id
= TO_NATIVE(id
->vendor_id
);
215 id
->model_id
= TO_NATIVE(id
->model_id
);
216 id
->specifier_id
= TO_NATIVE(id
->specifier_id
);
217 id
->version
= TO_NATIVE(id
->version
);
219 strcpy(alias
, "ieee1394:");
220 ADD(alias
, "ven", id
->match_flags
& IEEE1394_MATCH_VENDOR_ID
,
222 ADD(alias
, "mo", id
->match_flags
& IEEE1394_MATCH_MODEL_ID
,
224 ADD(alias
, "sp", id
->match_flags
& IEEE1394_MATCH_SPECIFIER_ID
,
226 ADD(alias
, "ver", id
->match_flags
& IEEE1394_MATCH_VERSION
,
233 /* Looks like: pci:vNdNsvNsdNbcNscNiN. */
234 static int do_pci_entry(const char *filename
,
235 struct pci_device_id
*id
, char *alias
)
237 /* Class field can be divided into these three. */
238 unsigned char baseclass
, subclass
, interface
,
239 baseclass_mask
, subclass_mask
, interface_mask
;
241 id
->vendor
= TO_NATIVE(id
->vendor
);
242 id
->device
= TO_NATIVE(id
->device
);
243 id
->subvendor
= TO_NATIVE(id
->subvendor
);
244 id
->subdevice
= TO_NATIVE(id
->subdevice
);
245 id
->class = TO_NATIVE(id
->class);
246 id
->class_mask
= TO_NATIVE(id
->class_mask
);
248 strcpy(alias
, "pci:");
249 ADD(alias
, "v", id
->vendor
!= PCI_ANY_ID
, id
->vendor
);
250 ADD(alias
, "d", id
->device
!= PCI_ANY_ID
, id
->device
);
251 ADD(alias
, "sv", id
->subvendor
!= PCI_ANY_ID
, id
->subvendor
);
252 ADD(alias
, "sd", id
->subdevice
!= PCI_ANY_ID
, id
->subdevice
);
254 baseclass
= (id
->class) >> 16;
255 baseclass_mask
= (id
->class_mask
) >> 16;
256 subclass
= (id
->class) >> 8;
257 subclass_mask
= (id
->class_mask
) >> 8;
258 interface
= id
->class;
259 interface_mask
= id
->class_mask
;
261 if ((baseclass_mask
!= 0 && baseclass_mask
!= 0xFF)
262 || (subclass_mask
!= 0 && subclass_mask
!= 0xFF)
263 || (interface_mask
!= 0 && interface_mask
!= 0xFF)) {
264 warn("Can't handle masks in %s:%04X\n",
265 filename
, id
->class_mask
);
269 ADD(alias
, "bc", baseclass_mask
== 0xFF, baseclass
);
270 ADD(alias
, "sc", subclass_mask
== 0xFF, subclass
);
271 ADD(alias
, "i", interface_mask
== 0xFF, interface
);
276 /* looks like: "ccw:tNmNdtNdmN" */
277 static int do_ccw_entry(const char *filename
,
278 struct ccw_device_id
*id
, char *alias
)
280 id
->match_flags
= TO_NATIVE(id
->match_flags
);
281 id
->cu_type
= TO_NATIVE(id
->cu_type
);
282 id
->cu_model
= TO_NATIVE(id
->cu_model
);
283 id
->dev_type
= TO_NATIVE(id
->dev_type
);
284 id
->dev_model
= TO_NATIVE(id
->dev_model
);
286 strcpy(alias
, "ccw:");
287 ADD(alias
, "t", id
->match_flags
&CCW_DEVICE_ID_MATCH_CU_TYPE
,
289 ADD(alias
, "m", id
->match_flags
&CCW_DEVICE_ID_MATCH_CU_MODEL
,
291 ADD(alias
, "dt", id
->match_flags
&CCW_DEVICE_ID_MATCH_DEVICE_TYPE
,
293 ADD(alias
, "dm", id
->match_flags
&CCW_DEVICE_ID_MATCH_DEVICE_MODEL
,
299 /* looks like: "ap:tN" */
300 static int do_ap_entry(const char *filename
,
301 struct ap_device_id
*id
, char *alias
)
303 sprintf(alias
, "ap:t%02X*", id
->dev_type
);
307 /* looks like: "css:tN" */
308 static int do_css_entry(const char *filename
,
309 struct css_device_id
*id
, char *alias
)
311 sprintf(alias
, "css:t%01X", id
->type
);
315 /* Looks like: "serio:tyNprNidNexN" */
316 static int do_serio_entry(const char *filename
,
317 struct serio_device_id
*id
, char *alias
)
319 id
->type
= TO_NATIVE(id
->type
);
320 id
->proto
= TO_NATIVE(id
->proto
);
321 id
->id
= TO_NATIVE(id
->id
);
322 id
->extra
= TO_NATIVE(id
->extra
);
324 strcpy(alias
, "serio:");
325 ADD(alias
, "ty", id
->type
!= SERIO_ANY
, id
->type
);
326 ADD(alias
, "pr", id
->proto
!= SERIO_ANY
, id
->proto
);
327 ADD(alias
, "id", id
->id
!= SERIO_ANY
, id
->id
);
328 ADD(alias
, "ex", id
->extra
!= SERIO_ANY
, id
->extra
);
334 /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
335 static int do_acpi_entry(const char *filename
,
336 struct acpi_device_id
*id
, char *alias
)
338 sprintf(alias
, "acpi*:%s:*", id
->id
);
342 /* looks like: "pnp:dD" */
343 static void do_pnp_device_entry(void *symval
, unsigned long size
,
346 const unsigned long id_size
= sizeof(struct pnp_device_id
);
347 const unsigned int count
= (size
/ id_size
)-1;
348 const struct pnp_device_id
*devs
= symval
;
351 device_id_check(mod
->name
, "pnp", size
, id_size
, symval
);
353 for (i
= 0; i
< count
; i
++) {
354 const char *id
= (char *)devs
[i
].id
;
356 buf_printf(&mod
->dev_table_buf
,
357 "MODULE_ALIAS(\"pnp:d%s*\");\n", id
);
358 buf_printf(&mod
->dev_table_buf
,
359 "MODULE_ALIAS(\"acpi*:%s:*\");\n", id
);
363 /* looks like: "pnp:dD" for every device of the card */
364 static void do_pnp_card_entries(void *symval
, unsigned long size
,
367 const unsigned long id_size
= sizeof(struct pnp_card_device_id
);
368 const unsigned int count
= (size
/ id_size
)-1;
369 const struct pnp_card_device_id
*cards
= symval
;
372 device_id_check(mod
->name
, "pnp", size
, id_size
, symval
);
374 for (i
= 0; i
< count
; i
++) {
376 const struct pnp_card_device_id
*card
= &cards
[i
];
378 for (j
= 0; j
< PNP_MAX_DEVICES
; j
++) {
379 const char *id
= (char *)card
->devs
[j
].id
;
386 /* find duplicate, already added value */
387 for (i2
= 0; i2
< i
&& !dup
; i2
++) {
388 const struct pnp_card_device_id
*card2
= &cards
[i2
];
390 for (j2
= 0; j2
< PNP_MAX_DEVICES
; j2
++) {
391 const char *id2
= (char *)card2
->devs
[j2
].id
;
396 if (!strcmp(id
, id2
)) {
403 /* add an individual alias for every device entry */
405 buf_printf(&mod
->dev_table_buf
,
406 "MODULE_ALIAS(\"pnp:d%s*\");\n", id
);
407 buf_printf(&mod
->dev_table_buf
,
408 "MODULE_ALIAS(\"acpi*:%s:*\");\n", id
);
414 /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
415 static int do_pcmcia_entry(const char *filename
,
416 struct pcmcia_device_id
*id
, char *alias
)
420 id
->match_flags
= TO_NATIVE(id
->match_flags
);
421 id
->manf_id
= TO_NATIVE(id
->manf_id
);
422 id
->card_id
= TO_NATIVE(id
->card_id
);
423 id
->func_id
= TO_NATIVE(id
->func_id
);
424 id
->function
= TO_NATIVE(id
->function
);
425 id
->device_no
= TO_NATIVE(id
->device_no
);
427 for (i
=0; i
<4; i
++) {
428 id
->prod_id_hash
[i
] = TO_NATIVE(id
->prod_id_hash
[i
]);
431 strcpy(alias
, "pcmcia:");
432 ADD(alias
, "m", id
->match_flags
& PCMCIA_DEV_ID_MATCH_MANF_ID
,
434 ADD(alias
, "c", id
->match_flags
& PCMCIA_DEV_ID_MATCH_CARD_ID
,
436 ADD(alias
, "f", id
->match_flags
& PCMCIA_DEV_ID_MATCH_FUNC_ID
,
438 ADD(alias
, "fn", id
->match_flags
& PCMCIA_DEV_ID_MATCH_FUNCTION
,
440 ADD(alias
, "pfn", id
->match_flags
& PCMCIA_DEV_ID_MATCH_DEVICE_NO
,
442 ADD(alias
, "pa", id
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID1
, id
->prod_id_hash
[0]);
443 ADD(alias
, "pb", id
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID2
, id
->prod_id_hash
[1]);
444 ADD(alias
, "pc", id
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID3
, id
->prod_id_hash
[2]);
445 ADD(alias
, "pd", id
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID4
, id
->prod_id_hash
[3]);
453 static int do_of_entry (const char *filename
, struct of_device_id
*of
, char *alias
)
457 len
= sprintf (alias
, "of:N%sT%s",
458 of
->name
[0] ? of
->name
: "*",
459 of
->type
[0] ? of
->type
: "*");
461 if (of
->compatible
[0])
462 sprintf (&alias
[len
], "%sC%s",
463 of
->type
[0] ? "*" : "",
466 /* Replace all whitespace with underscores */
467 for (tmp
= alias
; tmp
&& *tmp
; tmp
++)
475 static int do_vio_entry(const char *filename
, struct vio_device_id
*vio
,
480 sprintf(alias
, "vio:T%sS%s", vio
->type
[0] ? vio
->type
: "*",
481 vio
->compat
[0] ? vio
->compat
: "*");
483 /* Replace all whitespace with underscores */
484 for (tmp
= alias
; tmp
&& *tmp
; tmp
++)
492 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
494 static void do_input(char *alias
,
495 kernel_ulong_t
*arr
, unsigned int min
, unsigned int max
)
499 for (i
= min
; i
< max
; i
++)
500 if (arr
[i
/ BITS_PER_LONG
] & (1L << (i
%BITS_PER_LONG
)))
501 sprintf(alias
+ strlen(alias
), "%X,*", i
);
504 /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
505 static int do_input_entry(const char *filename
, struct input_device_id
*id
,
508 sprintf(alias
, "input:");
510 ADD(alias
, "b", id
->flags
& INPUT_DEVICE_ID_MATCH_BUS
, id
->bustype
);
511 ADD(alias
, "v", id
->flags
& INPUT_DEVICE_ID_MATCH_VENDOR
, id
->vendor
);
512 ADD(alias
, "p", id
->flags
& INPUT_DEVICE_ID_MATCH_PRODUCT
, id
->product
);
513 ADD(alias
, "e", id
->flags
& INPUT_DEVICE_ID_MATCH_VERSION
, id
->version
);
515 sprintf(alias
+ strlen(alias
), "-e*");
516 if (id
->flags
& INPUT_DEVICE_ID_MATCH_EVBIT
)
517 do_input(alias
, id
->evbit
, 0, INPUT_DEVICE_ID_EV_MAX
);
518 sprintf(alias
+ strlen(alias
), "k*");
519 if (id
->flags
& INPUT_DEVICE_ID_MATCH_KEYBIT
)
520 do_input(alias
, id
->keybit
,
521 INPUT_DEVICE_ID_KEY_MIN_INTERESTING
,
522 INPUT_DEVICE_ID_KEY_MAX
);
523 sprintf(alias
+ strlen(alias
), "r*");
524 if (id
->flags
& INPUT_DEVICE_ID_MATCH_RELBIT
)
525 do_input(alias
, id
->relbit
, 0, INPUT_DEVICE_ID_REL_MAX
);
526 sprintf(alias
+ strlen(alias
), "a*");
527 if (id
->flags
& INPUT_DEVICE_ID_MATCH_ABSBIT
)
528 do_input(alias
, id
->absbit
, 0, INPUT_DEVICE_ID_ABS_MAX
);
529 sprintf(alias
+ strlen(alias
), "m*");
530 if (id
->flags
& INPUT_DEVICE_ID_MATCH_MSCIT
)
531 do_input(alias
, id
->mscbit
, 0, INPUT_DEVICE_ID_MSC_MAX
);
532 sprintf(alias
+ strlen(alias
), "l*");
533 if (id
->flags
& INPUT_DEVICE_ID_MATCH_LEDBIT
)
534 do_input(alias
, id
->ledbit
, 0, INPUT_DEVICE_ID_LED_MAX
);
535 sprintf(alias
+ strlen(alias
), "s*");
536 if (id
->flags
& INPUT_DEVICE_ID_MATCH_SNDBIT
)
537 do_input(alias
, id
->sndbit
, 0, INPUT_DEVICE_ID_SND_MAX
);
538 sprintf(alias
+ strlen(alias
), "f*");
539 if (id
->flags
& INPUT_DEVICE_ID_MATCH_FFBIT
)
540 do_input(alias
, id
->ffbit
, 0, INPUT_DEVICE_ID_FF_MAX
);
541 sprintf(alias
+ strlen(alias
), "w*");
542 if (id
->flags
& INPUT_DEVICE_ID_MATCH_SWBIT
)
543 do_input(alias
, id
->swbit
, 0, INPUT_DEVICE_ID_SW_MAX
);
547 static int do_eisa_entry(const char *filename
, struct eisa_device_id
*eisa
,
551 sprintf(alias
, EISA_DEVICE_MODALIAS_FMT
"*", eisa
->sig
);
557 /* Looks like: parisc:tNhvNrevNsvN */
558 static int do_parisc_entry(const char *filename
, struct parisc_device_id
*id
,
561 id
->hw_type
= TO_NATIVE(id
->hw_type
);
562 id
->hversion
= TO_NATIVE(id
->hversion
);
563 id
->hversion_rev
= TO_NATIVE(id
->hversion_rev
);
564 id
->sversion
= TO_NATIVE(id
->sversion
);
566 strcpy(alias
, "parisc:");
567 ADD(alias
, "t", id
->hw_type
!= PA_HWTYPE_ANY_ID
, id
->hw_type
);
568 ADD(alias
, "hv", id
->hversion
!= PA_HVERSION_ANY_ID
, id
->hversion
);
569 ADD(alias
, "rev", id
->hversion_rev
!= PA_HVERSION_REV_ANY_ID
, id
->hversion_rev
);
570 ADD(alias
, "sv", id
->sversion
!= PA_SVERSION_ANY_ID
, id
->sversion
);
576 /* Looks like: sdio:cNvNdN. */
577 static int do_sdio_entry(const char *filename
,
578 struct sdio_device_id
*id
, char *alias
)
580 id
->class = TO_NATIVE(id
->class);
581 id
->vendor
= TO_NATIVE(id
->vendor
);
582 id
->device
= TO_NATIVE(id
->device
);
584 strcpy(alias
, "sdio:");
585 ADD(alias
, "c", id
->class != (__u8
)SDIO_ANY_ID
, id
->class);
586 ADD(alias
, "v", id
->vendor
!= (__u16
)SDIO_ANY_ID
, id
->vendor
);
587 ADD(alias
, "d", id
->device
!= (__u16
)SDIO_ANY_ID
, id
->device
);
592 /* Looks like: ssb:vNidNrevN. */
593 static int do_ssb_entry(const char *filename
,
594 struct ssb_device_id
*id
, char *alias
)
596 id
->vendor
= TO_NATIVE(id
->vendor
);
597 id
->coreid
= TO_NATIVE(id
->coreid
);
598 id
->revision
= TO_NATIVE(id
->revision
);
600 strcpy(alias
, "ssb:");
601 ADD(alias
, "v", id
->vendor
!= SSB_ANY_VENDOR
, id
->vendor
);
602 ADD(alias
, "id", id
->coreid
!= SSB_ANY_ID
, id
->coreid
);
603 ADD(alias
, "rev", id
->revision
!= SSB_ANY_REV
, id
->revision
);
608 /* Looks like: virtio:dNvN */
609 static int do_virtio_entry(const char *filename
, struct virtio_device_id
*id
,
612 id
->device
= TO_NATIVE(id
->device
);
613 id
->vendor
= TO_NATIVE(id
->vendor
);
615 strcpy(alias
, "virtio:");
616 ADD(alias
, "d", 1, id
->device
);
617 ADD(alias
, "v", id
->vendor
!= VIRTIO_DEV_ANY_ID
, id
->vendor
);
623 /* Looks like: i2c:S */
624 static int do_i2c_entry(const char *filename
, struct i2c_device_id
*id
,
627 sprintf(alias
, I2C_MODULE_PREFIX
"%s", id
->name
);
632 static const struct dmifield
{
636 { "bvn", DMI_BIOS_VENDOR
},
637 { "bvr", DMI_BIOS_VERSION
},
638 { "bd", DMI_BIOS_DATE
},
639 { "svn", DMI_SYS_VENDOR
},
640 { "pn", DMI_PRODUCT_NAME
},
641 { "pvr", DMI_PRODUCT_VERSION
},
642 { "rvn", DMI_BOARD_VENDOR
},
643 { "rn", DMI_BOARD_NAME
},
644 { "rvr", DMI_BOARD_VERSION
},
645 { "cvn", DMI_CHASSIS_VENDOR
},
646 { "ct", DMI_CHASSIS_TYPE
},
647 { "cvr", DMI_CHASSIS_VERSION
},
651 static void dmi_ascii_filter(char *d
, const char *s
)
653 /* Filter out characters we don't want to see in the modalias string */
655 if (*s
> ' ' && *s
< 127 && *s
!= ':')
662 static int do_dmi_entry(const char *filename
, struct dmi_system_id
*id
,
667 sprintf(alias
, "dmi*");
669 for (i
= 0; i
< ARRAY_SIZE(dmi_fields
); i
++) {
670 for (j
= 0; j
< 4; j
++) {
671 if (id
->matches
[j
].slot
&&
672 id
->matches
[j
].slot
== dmi_fields
[i
].field
) {
673 sprintf(alias
+ strlen(alias
), ":%s*",
674 dmi_fields
[i
].prefix
);
675 dmi_ascii_filter(alias
+ strlen(alias
),
676 id
->matches
[j
].substr
);
685 /* Ignore any prefix, eg. some architectures prepend _ */
686 static inline int sym_is(const char *symbol
, const char *name
)
690 match
= strstr(symbol
, name
);
693 return match
[strlen(symbol
)] == '\0';
696 static void do_table(void *symval
, unsigned long size
,
697 unsigned long id_size
,
698 const char *device_id
,
704 int (*do_entry
)(const char *, void *entry
, char *alias
) = function
;
706 device_id_check(mod
->name
, device_id
, size
, id_size
, symval
);
707 /* Leave last one: it's the terminator. */
710 for (i
= 0; i
< size
; i
+= id_size
) {
711 if (do_entry(mod
->name
, symval
+i
, alias
)) {
712 buf_printf(&mod
->dev_table_buf
,
713 "MODULE_ALIAS(\"%s\");\n", alias
);
718 /* Create MODULE_ALIAS() statements.
719 * At this time, we cannot write the actual output C source yet,
720 * so we write into the mod->dev_table_buf buffer. */
721 void handle_moddevtable(struct module
*mod
, struct elf_info
*info
,
722 Elf_Sym
*sym
, const char *symname
)
727 /* We're looking for a section relative symbol */
728 if (!sym
->st_shndx
|| sym
->st_shndx
>= info
->hdr
->e_shnum
)
731 /* Handle all-NULL symbols allocated into .bss */
732 if (info
->sechdrs
[sym
->st_shndx
].sh_type
& SHT_NOBITS
) {
733 zeros
= calloc(1, sym
->st_size
);
736 symval
= (void *)info
->hdr
737 + info
->sechdrs
[sym
->st_shndx
].sh_offset
741 if (sym_is(symname
, "__mod_pci_device_table"))
742 do_table(symval
, sym
->st_size
,
743 sizeof(struct pci_device_id
), "pci",
745 else if (sym_is(symname
, "__mod_usb_device_table"))
746 /* special case to handle bcdDevice ranges */
747 do_usb_table(symval
, sym
->st_size
, mod
);
748 else if (sym_is(symname
, "__mod_ieee1394_device_table"))
749 do_table(symval
, sym
->st_size
,
750 sizeof(struct ieee1394_device_id
), "ieee1394",
751 do_ieee1394_entry
, mod
);
752 else if (sym_is(symname
, "__mod_ccw_device_table"))
753 do_table(symval
, sym
->st_size
,
754 sizeof(struct ccw_device_id
), "ccw",
756 else if (sym_is(symname
, "__mod_ap_device_table"))
757 do_table(symval
, sym
->st_size
,
758 sizeof(struct ap_device_id
), "ap",
760 else if (sym_is(symname
, "__mod_css_device_table"))
761 do_table(symval
, sym
->st_size
,
762 sizeof(struct css_device_id
), "css",
764 else if (sym_is(symname
, "__mod_serio_device_table"))
765 do_table(symval
, sym
->st_size
,
766 sizeof(struct serio_device_id
), "serio",
767 do_serio_entry
, mod
);
768 else if (sym_is(symname
, "__mod_acpi_device_table"))
769 do_table(symval
, sym
->st_size
,
770 sizeof(struct acpi_device_id
), "acpi",
772 else if (sym_is(symname
, "__mod_pnp_device_table"))
773 do_pnp_device_entry(symval
, sym
->st_size
, mod
);
774 else if (sym_is(symname
, "__mod_pnp_card_device_table"))
775 do_pnp_card_entries(symval
, sym
->st_size
, mod
);
776 else if (sym_is(symname
, "__mod_pcmcia_device_table"))
777 do_table(symval
, sym
->st_size
,
778 sizeof(struct pcmcia_device_id
), "pcmcia",
779 do_pcmcia_entry
, mod
);
780 else if (sym_is(symname
, "__mod_of_device_table"))
781 do_table(symval
, sym
->st_size
,
782 sizeof(struct of_device_id
), "of",
784 else if (sym_is(symname
, "__mod_vio_device_table"))
785 do_table(symval
, sym
->st_size
,
786 sizeof(struct vio_device_id
), "vio",
788 else if (sym_is(symname
, "__mod_input_device_table"))
789 do_table(symval
, sym
->st_size
,
790 sizeof(struct input_device_id
), "input",
791 do_input_entry
, mod
);
792 else if (sym_is(symname
, "__mod_eisa_device_table"))
793 do_table(symval
, sym
->st_size
,
794 sizeof(struct eisa_device_id
), "eisa",
796 else if (sym_is(symname
, "__mod_parisc_device_table"))
797 do_table(symval
, sym
->st_size
,
798 sizeof(struct parisc_device_id
), "parisc",
799 do_parisc_entry
, mod
);
800 else if (sym_is(symname
, "__mod_sdio_device_table"))
801 do_table(symval
, sym
->st_size
,
802 sizeof(struct sdio_device_id
), "sdio",
804 else if (sym_is(symname
, "__mod_ssb_device_table"))
805 do_table(symval
, sym
->st_size
,
806 sizeof(struct ssb_device_id
), "ssb",
808 else if (sym_is(symname
, "__mod_virtio_device_table"))
809 do_table(symval
, sym
->st_size
,
810 sizeof(struct virtio_device_id
), "virtio",
811 do_virtio_entry
, mod
);
812 else if (sym_is(symname
, "__mod_i2c_device_table"))
813 do_table(symval
, sym
->st_size
,
814 sizeof(struct i2c_device_id
), "i2c",
816 else if (sym_is(symname
, "__mod_dmi_device_table"))
817 do_table(symval
, sym
->st_size
,
818 sizeof(struct dmi_system_id
), "dmi",
823 /* Now add out buffered information to the generated C source */
824 void add_moddevtable(struct buffer
*buf
, struct module
*mod
)
826 buf_printf(buf
, "\n");
827 buf_write(buf
, mod
->dev_table_buf
.p
, mod
->dev_table_buf
.pos
);
828 free(mod
->dev_table_buf
.p
);