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 /* backwards compatibility, don't use in new code */
48 #define UUID_STRING_LEN 36
50 /* Big exception to the "don't include kernel headers into userspace, which
51 * even potentially has different endianness and word sizes, since
52 * we handle those differences explicitly below */
53 #include "../../include/linux/mod_devicetable.h"
55 /* This array collects all instances that use the generic do_table */
57 const char *device_id; /* name of table, __mod_<name>__*_device_table. */
58 unsigned long id_size;
59 int (*do_entry)(const char *filename, void *symval, char *alias);
62 /* Size of alias provided to do_entry functions */
63 #define ALIAS_SIZE 500
65 /* Define a variable f that holds the value of field f of struct devid
68 #define DEF_FIELD(m, devid, f) \
69 typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f))
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*.
75 #define DEF_FIELD_ADDR_VAR(m, devid, f, v) \
76 typeof(((struct devid *)0)->f) *v = ((m) + OFF_##devid##_##f)
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*.
82 #define DEF_FIELD_ADDR(m, devid, f) \
83 DEF_FIELD_ADDR_VAR(m, devid, f, f)
85 #define ADD(str, sep, cond, field) \
89 sprintf(str + strlen(str), \
90 sizeof(field) == 1 ? "%02X" : \
91 sizeof(field) == 2 ? "%04X" : \
92 sizeof(field) == 4 ? "%08X" : "", \
95 sprintf(str + strlen(str), "*"); \
98 /* End in a wildcard, for future extension */
99 static inline void add_wildcard(char *str)
101 int len = strlen(str);
103 if (str[len - 1] != '*')
104 strcat(str + len, "*");
107 static inline void add_uuid(char *str, uuid_le uuid)
109 int len = strlen(str);
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]);
118 static inline void add_guid(char *str, guid_t guid)
120 int len = strlen(str);
122 sprintf(str + len, "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
123 guid.b[3], guid.b[2], guid.b[1], guid.b[0],
124 guid.b[5], guid.b[4], guid.b[7], guid.b[6],
125 guid.b[8], guid.b[9], guid.b[10], guid.b[11],
126 guid.b[12], guid.b[13], guid.b[14], guid.b[15]);
130 * Check that sizeof(device_id type) are consistent with size of section
131 * in .o file. If in-consistent then userspace and kernel does not agree
132 * on actual size which is a bug.
133 * Also verify that the final entry in the table is all zeros.
134 * Ignore both checks if build host differ from target host and size differs.
136 static void device_id_check(const char *modname, const char *device_id,
137 unsigned long size, unsigned long id_size,
142 if (size % id_size || size < id_size) {
143 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
145 "section __mod_%s__<identifier>_device_table=%lu.\n"
146 "Fix definition of struct %s_device_id "
147 "in mod_devicetable.h\n",
148 modname, device_id, id_size, device_id, size, device_id);
150 /* Verify last one is a terminator */
151 for (i = 0; i < id_size; i++ ) {
152 if (*(uint8_t*)(symval+size-id_size+i)) {
153 fprintf(stderr,"%s: struct %s_device_id is %lu bytes. "
154 "The last of %lu is:\n",
155 modname, device_id, id_size, size / id_size);
156 for (i = 0; i < id_size; i++ )
157 fprintf(stderr,"0x%02x ",
158 *(uint8_t*)(symval+size-id_size+i) );
159 fprintf(stderr,"\n");
160 fatal("%s: struct %s_device_id is not terminated "
161 "with a NULL entry!\n", modname, device_id);
166 /* USB is special because the bcdDevice can be matched against a numeric range */
167 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
168 static void do_usb_entry(void *symval,
169 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
170 unsigned char range_lo, unsigned char range_hi,
171 unsigned char max, struct module *mod)
174 DEF_FIELD(symval, usb_device_id, match_flags);
175 DEF_FIELD(symval, usb_device_id, idVendor);
176 DEF_FIELD(symval, usb_device_id, idProduct);
177 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
178 DEF_FIELD(symval, usb_device_id, bDeviceClass);
179 DEF_FIELD(symval, usb_device_id, bDeviceSubClass);
180 DEF_FIELD(symval, usb_device_id, bDeviceProtocol);
181 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
182 DEF_FIELD(symval, usb_device_id, bInterfaceSubClass);
183 DEF_FIELD(symval, usb_device_id, bInterfaceProtocol);
184 DEF_FIELD(symval, usb_device_id, bInterfaceNumber);
186 strcpy(alias, "usb:");
187 ADD(alias, "v", match_flags&USB_DEVICE_ID_MATCH_VENDOR,
189 ADD(alias, "p", match_flags&USB_DEVICE_ID_MATCH_PRODUCT,
193 if (bcdDevice_initial_digits)
194 sprintf(alias + strlen(alias), "%0*X",
195 bcdDevice_initial_digits, bcdDevice_initial);
196 if (range_lo == range_hi)
197 sprintf(alias + strlen(alias), "%X", range_lo);
198 else if (range_lo > 0 || range_hi < max) {
199 if (range_lo > 0x9 || range_hi < 0xA)
200 sprintf(alias + strlen(alias),
205 sprintf(alias + strlen(alias),
206 range_lo < 0x9 ? "[%X-9" : "[%X",
208 sprintf(alias + strlen(alias),
209 range_hi > 0xA ? "A-%X]" : "%X]",
213 if (bcdDevice_initial_digits < (sizeof(bcdDevice_lo) * 2 - 1))
216 ADD(alias, "dc", match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS,
218 ADD(alias, "dsc", match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
220 ADD(alias, "dp", match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL,
222 ADD(alias, "ic", match_flags&USB_DEVICE_ID_MATCH_INT_CLASS,
224 ADD(alias, "isc", match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS,
226 ADD(alias, "ip", match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL,
228 ADD(alias, "in", match_flags&USB_DEVICE_ID_MATCH_INT_NUMBER,
232 buf_printf(&mod->dev_table_buf,
233 "MODULE_ALIAS(\"%s\");\n", alias);
236 /* Handles increment/decrement of BCD formatted integers */
237 /* Returns the previous value, so it works like i++ or i-- */
238 static unsigned int incbcd(unsigned int *bcd,
243 unsigned int init = *bcd, i, j;
244 unsigned long long c, dec = 0;
246 /* If bcd is not in BCD format, just increment */
252 /* Convert BCD to Decimal */
253 for (i=0 ; i < chars ; i++) {
254 c = (*bcd >> (i << 2)) & 0xf;
255 c = c > 9 ? 9 : c; /* force to bcd just in case */
256 for (j=0 ; j < i ; j++)
261 /* Do our increment/decrement */
265 /* Convert back to BCD */
266 for (i=0 ; i < chars ; i++) {
267 for (c=1,j=0 ; j < i ; j++)
270 *bcd += c << (i << 2);
275 static void do_usb_entry_multi(void *symval, struct module *mod)
277 unsigned int devlo, devhi;
278 unsigned char chi, clo, max;
281 DEF_FIELD(symval, usb_device_id, match_flags);
282 DEF_FIELD(symval, usb_device_id, idVendor);
283 DEF_FIELD(symval, usb_device_id, idProduct);
284 DEF_FIELD(symval, usb_device_id, bcdDevice_lo);
285 DEF_FIELD(symval, usb_device_id, bcdDevice_hi);
286 DEF_FIELD(symval, usb_device_id, bDeviceClass);
287 DEF_FIELD(symval, usb_device_id, bInterfaceClass);
289 devlo = match_flags & USB_DEVICE_ID_MATCH_DEV_LO ?
291 devhi = match_flags & USB_DEVICE_ID_MATCH_DEV_HI ?
292 bcdDevice_hi : ~0x0U;
294 /* Figure out if this entry is in bcd or hex format */
295 max = 0x9; /* Default to decimal format */
296 for (ndigits = 0 ; ndigits < sizeof(bcdDevice_lo) * 2 ; ndigits++) {
297 clo = (devlo >> (ndigits << 2)) & 0xf;
298 chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf;
299 if (clo > max || chi > max) {
306 * Some modules (visor) have empty slots as placeholder for
307 * run-time specification that results in catch-all alias
309 if (!(idVendor | idProduct | bDeviceClass | bInterfaceClass))
312 /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */
313 for (ndigits = sizeof(bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) {
316 if (chi > max) /* If we are in bcd mode, truncate if necessary */
321 if (devlo == devhi || !ndigits) {
322 do_usb_entry(symval, devlo, ndigits, clo, chi, max, mod);
328 incbcd(&devlo, 1, max,
329 sizeof(bcdDevice_lo) * 2),
330 ndigits, clo, max, max, mod);
334 incbcd(&devhi, -1, max,
335 sizeof(bcdDevice_lo) * 2),
336 ndigits, 0x0, chi, max, mod);
340 static void do_usb_table(void *symval, unsigned long size,
344 const unsigned long id_size = SIZE_usb_device_id;
346 device_id_check(mod->name, "usb", size, id_size, symval);
348 /* Leave last one: it's the terminator. */
351 for (i = 0; i < size; i += id_size)
352 do_usb_entry_multi(symval + i, mod);
355 static void do_of_entry_multi(void *symval, struct module *mod)
361 DEF_FIELD_ADDR(symval, of_device_id, name);
362 DEF_FIELD_ADDR(symval, of_device_id, type);
363 DEF_FIELD_ADDR(symval, of_device_id, compatible);
365 len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*",
366 (*type)[0] ? *type : "*");
368 if ((*compatible)[0])
369 sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "",
372 /* Replace all whitespace with underscores */
373 for (tmp = alias; tmp && *tmp; tmp++)
377 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
380 buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
383 static void do_of_table(void *symval, unsigned long size,
387 const unsigned long id_size = SIZE_of_device_id;
389 device_id_check(mod->name, "of", size, id_size, symval);
391 /* Leave last one: it's the terminator. */
394 for (i = 0; i < size; i += id_size)
395 do_of_entry_multi(symval + i, mod);
398 /* Looks like: hid:bNvNpN */
399 static int do_hid_entry(const char *filename,
400 void *symval, char *alias)
402 DEF_FIELD(symval, hid_device_id, bus);
403 DEF_FIELD(symval, hid_device_id, group);
404 DEF_FIELD(symval, hid_device_id, vendor);
405 DEF_FIELD(symval, hid_device_id, product);
407 sprintf(alias, "hid:");
408 ADD(alias, "b", bus != HID_BUS_ANY, bus);
409 ADD(alias, "g", group != HID_GROUP_ANY, group);
410 ADD(alias, "v", vendor != HID_ANY_ID, vendor);
411 ADD(alias, "p", product != HID_ANY_ID, product);
416 /* Looks like: ieee1394:venNmoNspNverN */
417 static int do_ieee1394_entry(const char *filename,
418 void *symval, char *alias)
420 DEF_FIELD(symval, ieee1394_device_id, match_flags);
421 DEF_FIELD(symval, ieee1394_device_id, vendor_id);
422 DEF_FIELD(symval, ieee1394_device_id, model_id);
423 DEF_FIELD(symval, ieee1394_device_id, specifier_id);
424 DEF_FIELD(symval, ieee1394_device_id, version);
426 strcpy(alias, "ieee1394:");
427 ADD(alias, "ven", match_flags & IEEE1394_MATCH_VENDOR_ID,
429 ADD(alias, "mo", match_flags & IEEE1394_MATCH_MODEL_ID,
431 ADD(alias, "sp", match_flags & IEEE1394_MATCH_SPECIFIER_ID,
433 ADD(alias, "ver", match_flags & IEEE1394_MATCH_VERSION,
440 /* Looks like: pci:vNdNsvNsdNbcNscNiN or <prefix>_pci:vNdNsvNsdNbcNscNiN. */
441 static int do_pci_entry(const char *filename,
442 void *symval, char *alias)
444 /* Class field can be divided into these three. */
445 unsigned char baseclass, subclass, interface,
446 baseclass_mask, subclass_mask, interface_mask;
448 DEF_FIELD(symval, pci_device_id, vendor);
449 DEF_FIELD(symval, pci_device_id, device);
450 DEF_FIELD(symval, pci_device_id, subvendor);
451 DEF_FIELD(symval, pci_device_id, subdevice);
452 DEF_FIELD(symval, pci_device_id, class);
453 DEF_FIELD(symval, pci_device_id, class_mask);
454 DEF_FIELD(symval, pci_device_id, override_only);
456 switch (override_only) {
458 strcpy(alias, "pci:");
460 case PCI_ID_F_VFIO_DRIVER_OVERRIDE:
461 strcpy(alias, "vfio_pci:");
464 warn("Unknown PCI driver_override alias %08X\n",
469 ADD(alias, "v", vendor != PCI_ANY_ID, vendor);
470 ADD(alias, "d", device != PCI_ANY_ID, device);
471 ADD(alias, "sv", subvendor != PCI_ANY_ID, subvendor);
472 ADD(alias, "sd", subdevice != PCI_ANY_ID, subdevice);
474 baseclass = (class) >> 16;
475 baseclass_mask = (class_mask) >> 16;
476 subclass = (class) >> 8;
477 subclass_mask = (class_mask) >> 8;
479 interface_mask = class_mask;
481 if ((baseclass_mask != 0 && baseclass_mask != 0xFF)
482 || (subclass_mask != 0 && subclass_mask != 0xFF)
483 || (interface_mask != 0 && interface_mask != 0xFF)) {
484 warn("Can't handle masks in %s:%04X\n",
485 filename, class_mask);
489 ADD(alias, "bc", baseclass_mask == 0xFF, baseclass);
490 ADD(alias, "sc", subclass_mask == 0xFF, subclass);
491 ADD(alias, "i", interface_mask == 0xFF, interface);
496 /* looks like: "ccw:tNmNdtNdmN" */
497 static int do_ccw_entry(const char *filename,
498 void *symval, char *alias)
500 DEF_FIELD(symval, ccw_device_id, match_flags);
501 DEF_FIELD(symval, ccw_device_id, cu_type);
502 DEF_FIELD(symval, ccw_device_id, cu_model);
503 DEF_FIELD(symval, ccw_device_id, dev_type);
504 DEF_FIELD(symval, ccw_device_id, dev_model);
506 strcpy(alias, "ccw:");
507 ADD(alias, "t", match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE,
509 ADD(alias, "m", match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL,
511 ADD(alias, "dt", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE,
513 ADD(alias, "dm", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL,
519 /* looks like: "ap:tN" */
520 static int do_ap_entry(const char *filename,
521 void *symval, char *alias)
523 DEF_FIELD(symval, ap_device_id, dev_type);
525 sprintf(alias, "ap:t%02X*", dev_type);
529 /* looks like: "css:tN" */
530 static int do_css_entry(const char *filename,
531 void *symval, char *alias)
533 DEF_FIELD(symval, css_device_id, type);
535 sprintf(alias, "css:t%01X", type);
539 /* Looks like: "serio:tyNprNidNexN" */
540 static int do_serio_entry(const char *filename,
541 void *symval, char *alias)
543 DEF_FIELD(symval, serio_device_id, type);
544 DEF_FIELD(symval, serio_device_id, proto);
545 DEF_FIELD(symval, serio_device_id, id);
546 DEF_FIELD(symval, serio_device_id, extra);
548 strcpy(alias, "serio:");
549 ADD(alias, "ty", type != SERIO_ANY, type);
550 ADD(alias, "pr", proto != SERIO_ANY, proto);
551 ADD(alias, "id", id != SERIO_ANY, id);
552 ADD(alias, "ex", extra != SERIO_ANY, extra);
558 /* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
559 * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
561 * NOTE: Each driver should use one of the following : _HID, _CIDs
562 * or _CLS. Also, bb, ss, and pp can be substituted with ??
563 * as don't care byte.
565 static int do_acpi_entry(const char *filename,
566 void *symval, char *alias)
568 DEF_FIELD_ADDR(symval, acpi_device_id, id);
569 DEF_FIELD_ADDR(symval, acpi_device_id, cls);
570 DEF_FIELD_ADDR(symval, acpi_device_id, cls_msk);
572 if (id && strlen((const char *)*id))
573 sprintf(alias, "acpi*:%s:*", *id);
575 int i, byte_shift, cnt = 0;
578 sprintf(&alias[cnt], "acpi*:");
580 for (i = 1; i <= 3; i++) {
581 byte_shift = 8 * (3-i);
582 msk = (*cls_msk >> byte_shift) & 0xFF;
584 sprintf(&alias[cnt], "%02x",
585 (*cls >> byte_shift) & 0xFF);
587 sprintf(&alias[cnt], "??");
590 sprintf(&alias[cnt], ":*");
595 /* looks like: "pnp:dD" */
596 static void do_pnp_device_entry(void *symval, unsigned long size,
599 const unsigned long id_size = SIZE_pnp_device_id;
600 const unsigned int count = (size / id_size)-1;
603 device_id_check(mod->name, "pnp", size, id_size, symval);
605 for (i = 0; i < count; i++) {
606 DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
607 char acpi_id[sizeof(*id)];
610 buf_printf(&mod->dev_table_buf,
611 "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
613 /* fix broken pnp bus lowercasing */
614 for (j = 0; j < sizeof(acpi_id); j++)
615 acpi_id[j] = toupper((*id)[j]);
616 buf_printf(&mod->dev_table_buf,
617 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
621 /* looks like: "pnp:dD" for every device of the card */
622 static void do_pnp_card_entries(void *symval, unsigned long size,
625 const unsigned long id_size = SIZE_pnp_card_device_id;
626 const unsigned int count = (size / id_size)-1;
629 device_id_check(mod->name, "pnp", size, id_size, symval);
631 for (i = 0; i < count; i++) {
633 DEF_FIELD_ADDR(symval + i * id_size, pnp_card_device_id, devs);
635 for (j = 0; j < PNP_MAX_DEVICES; j++) {
636 const char *id = (char *)(*devs)[j].id;
643 /* find duplicate, already added value */
644 for (i2 = 0; i2 < i && !dup; i2++) {
645 DEF_FIELD_ADDR_VAR(symval + i2 * id_size,
649 for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
651 (char *)(*devs_dup)[j2].id;
656 if (!strcmp(id, id2)) {
663 /* add an individual alias for every device entry */
665 char acpi_id[PNP_ID_LEN];
668 buf_printf(&mod->dev_table_buf,
669 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
671 /* fix broken pnp bus lowercasing */
672 for (k = 0; k < sizeof(acpi_id); k++)
673 acpi_id[k] = toupper(id[k]);
674 buf_printf(&mod->dev_table_buf,
675 "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
681 /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */
682 static int do_pcmcia_entry(const char *filename,
683 void *symval, char *alias)
686 DEF_FIELD(symval, pcmcia_device_id, match_flags);
687 DEF_FIELD(symval, pcmcia_device_id, manf_id);
688 DEF_FIELD(symval, pcmcia_device_id, card_id);
689 DEF_FIELD(symval, pcmcia_device_id, func_id);
690 DEF_FIELD(symval, pcmcia_device_id, function);
691 DEF_FIELD(symval, pcmcia_device_id, device_no);
692 DEF_FIELD_ADDR(symval, pcmcia_device_id, prod_id_hash);
694 for (i=0; i<4; i++) {
695 (*prod_id_hash)[i] = TO_NATIVE((*prod_id_hash)[i]);
698 strcpy(alias, "pcmcia:");
699 ADD(alias, "m", match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID,
701 ADD(alias, "c", match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID,
703 ADD(alias, "f", match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID,
705 ADD(alias, "fn", match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION,
707 ADD(alias, "pfn", match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO,
709 ADD(alias, "pa", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, (*prod_id_hash)[0]);
710 ADD(alias, "pb", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, (*prod_id_hash)[1]);
711 ADD(alias, "pc", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, (*prod_id_hash)[2]);
712 ADD(alias, "pd", match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, (*prod_id_hash)[3]);
718 static int do_vio_entry(const char *filename, void *symval,
722 DEF_FIELD_ADDR(symval, vio_device_id, type);
723 DEF_FIELD_ADDR(symval, vio_device_id, compat);
725 sprintf(alias, "vio:T%sS%s", (*type)[0] ? *type : "*",
726 (*compat)[0] ? *compat : "*");
728 /* Replace all whitespace with underscores */
729 for (tmp = alias; tmp && *tmp; tmp++)
737 static void do_input(char *alias,
738 kernel_ulong_t *arr, unsigned int min, unsigned int max)
742 for (i = min / BITS_PER_LONG; i < max / BITS_PER_LONG + 1; i++)
743 arr[i] = TO_NATIVE(arr[i]);
744 for (i = min; i < max; i++)
745 if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG)))
746 sprintf(alias + strlen(alias), "%X,*", i);
749 /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
750 static int do_input_entry(const char *filename, void *symval,
753 DEF_FIELD(symval, input_device_id, flags);
754 DEF_FIELD(symval, input_device_id, bustype);
755 DEF_FIELD(symval, input_device_id, vendor);
756 DEF_FIELD(symval, input_device_id, product);
757 DEF_FIELD(symval, input_device_id, version);
758 DEF_FIELD_ADDR(symval, input_device_id, evbit);
759 DEF_FIELD_ADDR(symval, input_device_id, keybit);
760 DEF_FIELD_ADDR(symval, input_device_id, relbit);
761 DEF_FIELD_ADDR(symval, input_device_id, absbit);
762 DEF_FIELD_ADDR(symval, input_device_id, mscbit);
763 DEF_FIELD_ADDR(symval, input_device_id, ledbit);
764 DEF_FIELD_ADDR(symval, input_device_id, sndbit);
765 DEF_FIELD_ADDR(symval, input_device_id, ffbit);
766 DEF_FIELD_ADDR(symval, input_device_id, swbit);
768 sprintf(alias, "input:");
770 ADD(alias, "b", flags & INPUT_DEVICE_ID_MATCH_BUS, bustype);
771 ADD(alias, "v", flags & INPUT_DEVICE_ID_MATCH_VENDOR, vendor);
772 ADD(alias, "p", flags & INPUT_DEVICE_ID_MATCH_PRODUCT, product);
773 ADD(alias, "e", flags & INPUT_DEVICE_ID_MATCH_VERSION, version);
775 sprintf(alias + strlen(alias), "-e*");
776 if (flags & INPUT_DEVICE_ID_MATCH_EVBIT)
777 do_input(alias, *evbit, 0, INPUT_DEVICE_ID_EV_MAX);
778 sprintf(alias + strlen(alias), "k*");
779 if (flags & INPUT_DEVICE_ID_MATCH_KEYBIT)
780 do_input(alias, *keybit,
781 INPUT_DEVICE_ID_KEY_MIN_INTERESTING,
782 INPUT_DEVICE_ID_KEY_MAX);
783 sprintf(alias + strlen(alias), "r*");
784 if (flags & INPUT_DEVICE_ID_MATCH_RELBIT)
785 do_input(alias, *relbit, 0, INPUT_DEVICE_ID_REL_MAX);
786 sprintf(alias + strlen(alias), "a*");
787 if (flags & INPUT_DEVICE_ID_MATCH_ABSBIT)
788 do_input(alias, *absbit, 0, INPUT_DEVICE_ID_ABS_MAX);
789 sprintf(alias + strlen(alias), "m*");
790 if (flags & INPUT_DEVICE_ID_MATCH_MSCIT)
791 do_input(alias, *mscbit, 0, INPUT_DEVICE_ID_MSC_MAX);
792 sprintf(alias + strlen(alias), "l*");
793 if (flags & INPUT_DEVICE_ID_MATCH_LEDBIT)
794 do_input(alias, *ledbit, 0, INPUT_DEVICE_ID_LED_MAX);
795 sprintf(alias + strlen(alias), "s*");
796 if (flags & INPUT_DEVICE_ID_MATCH_SNDBIT)
797 do_input(alias, *sndbit, 0, INPUT_DEVICE_ID_SND_MAX);
798 sprintf(alias + strlen(alias), "f*");
799 if (flags & INPUT_DEVICE_ID_MATCH_FFBIT)
800 do_input(alias, *ffbit, 0, INPUT_DEVICE_ID_FF_MAX);
801 sprintf(alias + strlen(alias), "w*");
802 if (flags & INPUT_DEVICE_ID_MATCH_SWBIT)
803 do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
807 static int do_eisa_entry(const char *filename, void *symval,
810 DEF_FIELD_ADDR(symval, eisa_device_id, sig);
812 sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", *sig);
818 /* Looks like: parisc:tNhvNrevNsvN */
819 static int do_parisc_entry(const char *filename, void *symval,
822 DEF_FIELD(symval, parisc_device_id, hw_type);
823 DEF_FIELD(symval, parisc_device_id, hversion);
824 DEF_FIELD(symval, parisc_device_id, hversion_rev);
825 DEF_FIELD(symval, parisc_device_id, sversion);
827 strcpy(alias, "parisc:");
828 ADD(alias, "t", hw_type != PA_HWTYPE_ANY_ID, hw_type);
829 ADD(alias, "hv", hversion != PA_HVERSION_ANY_ID, hversion);
830 ADD(alias, "rev", hversion_rev != PA_HVERSION_REV_ANY_ID, hversion_rev);
831 ADD(alias, "sv", sversion != PA_SVERSION_ANY_ID, sversion);
837 /* Looks like: sdio:cNvNdN. */
838 static int do_sdio_entry(const char *filename,
839 void *symval, char *alias)
841 DEF_FIELD(symval, sdio_device_id, class);
842 DEF_FIELD(symval, sdio_device_id, vendor);
843 DEF_FIELD(symval, sdio_device_id, device);
845 strcpy(alias, "sdio:");
846 ADD(alias, "c", class != (__u8)SDIO_ANY_ID, class);
847 ADD(alias, "v", vendor != (__u16)SDIO_ANY_ID, vendor);
848 ADD(alias, "d", device != (__u16)SDIO_ANY_ID, device);
853 /* Looks like: ssb:vNidNrevN. */
854 static int do_ssb_entry(const char *filename,
855 void *symval, char *alias)
857 DEF_FIELD(symval, ssb_device_id, vendor);
858 DEF_FIELD(symval, ssb_device_id, coreid);
859 DEF_FIELD(symval, ssb_device_id, revision);
861 strcpy(alias, "ssb:");
862 ADD(alias, "v", vendor != SSB_ANY_VENDOR, vendor);
863 ADD(alias, "id", coreid != SSB_ANY_ID, coreid);
864 ADD(alias, "rev", revision != SSB_ANY_REV, revision);
869 /* Looks like: bcma:mNidNrevNclN. */
870 static int do_bcma_entry(const char *filename,
871 void *symval, char *alias)
873 DEF_FIELD(symval, bcma_device_id, manuf);
874 DEF_FIELD(symval, bcma_device_id, id);
875 DEF_FIELD(symval, bcma_device_id, rev);
876 DEF_FIELD(symval, bcma_device_id, class);
878 strcpy(alias, "bcma:");
879 ADD(alias, "m", manuf != BCMA_ANY_MANUF, manuf);
880 ADD(alias, "id", id != BCMA_ANY_ID, id);
881 ADD(alias, "rev", rev != BCMA_ANY_REV, rev);
882 ADD(alias, "cl", class != BCMA_ANY_CLASS, class);
887 /* Looks like: virtio:dNvN */
888 static int do_virtio_entry(const char *filename, void *symval,
891 DEF_FIELD(symval, virtio_device_id, device);
892 DEF_FIELD(symval, virtio_device_id, vendor);
894 strcpy(alias, "virtio:");
895 ADD(alias, "d", device != VIRTIO_DEV_ANY_ID, device);
896 ADD(alias, "v", vendor != VIRTIO_DEV_ANY_ID, vendor);
903 * Looks like: vmbus:guid
904 * Each byte of the guid will be represented by two hex characters
908 static int do_vmbus_entry(const char *filename, void *symval,
912 DEF_FIELD_ADDR(symval, hv_vmbus_device_id, guid);
913 char guid_name[(sizeof(*guid) + 1) * 2];
915 for (i = 0; i < (sizeof(*guid) * 2); i += 2)
916 sprintf(&guid_name[i], "%02x", TO_NATIVE((guid->b)[i/2]));
918 strcpy(alias, "vmbus:");
919 strcat(alias, guid_name);
924 /* Looks like: rpmsg:S */
925 static int do_rpmsg_entry(const char *filename, void *symval,
928 DEF_FIELD_ADDR(symval, rpmsg_device_id, name);
929 sprintf(alias, RPMSG_DEVICE_MODALIAS_FMT, *name);
934 /* Looks like: i2c:S */
935 static int do_i2c_entry(const char *filename, void *symval,
938 DEF_FIELD_ADDR(symval, i2c_device_id, name);
939 sprintf(alias, I2C_MODULE_PREFIX "%s", *name);
944 static int do_i3c_entry(const char *filename, void *symval,
947 DEF_FIELD(symval, i3c_device_id, match_flags);
948 DEF_FIELD(symval, i3c_device_id, dcr);
949 DEF_FIELD(symval, i3c_device_id, manuf_id);
950 DEF_FIELD(symval, i3c_device_id, part_id);
951 DEF_FIELD(symval, i3c_device_id, extra_info);
953 strcpy(alias, "i3c:");
954 ADD(alias, "dcr", match_flags & I3C_MATCH_DCR, dcr);
955 ADD(alias, "manuf", match_flags & I3C_MATCH_MANUF, manuf_id);
956 ADD(alias, "part", match_flags & I3C_MATCH_PART, part_id);
957 ADD(alias, "ext", match_flags & I3C_MATCH_EXTRA_INFO, extra_info);
962 /* Looks like: spi:S */
963 static int do_spi_entry(const char *filename, void *symval,
966 DEF_FIELD_ADDR(symval, spi_device_id, name);
967 sprintf(alias, SPI_MODULE_PREFIX "%s", *name);
972 static const struct dmifield {
976 { "bvn", DMI_BIOS_VENDOR },
977 { "bvr", DMI_BIOS_VERSION },
978 { "bd", DMI_BIOS_DATE },
979 { "br", DMI_BIOS_RELEASE },
980 { "efr", DMI_EC_FIRMWARE_RELEASE },
981 { "svn", DMI_SYS_VENDOR },
982 { "pn", DMI_PRODUCT_NAME },
983 { "pvr", DMI_PRODUCT_VERSION },
984 { "rvn", DMI_BOARD_VENDOR },
985 { "rn", DMI_BOARD_NAME },
986 { "rvr", DMI_BOARD_VERSION },
987 { "cvn", DMI_CHASSIS_VENDOR },
988 { "ct", DMI_CHASSIS_TYPE },
989 { "cvr", DMI_CHASSIS_VERSION },
993 static void dmi_ascii_filter(char *d, const char *s)
995 /* Filter out characters we don't want to see in the modalias string */
997 if (*s > ' ' && *s < 127 && *s != ':')
1004 static int do_dmi_entry(const char *filename, void *symval,
1008 DEF_FIELD_ADDR(symval, dmi_system_id, matches);
1009 sprintf(alias, "dmi*");
1011 for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
1012 for (j = 0; j < 4; j++) {
1013 if ((*matches)[j].slot &&
1014 (*matches)[j].slot == dmi_fields[i].field) {
1015 sprintf(alias + strlen(alias), ":%s*",
1016 dmi_fields[i].prefix);
1017 dmi_ascii_filter(alias + strlen(alias),
1018 (*matches)[j].substr);
1028 static int do_platform_entry(const char *filename,
1029 void *symval, char *alias)
1031 DEF_FIELD_ADDR(symval, platform_device_id, name);
1032 sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
1036 static int do_mdio_entry(const char *filename,
1037 void *symval, char *alias)
1040 DEF_FIELD(symval, mdio_device_id, phy_id);
1041 DEF_FIELD(symval, mdio_device_id, phy_id_mask);
1043 alias += sprintf(alias, MDIO_MODULE_PREFIX);
1045 for (i = 0; i < 32; i++) {
1046 if (!((phy_id_mask >> (31-i)) & 1))
1048 else if ((phy_id >> (31-i)) & 1)
1054 /* Terminate the string */
1060 /* Looks like: zorro:iN. */
1061 static int do_zorro_entry(const char *filename, void *symval,
1064 DEF_FIELD(symval, zorro_device_id, id);
1065 strcpy(alias, "zorro:");
1066 ADD(alias, "i", id != ZORRO_WILDCARD, id);
1070 /* looks like: "pnp:dD" */
1071 static int do_isapnp_entry(const char *filename,
1072 void *symval, char *alias)
1074 DEF_FIELD(symval, isapnp_device_id, vendor);
1075 DEF_FIELD(symval, isapnp_device_id, function);
1076 sprintf(alias, "pnp:d%c%c%c%x%x%x%x*",
1077 'A' + ((vendor >> 2) & 0x3f) - 1,
1078 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
1079 'A' + ((vendor >> 8) & 0x1f) - 1,
1080 (function >> 4) & 0x0f, function & 0x0f,
1081 (function >> 12) & 0x0f, (function >> 8) & 0x0f);
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);
1101 * Append a match expression for a single masked hex digit.
1102 * outp points to a pointer to the character at which to append.
1103 * *outp is updated on return to point just after the appended text,
1104 * to facilitate further appending.
1106 static void append_nibble_mask(char **outp,
1107 unsigned int nibble, unsigned int mask)
1118 p += sprintf(p, "%X", nibble);
1123 * Dumbly emit a match pattern for all possible matching
1124 * digits. This could be improved in some cases using ranges,
1125 * but it has the advantage of being trivially correct, and is
1129 for (i = 0; i < 0x10; i++)
1130 if ((i & mask) == nibble)
1131 p += sprintf(p, "%X", i);
1135 /* Ensure that the string remains NUL-terminated: */
1138 /* Advance the caller's end-of-string pointer: */
1143 * looks like: "amba:dN"
1145 * N is exactly 8 digits, where each is an upper-case hex digit, or
1146 * a ? or [] pattern matching exactly one digit.
1148 static int do_amba_entry(const char *filename,
1149 void *symval, char *alias)
1153 DEF_FIELD(symval, amba_id, id);
1154 DEF_FIELD(symval, amba_id, mask);
1156 if ((id & mask) != id)
1157 fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
1158 "id=0x%08X, mask=0x%08X. Please fix this driver.\n",
1159 filename, id, mask);
1161 p += sprintf(alias, "amba:d");
1162 for (digit = 0; digit < 8; digit++)
1163 append_nibble_mask(&p,
1164 (id >> (4 * (7 - digit))) & 0xf,
1165 (mask >> (4 * (7 - digit))) & 0xf);
1171 * looks like: "mipscdmm:tN"
1173 * N is exactly 2 digits, where each is an upper-case hex digit, or
1174 * a ? or [] pattern matching exactly one digit.
1176 static int do_mips_cdmm_entry(const char *filename,
1177 void *symval, char *alias)
1179 DEF_FIELD(symval, mips_cdmm_device_id, type);
1181 sprintf(alias, "mipscdmm:t%02X*", type);
1185 /* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
1186 * All fields are numbers. It would be nicer to use strings for vendor
1187 * and feature, but getting those out of the build system here is too
1191 static int do_x86cpu_entry(const char *filename, void *symval,
1194 DEF_FIELD(symval, x86_cpu_id, feature);
1195 DEF_FIELD(symval, x86_cpu_id, family);
1196 DEF_FIELD(symval, x86_cpu_id, model);
1197 DEF_FIELD(symval, x86_cpu_id, vendor);
1199 strcpy(alias, "cpu:type:x86,");
1200 ADD(alias, "ven", vendor != X86_VENDOR_ANY, vendor);
1201 ADD(alias, "fam", family != X86_FAMILY_ANY, family);
1202 ADD(alias, "mod", model != X86_MODEL_ANY, model);
1203 strcat(alias, ":feature:*");
1204 if (feature != X86_FEATURE_ANY)
1205 sprintf(alias + strlen(alias), "%04X*", feature);
1209 /* LOOKS like cpu:type:*:feature:*FEAT* */
1210 static int do_cpu_entry(const char *filename, void *symval, char *alias)
1212 DEF_FIELD(symval, cpu_feature, feature);
1214 sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
1218 /* Looks like: mei:S:uuid:N:* */
1219 static int do_mei_entry(const char *filename, void *symval,
1222 DEF_FIELD_ADDR(symval, mei_cl_device_id, name);
1223 DEF_FIELD_ADDR(symval, mei_cl_device_id, uuid);
1224 DEF_FIELD(symval, mei_cl_device_id, version);
1226 sprintf(alias, MEI_CL_MODULE_PREFIX);
1227 sprintf(alias + strlen(alias), "%s:", (*name)[0] ? *name : "*");
1228 add_uuid(alias, *uuid);
1229 ADD(alias, ":", version != MEI_CL_VERSION_ANY, version);
1231 strcat(alias, ":*");
1236 /* Looks like: rapidio:vNdNavNadN */
1237 static int do_rio_entry(const char *filename,
1238 void *symval, char *alias)
1240 DEF_FIELD(symval, rio_device_id, did);
1241 DEF_FIELD(symval, rio_device_id, vid);
1242 DEF_FIELD(symval, rio_device_id, asm_did);
1243 DEF_FIELD(symval, rio_device_id, asm_vid);
1245 strcpy(alias, "rapidio:");
1246 ADD(alias, "v", vid != RIO_ANY_ID, vid);
1247 ADD(alias, "d", did != RIO_ANY_ID, did);
1248 ADD(alias, "av", asm_vid != RIO_ANY_ID, asm_vid);
1249 ADD(alias, "ad", asm_did != RIO_ANY_ID, asm_did);
1251 add_wildcard(alias);
1255 /* Looks like: ulpi:vNpN */
1256 static int do_ulpi_entry(const char *filename, void *symval,
1259 DEF_FIELD(symval, ulpi_device_id, vendor);
1260 DEF_FIELD(symval, ulpi_device_id, product);
1262 sprintf(alias, "ulpi:v%04xp%04x", vendor, product);
1267 /* Looks like: hdaudio:vNrNaN */
1268 static int do_hda_entry(const char *filename, void *symval, char *alias)
1270 DEF_FIELD(symval, hda_device_id, vendor_id);
1271 DEF_FIELD(symval, hda_device_id, rev_id);
1272 DEF_FIELD(symval, hda_device_id, api_version);
1274 strcpy(alias, "hdaudio:");
1275 ADD(alias, "v", vendor_id != 0, vendor_id);
1276 ADD(alias, "r", rev_id != 0, rev_id);
1277 ADD(alias, "a", api_version != 0, api_version);
1279 add_wildcard(alias);
1283 /* Looks like: sdw:mNpNvNcN */
1284 static int do_sdw_entry(const char *filename, void *symval, char *alias)
1286 DEF_FIELD(symval, sdw_device_id, mfg_id);
1287 DEF_FIELD(symval, sdw_device_id, part_id);
1288 DEF_FIELD(symval, sdw_device_id, sdw_version);
1289 DEF_FIELD(symval, sdw_device_id, class_id);
1291 strcpy(alias, "sdw:");
1292 ADD(alias, "m", mfg_id != 0, mfg_id);
1293 ADD(alias, "p", part_id != 0, part_id);
1294 ADD(alias, "v", sdw_version != 0, sdw_version);
1295 ADD(alias, "c", class_id != 0, class_id);
1297 add_wildcard(alias);
1301 /* Looks like: fsl-mc:vNdN */
1302 static int do_fsl_mc_entry(const char *filename, void *symval,
1305 DEF_FIELD(symval, fsl_mc_device_id, vendor);
1306 DEF_FIELD_ADDR(symval, fsl_mc_device_id, obj_type);
1308 sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
1312 /* Looks like: tbsvc:kSpNvNrN */
1313 static int do_tbsvc_entry(const char *filename, void *symval, char *alias)
1315 DEF_FIELD(symval, tb_service_id, match_flags);
1316 DEF_FIELD_ADDR(symval, tb_service_id, protocol_key);
1317 DEF_FIELD(symval, tb_service_id, protocol_id);
1318 DEF_FIELD(symval, tb_service_id, protocol_version);
1319 DEF_FIELD(symval, tb_service_id, protocol_revision);
1321 strcpy(alias, "tbsvc:");
1322 if (match_flags & TBSVC_MATCH_PROTOCOL_KEY)
1323 sprintf(alias + strlen(alias), "k%s", *protocol_key);
1325 strcat(alias + strlen(alias), "k*");
1326 ADD(alias, "p", match_flags & TBSVC_MATCH_PROTOCOL_ID, protocol_id);
1327 ADD(alias, "v", match_flags & TBSVC_MATCH_PROTOCOL_VERSION,
1329 ADD(alias, "r", match_flags & TBSVC_MATCH_PROTOCOL_REVISION,
1332 add_wildcard(alias);
1336 /* Looks like: typec:idNmN */
1337 static int do_typec_entry(const char *filename, void *symval, char *alias)
1339 DEF_FIELD(symval, typec_device_id, svid);
1340 DEF_FIELD(symval, typec_device_id, mode);
1342 sprintf(alias, "typec:id%04X", svid);
1343 ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
1348 /* Looks like: tee:uuid */
1349 static int do_tee_entry(const char *filename, void *symval, char *alias)
1351 DEF_FIELD(symval, tee_client_device_id, uuid);
1353 sprintf(alias, "tee:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
1354 uuid.b[0], uuid.b[1], uuid.b[2], uuid.b[3], uuid.b[4],
1355 uuid.b[5], uuid.b[6], uuid.b[7], uuid.b[8], uuid.b[9],
1356 uuid.b[10], uuid.b[11], uuid.b[12], uuid.b[13], uuid.b[14],
1359 add_wildcard(alias);
1363 /* Looks like: wmi:guid */
1364 static int do_wmi_entry(const char *filename, void *symval, char *alias)
1367 DEF_FIELD_ADDR(symval, wmi_device_id, guid_string);
1369 if (strlen(*guid_string) != UUID_STRING_LEN) {
1370 warn("Invalid WMI device id 'wmi:%s' in '%s'\n",
1371 *guid_string, filename);
1375 len = snprintf(alias, ALIAS_SIZE, WMI_MODULE_PREFIX "%s", *guid_string);
1376 if (len < 0 || len >= ALIAS_SIZE) {
1377 warn("Could not generate all MODULE_ALIAS's in '%s'\n",
1384 /* Looks like: mhi:S */
1385 static int do_mhi_entry(const char *filename, void *symval, char *alias)
1387 DEF_FIELD_ADDR(symval, mhi_device_id, chan);
1388 sprintf(alias, MHI_DEVICE_MODALIAS_FMT, *chan);
1392 /* Looks like: mhi_ep:S */
1393 static int do_mhi_ep_entry(const char *filename, void *symval, char *alias)
1395 DEF_FIELD_ADDR(symval, mhi_device_id, chan);
1396 sprintf(alias, MHI_EP_DEVICE_MODALIAS_FMT, *chan);
1401 /* Looks like: ishtp:{guid} */
1402 static int do_ishtp_entry(const char *filename, void *symval, char *alias)
1404 DEF_FIELD(symval, ishtp_device_id, guid);
1406 strcpy(alias, ISHTP_MODULE_PREFIX "{");
1407 add_guid(alias, guid);
1413 static int do_auxiliary_entry(const char *filename, void *symval, char *alias)
1415 DEF_FIELD_ADDR(symval, auxiliary_device_id, name);
1416 sprintf(alias, AUXILIARY_MODULE_PREFIX "%s", *name);
1422 * Looks like: ssam:dNcNtNiNfN
1424 * N is exactly 2 digits, where each is an upper-case hex digit.
1426 static int do_ssam_entry(const char *filename, void *symval, char *alias)
1428 DEF_FIELD(symval, ssam_device_id, match_flags);
1429 DEF_FIELD(symval, ssam_device_id, domain);
1430 DEF_FIELD(symval, ssam_device_id, category);
1431 DEF_FIELD(symval, ssam_device_id, target);
1432 DEF_FIELD(symval, ssam_device_id, instance);
1433 DEF_FIELD(symval, ssam_device_id, function);
1435 sprintf(alias, "ssam:d%02Xc%02X", domain, category);
1436 ADD(alias, "t", match_flags & SSAM_MATCH_TARGET, target);
1437 ADD(alias, "i", match_flags & SSAM_MATCH_INSTANCE, instance);
1438 ADD(alias, "f", match_flags & SSAM_MATCH_FUNCTION, function);
1443 /* Looks like: dfl:tNfN */
1444 static int do_dfl_entry(const char *filename, void *symval, char *alias)
1446 DEF_FIELD(symval, dfl_device_id, type);
1447 DEF_FIELD(symval, dfl_device_id, feature_id);
1449 sprintf(alias, "dfl:t%04Xf%04X", type, feature_id);
1451 add_wildcard(alias);
1455 /* Does namelen bytes of name exactly match the symbol? */
1456 static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1458 if (namelen != strlen(symbol))
1461 return memcmp(name, symbol, namelen) == 0;
1464 static void do_table(void *symval, unsigned long size,
1465 unsigned long id_size,
1466 const char *device_id,
1467 int (*do_entry)(const char *filename, void *symval, char *alias),
1471 char alias[ALIAS_SIZE];
1473 device_id_check(mod->name, device_id, size, id_size, symval);
1474 /* Leave last one: it's the terminator. */
1477 for (i = 0; i < size; i += id_size) {
1478 if (do_entry(mod->name, symval+i, alias)) {
1479 buf_printf(&mod->dev_table_buf,
1480 "MODULE_ALIAS(\"%s\");\n", alias);
1485 static const struct devtable devtable[] = {
1486 {"hid", SIZE_hid_device_id, do_hid_entry},
1487 {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
1488 {"pci", SIZE_pci_device_id, do_pci_entry},
1489 {"ccw", SIZE_ccw_device_id, do_ccw_entry},
1490 {"ap", SIZE_ap_device_id, do_ap_entry},
1491 {"css", SIZE_css_device_id, do_css_entry},
1492 {"serio", SIZE_serio_device_id, do_serio_entry},
1493 {"acpi", SIZE_acpi_device_id, do_acpi_entry},
1494 {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
1495 {"vio", SIZE_vio_device_id, do_vio_entry},
1496 {"input", SIZE_input_device_id, do_input_entry},
1497 {"eisa", SIZE_eisa_device_id, do_eisa_entry},
1498 {"parisc", SIZE_parisc_device_id, do_parisc_entry},
1499 {"sdio", SIZE_sdio_device_id, do_sdio_entry},
1500 {"ssb", SIZE_ssb_device_id, do_ssb_entry},
1501 {"bcma", SIZE_bcma_device_id, do_bcma_entry},
1502 {"virtio", SIZE_virtio_device_id, do_virtio_entry},
1503 {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
1504 {"rpmsg", SIZE_rpmsg_device_id, do_rpmsg_entry},
1505 {"i2c", SIZE_i2c_device_id, do_i2c_entry},
1506 {"i3c", SIZE_i3c_device_id, do_i3c_entry},
1507 {"spi", SIZE_spi_device_id, do_spi_entry},
1508 {"dmi", SIZE_dmi_system_id, do_dmi_entry},
1509 {"platform", SIZE_platform_device_id, do_platform_entry},
1510 {"mdio", SIZE_mdio_device_id, do_mdio_entry},
1511 {"zorro", SIZE_zorro_device_id, do_zorro_entry},
1512 {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
1513 {"ipack", SIZE_ipack_device_id, do_ipack_entry},
1514 {"amba", SIZE_amba_id, do_amba_entry},
1515 {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
1516 {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
1517 {"cpu", SIZE_cpu_feature, do_cpu_entry},
1518 {"mei", SIZE_mei_cl_device_id, do_mei_entry},
1519 {"rapidio", SIZE_rio_device_id, do_rio_entry},
1520 {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
1521 {"hdaudio", SIZE_hda_device_id, do_hda_entry},
1522 {"sdw", SIZE_sdw_device_id, do_sdw_entry},
1523 {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
1524 {"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
1525 {"typec", SIZE_typec_device_id, do_typec_entry},
1526 {"tee", SIZE_tee_client_device_id, do_tee_entry},
1527 {"wmi", SIZE_wmi_device_id, do_wmi_entry},
1528 {"mhi", SIZE_mhi_device_id, do_mhi_entry},
1529 {"mhi_ep", SIZE_mhi_device_id, do_mhi_ep_entry},
1530 {"auxiliary", SIZE_auxiliary_device_id, do_auxiliary_entry},
1531 {"ssam", SIZE_ssam_device_id, do_ssam_entry},
1532 {"dfl", SIZE_dfl_device_id, do_dfl_entry},
1533 {"ishtp", SIZE_ishtp_device_id, do_ishtp_entry},
1536 /* Create MODULE_ALIAS() statements.
1537 * At this time, we cannot write the actual output C source yet,
1538 * so we write into the mod->dev_table_buf buffer. */
1539 void handle_moddevtable(struct module *mod, struct elf_info *info,
1540 Elf_Sym *sym, const char *symname)
1544 const char *name, *identifier;
1545 unsigned int namelen;
1547 /* We're looking for a section relative symbol */
1548 if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
1551 /* We're looking for an object */
1552 if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
1555 /* All our symbols are of form __mod_<name>__<identifier>_device_table. */
1556 if (strncmp(symname, "__mod_", strlen("__mod_")))
1558 name = symname + strlen("__mod_");
1559 namelen = strlen(name);
1560 if (namelen < strlen("_device_table"))
1562 if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
1564 identifier = strstr(name, "__");
1567 namelen = identifier - name;
1569 /* Handle all-NULL symbols allocated into .bss */
1570 if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
1571 zeros = calloc(1, sym->st_size);
1574 symval = sym_get_data(info, sym);
1577 /* First handle the "special" cases */
1578 if (sym_is(name, namelen, "usb"))
1579 do_usb_table(symval, sym->st_size, mod);
1580 if (sym_is(name, namelen, "of"))
1581 do_of_table(symval, sym->st_size, mod);
1582 else if (sym_is(name, namelen, "pnp"))
1583 do_pnp_device_entry(symval, sym->st_size, mod);
1584 else if (sym_is(name, namelen, "pnp_card"))
1585 do_pnp_card_entries(symval, sym->st_size, mod);
1589 for (i = 0; i < ARRAY_SIZE(devtable); i++) {
1590 const struct devtable *p = &devtable[i];
1592 if (sym_is(name, namelen, p->device_id)) {
1593 do_table(symval, sym->st_size, p->id_size,
1594 p->device_id, p->do_entry, mod);
1602 /* Now add out buffered information to the generated C source */
1603 void add_moddevtable(struct buffer *buf, struct module *mod)
1605 buf_printf(buf, "\n");
1606 buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos);
1607 free(mod->dev_table_buf.p);