| /* Simple code to turn various tables in an ELF file into alias definitions. |
| * This deals with kernel datastructures where they should be |
| * dealt with: in the kernel source. |
| * |
| * Copyright 2002-2003 Rusty Russell, IBM Corporation |
| * 2003 Kai Germaschewski |
| * |
| * |
| * This software may be used and distributed according to the terms |
| * of the GNU General Public License, incorporated herein by reference. |
| */ |
| |
| #include "modpost.h" |
| |
| /* We use the ELF typedefs for kernel_ulong_t but bite the bullet and |
| * use either stdint.h or inttypes.h for the rest. */ |
| #if KERNEL_ELFCLASS == ELFCLASS32 |
| typedef Elf32_Addr kernel_ulong_t; |
| #define BITS_PER_LONG 32 |
| #else |
| typedef Elf64_Addr kernel_ulong_t; |
| #define BITS_PER_LONG 64 |
| #endif |
| #ifdef __sun__ |
| #include <inttypes.h> |
| #else |
| #include <stdint.h> |
| #endif |
| |
| #include <ctype.h> |
| #include <stdbool.h> |
| |
| typedef uint32_t __u32; |
| typedef uint16_t __u16; |
| typedef unsigned char __u8; |
| |
| /* Big exception to the "don't include kernel headers into userspace, which |
| * even potentially has different endianness and word sizes, since |
| * we handle those differences explicitly below */ |
| #include "../../include/linux/mod_devicetable.h" |
| |
| /* This array collects all instances that use the generic do_table */ |
| struct devtable { |
| const char *device_id; /* name of table, __mod_<name>_device_table. */ |
| unsigned long id_size; |
| void *function; |
| }; |
| |
| #define ___cat(a,b) a ## b |
| #define __cat(a,b) ___cat(a,b) |
| |
| /* we need some special handling for this host tool running eventually on |
| * Darwin. The Mach-O section handling is a bit different than ELF section |
| * handling. The differnces in detail are: |
| * a) we have segments which have sections |
| * b) we need a API call to get the respective section symbols */ |
| #if defined(__MACH__) |
| #include <mach-o/getsect.h> |
| |
| #define INIT_SECTION(name) do { \ |
| unsigned long name ## _len; \ |
| char *__cat(pstart_,name) = getsectdata("__TEXT", \ |
| #name, &__cat(name,_len)); \ |
| char *__cat(pstop_,name) = __cat(pstart_,name) + \ |
| __cat(name, _len); \ |
| __cat(__start_,name) = (void *)__cat(pstart_,name); \ |
| __cat(__stop_,name) = (void *)__cat(pstop_,name); \ |
| } while (0) |
| #define SECTION(name) __attribute__((section("__TEXT, " #name))) |
| |
| struct devtable **__start___devtable, **__stop___devtable; |
| #else |
| #define INIT_SECTION(name) /* no-op for ELF */ |
| #define SECTION(name) __attribute__((section(#name))) |
| |
| /* We construct a table of pointers in an ELF section (pointers generally |
| * go unpadded by gcc). ld creates boundary syms for us. */ |
| extern struct devtable *__start___devtable[], *__stop___devtable[]; |
| #endif /* __MACH__ */ |
| |
| #if __GNUC__ == 3 && __GNUC_MINOR__ < 3 |
| # define __used __attribute__((__unused__)) |
| #else |
| # define __used __attribute__((__used__)) |
| #endif |
| |
| /* Add a table entry. We test function type matches while we're here. */ |
| #define ADD_TO_DEVTABLE(device_id, type, function) \ |
| static struct devtable __cat(devtable,__LINE__) = { \ |
| device_id + 0*sizeof((function)((const char *)NULL, \ |
| (type *)NULL, \ |
| (char *)NULL)), \ |
| sizeof(type), (function) }; \ |
| static struct devtable *SECTION(__devtable) __used \ |
| __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__) |
| |
| #define ADD(str, sep, cond, field) \ |
| do { \ |
| strcat(str, sep); \ |
| if (cond) \ |
| sprintf(str + strlen(str), \ |
| sizeof(field) == 1 ? "%02X" : \ |
| sizeof(field) == 2 ? "%04X" : \ |
| sizeof(field) == 4 ? "%08X" : "", \ |
| field); \ |
| else \ |
| sprintf(str + strlen(str), "*"); \ |
| } while(0) |
| |
| /* Always end in a wildcard, for future extension */ |
| static inline void add_wildcard(char *str) |
| { |
| int len = strlen(str); |
| |
| if (str[len - 1] != '*') |
| strcat(str + len, "*"); |
| } |
| |
| unsigned int cross_build = 0; |
| /** |
| * Check that sizeof(device_id type) are consistent with size of section |
| * in .o file. If in-consistent then userspace and kernel does not agree |
| * on actual size which is a bug. |
| * Also verify that the final entry in the table is all zeros. |
| * Ignore both checks if build host differ from target host and size differs. |
| **/ |
| static void device_id_check(const char *modname, const char *device_id, |
| unsigned long size, unsigned long id_size, |
| void *symval) |
| { |
| int i; |
| |
| if (size % id_size || size < id_size) { |
| if (cross_build != 0) |
| return; |
| fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo " |
| "of the size of section __mod_%s_device_table=%lu.\n" |
| "Fix definition of struct %s_device_id " |
| "in mod_devicetable.h\n", |
| modname, device_id, id_size, device_id, size, device_id); |
| } |
| /* Verify last one is a terminator */ |
| for (i = 0; i < id_size; i++ ) { |
| if (*(uint8_t*)(symval+size-id_size+i)) { |
| fprintf(stderr,"%s: struct %s_device_id is %lu bytes. " |
| "The last of %lu is:\n", |
| modname, device_id, id_size, size / id_size); |
| for (i = 0; i < id_size; i++ ) |
| fprintf(stderr,"0x%02x ", |
| *(uint8_t*)(symval+size-id_size+i) ); |
| fprintf(stderr,"\n"); |
| fatal("%s: struct %s_device_id is not terminated " |
| "with a NULL entry!\n", modname, device_id); |
| } |
| } |
| } |
| |
| /* USB is special because the bcdDevice can be matched against a numeric range */ |
| /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */ |
| static void do_usb_entry(struct usb_device_id *id, |
| unsigned int bcdDevice_initial, int bcdDevice_initial_digits, |
| unsigned char range_lo, unsigned char range_hi, |
| unsigned char max, struct module *mod) |
| { |
| char alias[500]; |
| strcpy(alias, "usb:"); |
| ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR, |
| id->idVendor); |
| ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT, |
| id->idProduct); |
| |
| strcat(alias, "d"); |
| if (bcdDevice_initial_digits) |
| sprintf(alias + strlen(alias), "%0*X", |
| bcdDevice_initial_digits, bcdDevice_initial); |
| if (range_lo == range_hi) |
| sprintf(alias + strlen(alias), "%X", range_lo); |
| else if (range_lo > 0 || range_hi < max) { |
| if (range_lo > 0x9 || range_hi < 0xA) |
| sprintf(alias + strlen(alias), |
| "[%X-%X]", |
| range_lo, |
| range_hi); |
| else { |
| sprintf(alias + strlen(alias), |
| range_lo < 0x9 ? "[%X-9" : "[%X", |
| range_lo); |
| sprintf(alias + strlen(alias), |
| range_hi > 0xA ? "a-%X]" : "%X]", |
| range_lo); |
| } |
| } |
| if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1)) |
| strcat(alias, "*"); |
| |
| ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS, |
| id->bDeviceClass); |
| ADD(alias, "dsc", |
| id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS, |
| id->bDeviceSubClass); |
| ADD(alias, "dp", |
| id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL, |
| id->bDeviceProtocol); |
| ADD(alias, "ic", |
| id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS, |
| id->bInterfaceClass); |
| ADD(alias, "isc", |
| id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS, |
| id->bInterfaceSubClass); |
| ADD(alias, "ip", |
| id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL, |
| id->bInterfaceProtocol); |
| |
| add_wildcard(alias); |
| buf_printf(&mod->dev_table_buf, |
| "MODULE_ALIAS(\"%s\");\n", alias); |
| } |
| |
| /* Handles increment/decrement of BCD formatted integers */ |
| /* Returns the previous value, so it works like i++ or i-- */ |
| static unsigned int incbcd(unsigned int *bcd, |
| int inc, |
| unsigned char max, |
| size_t chars) |
| { |
| unsigned int init = *bcd, i, j; |
| unsigned long long c, dec = 0; |
| |
| /* If bcd is not in BCD format, just increment */ |
| if (max > 0x9) { |
| *bcd += inc; |
| return init; |
| } |
| |
| /* Convert BCD to Decimal */ |
| for (i=0 ; i < chars ; i++) { |
| c = (*bcd >> (i << 2)) & 0xf; |
| c = c > 9 ? 9 : c; /* force to bcd just in case */ |
| for (j=0 ; j < i ; j++) |
| c = c * 10; |
| dec += c; |
| } |
| |
| /* Do our increment/decrement */ |
| dec += inc; |
| *bcd = 0; |
| |
| /* Convert back to BCD */ |
| for (i=0 ; i < chars ; i++) { |
| for (c=1,j=0 ; j < i ; j++) |
| c = c * 10; |
| c = (dec / c) % 10; |
| *bcd += c << (i << 2); |
| } |
| return init; |
| } |
| |
| static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod) |
| { |
| unsigned int devlo, devhi; |
| unsigned char chi, clo, max; |
| int ndigits; |
| |
| id->match_flags = TO_NATIVE(id->match_flags); |
| id->idVendor = TO_NATIVE(id->idVendor); |
| id->idProduct = TO_NATIVE(id->idProduct); |
| |
| devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ? |
| TO_NATIVE(id->bcdDevice_lo) : 0x0U; |
| devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ? |
| TO_NATIVE(id->bcdDevice_hi) : ~0x0U; |
| |
| /* Figure out if this entry is in bcd or hex format */ |
| max = 0x9; /* Default to decimal format */ |
| for (ndigits = 0 ; ndigits < sizeof(id->bcdDevice_lo) * 2 ; ndigits++) { |
| clo = (devlo >> (ndigits << 2)) & 0xf; |
| chi = ((devhi > 0x9999 ? 0x9999 : devhi) >> (ndigits << 2)) & 0xf; |
| if (clo > max || chi > max) { |
| max = 0xf; |
| break; |
| } |
| } |
| |
| /* |
| * Some modules (visor) have empty slots as placeholder for |
| * run-time specification that results in catch-all alias |
| */ |
| if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass)) |
| return; |
| |
| /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */ |
| for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) { |
| clo = devlo & 0xf; |
| chi = devhi & 0xf; |
| if (chi > max) /* If we are in bcd mode, truncate if necessary */ |
| chi = max; |
| devlo >>= 4; |
| devhi >>= 4; |
| |
| if (devlo == devhi || !ndigits) { |
| do_usb_entry(id, devlo, ndigits, clo, chi, max, mod); |
| break; |
| } |
| |
| if (clo > 0x0) |
| do_usb_entry(id, |
| incbcd(&devlo, 1, max, |
| sizeof(id->bcdDevice_lo) * 2), |
| ndigits, clo, max, max, mod); |
| |
| if (chi < max) |
| do_usb_entry(id, |
| incbcd(&devhi, -1, max, |
| sizeof(id->bcdDevice_lo) * 2), |
| ndigits, 0x0, chi, max, mod); |
| } |
| } |
| |
| static void do_usb_table(void *symval, unsigned long size, |
| struct module *mod) |
| { |
| unsigned int i; |
| const unsigned long id_size = sizeof(struct usb_device_id); |
| |
| device_id_check(mod->name, "usb", size, id_size, symval); |
| |
| /* Leave last one: it's the terminator. */ |
| size -= id_size; |
| |
| for (i = 0; i < size; i += id_size) |
| do_usb_entry_multi(symval + i, mod); |
| } |
| |
| /* Looks like: hid:bNvNpN */ |
| static int do_hid_entry(const char *filename, |
| struct hid_device_id *id, char *alias) |
| { |
| id->bus = TO_NATIVE(id->bus); |
| id->vendor = TO_NATIVE(id->vendor); |
| id->product = TO_NATIVE(id->product); |
| |
| sprintf(alias, "hid:b%04X", id->bus); |
| ADD(alias, "v", id->vendor != HID_ANY_ID, id->vendor); |
| ADD(alias, "p", id->product != HID_ANY_ID, id->product); |
| |
| return 1; |
| } |
| ADD_TO_DEVTABLE("hid", struct hid_device_id, do_hid_entry); |
| |
| /* Looks like: ieee1394:venNmoNspNverN */ |
| static int do_ieee1394_entry(const char *filename, |
| struct ieee1394_device_id *id, char *alias) |
| { |
| id->match_flags = TO_NATIVE(id->match_flags); |
| id->vendor_id = TO_NATIVE(id->vendor_id); |
| id->model_id = TO_NATIVE(id->model_id); |
| id->specifier_id = TO_NATIVE(id->specifier_id); |
| id->version = TO_NATIVE(id->version); |
| |
| strcpy(alias, "ieee1394:"); |
| ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID, |
| id->vendor_id); |
| ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID, |
| id->model_id); |
| ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID, |
| id->specifier_id); |
| ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION, |
| id->version); |
| |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("ieee1394", struct ieee1394_device_id, do_ieee1394_entry); |
| |
| /* Looks like: pci:vNdNsvNsdNbcNscNiN. */ |
| static int do_pci_entry(const char *filename, |
| struct pci_device_id *id, char *alias) |
| { |
| /* Class field can be divided into these three. */ |
| unsigned char baseclass, subclass, interface, |
| baseclass_mask, subclass_mask, interface_mask; |
| |
| id->vendor = TO_NATIVE(id->vendor); |
| id->device = TO_NATIVE(id->device); |
| id->subvendor = TO_NATIVE(id->subvendor); |
| id->subdevice = TO_NATIVE(id->subdevice); |
| id->class = TO_NATIVE(id->class); |
| id->class_mask = TO_NATIVE(id->class_mask); |
| |
| strcpy(alias, "pci:"); |
| ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor); |
| ADD(alias, "d", id->device != PCI_ANY_ID, id->device); |
| ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor); |
| ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice); |
| |
| baseclass = (id->class) >> 16; |
| baseclass_mask = (id->class_mask) >> 16; |
| subclass = (id->class) >> 8; |
| subclass_mask = (id->class_mask) >> 8; |
| interface = id->class; |
| interface_mask = id->class_mask; |
| |
| if ((baseclass_mask != 0 && baseclass_mask != 0xFF) |
| || (subclass_mask != 0 && subclass_mask != 0xFF) |
| || (interface_mask != 0 && interface_mask != 0xFF)) { |
| warn("Can't handle masks in %s:%04X\n", |
| filename, id->class_mask); |
| return 0; |
| } |
| |
| ADD(alias, "bc", baseclass_mask == 0xFF, baseclass); |
| ADD(alias, "sc", subclass_mask == 0xFF, subclass); |
| ADD(alias, "i", interface_mask == 0xFF, interface); |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("pci", struct pci_device_id, do_pci_entry); |
| |
| /* looks like: "ccw:tNmNdtNdmN" */ |
| static int do_ccw_entry(const char *filename, |
| struct ccw_device_id *id, char *alias) |
| { |
| id->match_flags = TO_NATIVE(id->match_flags); |
| id->cu_type = TO_NATIVE(id->cu_type); |
| id->cu_model = TO_NATIVE(id->cu_model); |
| id->dev_type = TO_NATIVE(id->dev_type); |
| id->dev_model = TO_NATIVE(id->dev_model); |
| |
| strcpy(alias, "ccw:"); |
| ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE, |
| id->cu_type); |
| ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL, |
| id->cu_model); |
| ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE, |
| id->dev_type); |
| ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL, |
| id->dev_model); |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("ccw", struct ccw_device_id, do_ccw_entry); |
| |
| /* looks like: "ap:tN" */ |
| static int do_ap_entry(const char *filename, |
| struct ap_device_id *id, char *alias) |
| { |
| sprintf(alias, "ap:t%02X*", id->dev_type); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("ap", struct ap_device_id, do_ap_entry); |
| |
| /* looks like: "css:tN" */ |
| static int do_css_entry(const char *filename, |
| struct css_device_id *id, char *alias) |
| { |
| sprintf(alias, "css:t%01X", id->type); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("css", struct css_device_id, do_css_entry); |
| |
| /* Looks like: "serio:tyNprNidNexN" */ |
| static int do_serio_entry(const char *filename, |
| struct serio_device_id *id, char *alias) |
| { |
| id->type = TO_NATIVE(id->type); |
| id->proto = TO_NATIVE(id->proto); |
| id->id = TO_NATIVE(id->id); |
| id->extra = TO_NATIVE(id->extra); |
| |
| strcpy(alias, "serio:"); |
| ADD(alias, "ty", id->type != SERIO_ANY, id->type); |
| ADD(alias, "pr", id->proto != SERIO_ANY, id->proto); |
| ADD(alias, "id", id->id != SERIO_ANY, id->id); |
| ADD(alias, "ex", id->extra != SERIO_ANY, id->extra); |
| |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("serio", struct serio_device_id, do_serio_entry); |
| |
| /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */ |
| static int do_acpi_entry(const char *filename, |
| struct acpi_device_id *id, char *alias) |
| { |
| sprintf(alias, "acpi*:%s:*", id->id); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("acpi", struct acpi_device_id, do_acpi_entry); |
| |
| /* looks like: "pnp:dD" */ |
| static void do_pnp_device_entry(void *symval, unsigned long size, |
| struct module *mod) |
| { |
| const unsigned long id_size = sizeof(struct pnp_device_id); |
| const unsigned int count = (size / id_size)-1; |
| const struct pnp_device_id *devs = symval; |
| unsigned int i; |
| |
| device_id_check(mod->name, "pnp", size, id_size, symval); |
| |
| for (i = 0; i < count; i++) { |
| const char *id = (char *)devs[i].id; |
| char acpi_id[sizeof(devs[0].id)]; |
| int j; |
| |
| buf_printf(&mod->dev_table_buf, |
| "MODULE_ALIAS(\"pnp:d%s*\");\n", id); |
| |
| /* fix broken pnp bus lowercasing */ |
| for (j = 0; j < sizeof(acpi_id); j++) |
| acpi_id[j] = toupper(id[j]); |
| buf_printf(&mod->dev_table_buf, |
| "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id); |
| } |
| } |
| |
| /* looks like: "pnp:dD" for every device of the card */ |
| static void do_pnp_card_entries(void *symval, unsigned long size, |
| struct module *mod) |
| { |
| const unsigned long id_size = sizeof(struct pnp_card_device_id); |
| const unsigned int count = (size / id_size)-1; |
| const struct pnp_card_device_id *cards = symval; |
| unsigned int i; |
| |
| device_id_check(mod->name, "pnp", size, id_size, symval); |
| |
| for (i = 0; i < count; i++) { |
| unsigned int j; |
| const struct pnp_card_device_id *card = &cards[i]; |
| |
| for (j = 0; j < PNP_MAX_DEVICES; j++) { |
| const char *id = (char *)card->devs[j].id; |
| int i2, j2; |
| int dup = 0; |
| |
| if (!id[0]) |
| break; |
| |
| /* find duplicate, already added value */ |
| for (i2 = 0; i2 < i && !dup; i2++) { |
| const struct pnp_card_device_id *card2 = &cards[i2]; |
| |
| for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) { |
| const char *id2 = (char *)card2->devs[j2].id; |
| |
| if (!id2[0]) |
| break; |
| |
| if (!strcmp(id, id2)) { |
| dup = 1; |
| break; |
| } |
| } |
| } |
| |
| /* add an individual alias for every device entry */ |
| if (!dup) { |
| char acpi_id[sizeof(card->devs[0].id)]; |
| int k; |
| |
| buf_printf(&mod->dev_table_buf, |
| "MODULE_ALIAS(\"pnp:d%s*\");\n", id); |
| |
| /* fix broken pnp bus lowercasing */ |
| for (k = 0; k < sizeof(acpi_id); k++) |
| acpi_id[k] = toupper(id[k]); |
| buf_printf(&mod->dev_table_buf, |
| "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id); |
| } |
| } |
| } |
| } |
| |
| /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */ |
| static int do_pcmcia_entry(const char *filename, |
| struct pcmcia_device_id *id, char *alias) |
| { |
| unsigned int i; |
| |
| id->match_flags = TO_NATIVE(id->match_flags); |
| id->manf_id = TO_NATIVE(id->manf_id); |
| id->card_id = TO_NATIVE(id->card_id); |
| id->func_id = TO_NATIVE(id->func_id); |
| id->function = TO_NATIVE(id->function); |
| id->device_no = TO_NATIVE(id->device_no); |
| |
| for (i=0; i<4; i++) { |
| id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]); |
| } |
| |
| strcpy(alias, "pcmcia:"); |
| ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID, |
| id->manf_id); |
| ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID, |
| id->card_id); |
| ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID, |
| id->func_id); |
| ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION, |
| id->function); |
| ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO, |
| id->device_no); |
| ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]); |
| ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]); |
| ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]); |
| ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]); |
| |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("pcmcia", struct pcmcia_device_id, do_pcmcia_entry); |
| |
| static int do_of_entry (const char *filename, struct of_device_id *of, char *alias) |
| { |
| int len; |
| char *tmp; |
| len = sprintf (alias, "of:N%sT%s", |
| of->name[0] ? of->name : "*", |
| of->type[0] ? of->type : "*"); |
| |
| if (of->compatible[0]) |
| sprintf (&alias[len], "%sC%s", |
| of->type[0] ? "*" : "", |
| of->compatible); |
| |
| /* Replace all whitespace with underscores */ |
| for (tmp = alias; tmp && *tmp; tmp++) |
| if (isspace (*tmp)) |
| *tmp = '_'; |
| |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("of", struct of_device_id, do_of_entry); |
| |
| static int do_vio_entry(const char *filename, struct vio_device_id *vio, |
| char *alias) |
| { |
| char *tmp; |
| |
| sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*", |
| vio->compat[0] ? vio->compat : "*"); |
| |
| /* Replace all whitespace with underscores */ |
| for (tmp = alias; tmp && *tmp; tmp++) |
| if (isspace (*tmp)) |
| *tmp = '_'; |
| |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("vio", struct vio_device_id, do_vio_entry); |
| |
| #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| |
| static void do_input(char *alias, |
| kernel_ulong_t *arr, unsigned int min, unsigned int max) |
| { |
| unsigned int i; |
| |
| for (i = min; i < max; i++) |
| if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG))) |
| sprintf(alias + strlen(alias), "%X,*", i); |
| } |
| |
| /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */ |
| static int do_input_entry(const char *filename, struct input_device_id *id, |
| char *alias) |
| { |
| sprintf(alias, "input:"); |
| |
| ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype); |
| ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor); |
| ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product); |
| ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version); |
| |
| sprintf(alias + strlen(alias), "-e*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT) |
| do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX); |
| sprintf(alias + strlen(alias), "k*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT) |
| do_input(alias, id->keybit, |
| INPUT_DEVICE_ID_KEY_MIN_INTERESTING, |
| INPUT_DEVICE_ID_KEY_MAX); |
| sprintf(alias + strlen(alias), "r*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT) |
| do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX); |
| sprintf(alias + strlen(alias), "a*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT) |
| do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX); |
| sprintf(alias + strlen(alias), "m*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT) |
| do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX); |
| sprintf(alias + strlen(alias), "l*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT) |
| do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX); |
| sprintf(alias + strlen(alias), "s*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT) |
| do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX); |
| sprintf(alias + strlen(alias), "f*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT) |
| do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX); |
| sprintf(alias + strlen(alias), "w*"); |
| if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT) |
| do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("input", struct input_device_id, do_input_entry); |
| |
| static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa, |
| char *alias) |
| { |
| if (eisa->sig[0]) |
| sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig); |
| else |
| strcat(alias, "*"); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("eisa", struct eisa_device_id, do_eisa_entry); |
| |
| /* Looks like: parisc:tNhvNrevNsvN */ |
| static int do_parisc_entry(const char *filename, struct parisc_device_id *id, |
| char *alias) |
| { |
| id->hw_type = TO_NATIVE(id->hw_type); |
| id->hversion = TO_NATIVE(id->hversion); |
| id->hversion_rev = TO_NATIVE(id->hversion_rev); |
| id->sversion = TO_NATIVE(id->sversion); |
| |
| strcpy(alias, "parisc:"); |
| ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type); |
| ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion); |
| ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev); |
| ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion); |
| |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("parisc", struct parisc_device_id, do_parisc_entry); |
| |
| /* Looks like: sdio:cNvNdN. */ |
| static int do_sdio_entry(const char *filename, |
| struct sdio_device_id *id, char *alias) |
| { |
| id->class = TO_NATIVE(id->class); |
| id->vendor = TO_NATIVE(id->vendor); |
| id->device = TO_NATIVE(id->device); |
| |
| strcpy(alias, "sdio:"); |
| ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class); |
| ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor); |
| ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device); |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("sdio", struct sdio_device_id, do_sdio_entry); |
| |
| /* Looks like: ssb:vNidNrevN. */ |
| static int do_ssb_entry(const char *filename, |
| struct ssb_device_id *id, char *alias) |
| { |
| id->vendor = TO_NATIVE(id->vendor); |
| id->coreid = TO_NATIVE(id->coreid); |
| id->revision = TO_NATIVE(id->revision); |
| |
| strcpy(alias, "ssb:"); |
| ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor); |
| ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid); |
| ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision); |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("ssb", struct ssb_device_id, do_ssb_entry); |
| |
| /* Looks like: bcma:mNidNrevNclN. */ |
| static int do_bcma_entry(const char *filename, |
| struct bcma_device_id *id, char *alias) |
| { |
| id->manuf = TO_NATIVE(id->manuf); |
| id->id = TO_NATIVE(id->id); |
| id->rev = TO_NATIVE(id->rev); |
| id->class = TO_NATIVE(id->class); |
| |
| strcpy(alias, "bcma:"); |
| ADD(alias, "m", id->manuf != BCMA_ANY_MANUF, id->manuf); |
| ADD(alias, "id", id->id != BCMA_ANY_ID, id->id); |
| ADD(alias, "rev", id->rev != BCMA_ANY_REV, id->rev); |
| ADD(alias, "cl", id->class != BCMA_ANY_CLASS, id->class); |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("bcma", struct bcma_device_id, do_bcma_entry); |
| |
| /* Looks like: virtio:dNvN */ |
| static int do_virtio_entry(const char *filename, struct virtio_device_id *id, |
| char *alias) |
| { |
| id->device = TO_NATIVE(id->device); |
| id->vendor = TO_NATIVE(id->vendor); |
| |
| strcpy(alias, "virtio:"); |
| ADD(alias, "d", id->device != VIRTIO_DEV_ANY_ID, id->device); |
| ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor); |
| |
| add_wildcard(alias); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("virtio", struct virtio_device_id, do_virtio_entry); |
| |
| /* |
| * Looks like: vmbus:guid |
| * Each byte of the guid will be represented by two hex characters |
| * in the name. |
| */ |
| |
| static int do_vmbus_entry(const char *filename, struct hv_vmbus_device_id *id, |
| char *alias) |
| { |
| int i; |
| char guid_name[((sizeof(id->guid) + 1)) * 2]; |
| |
| for (i = 0; i < (sizeof(id->guid) * 2); i += 2) |
| sprintf(&guid_name[i], "%02x", id->guid[i/2]); |
| |
| strcpy(alias, "vmbus:"); |
| strcat(alias, guid_name); |
| |
| return 1; |
| } |
| ADD_TO_DEVTABLE("vmbus", struct hv_vmbus_device_id, do_vmbus_entry); |
| |
| /* Looks like: i2c:S */ |
| static int do_i2c_entry(const char *filename, struct i2c_device_id *id, |
| char *alias) |
| { |
| sprintf(alias, I2C_MODULE_PREFIX "%s", id->name); |
| |
| return 1; |
| } |
| ADD_TO_DEVTABLE("i2c", struct i2c_device_id, do_i2c_entry); |
| |
| /* Looks like: spi:S */ |
| static int do_spi_entry(const char *filename, struct spi_device_id *id, |
| char *alias) |
| { |
| sprintf(alias, SPI_MODULE_PREFIX "%s", id->name); |
| |
| return 1; |
| } |
| ADD_TO_DEVTABLE("spi", struct spi_device_id, do_spi_entry); |
| |
| static const struct dmifield { |
| const char *prefix; |
| int field; |
| } dmi_fields[] = { |
| { "bvn", DMI_BIOS_VENDOR }, |
| { "bvr", DMI_BIOS_VERSION }, |
| { "bd", DMI_BIOS_DATE }, |
| { "svn", DMI_SYS_VENDOR }, |
| { "pn", DMI_PRODUCT_NAME }, |
| { "pvr", DMI_PRODUCT_VERSION }, |
| { "rvn", DMI_BOARD_VENDOR }, |
| { "rn", DMI_BOARD_NAME }, |
| { "rvr", DMI_BOARD_VERSION }, |
| { "cvn", DMI_CHASSIS_VENDOR }, |
| { "ct", DMI_CHASSIS_TYPE }, |
| { "cvr", DMI_CHASSIS_VERSION }, |
| { NULL, DMI_NONE } |
| }; |
| |
| static void dmi_ascii_filter(char *d, const char *s) |
| { |
| /* Filter out characters we don't want to see in the modalias string */ |
| for (; *s; s++) |
| if (*s > ' ' && *s < 127 && *s != ':') |
| *(d++) = *s; |
| |
| *d = 0; |
| } |
| |
| |
| static int do_dmi_entry(const char *filename, struct dmi_system_id *id, |
| char *alias) |
| { |
| int i, j; |
| |
| sprintf(alias, "dmi*"); |
| |
| for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) { |
| for (j = 0; j < 4; j++) { |
| if (id->matches[j].slot && |
| id->matches[j].slot == dmi_fields[i].field) { |
| sprintf(alias + strlen(alias), ":%s*", |
| dmi_fields[i].prefix); |
| dmi_ascii_filter(alias + strlen(alias), |
| id->matches[j].substr); |
| strcat(alias, "*"); |
| } |
| } |
| } |
| |
| strcat(alias, ":"); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("dmi", struct dmi_system_id, do_dmi_entry); |
| |
| static int do_platform_entry(const char *filename, |
| struct platform_device_id *id, char *alias) |
| { |
| sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("platform", struct platform_device_id, do_platform_entry); |
| |
| static int do_mdio_entry(const char *filename, |
| struct mdio_device_id *id, char *alias) |
| { |
| int i; |
| |
| alias += sprintf(alias, MDIO_MODULE_PREFIX); |
| |
| for (i = 0; i < 32; i++) { |
| if (!((id->phy_id_mask >> (31-i)) & 1)) |
| *(alias++) = '?'; |
| else if ((id->phy_id >> (31-i)) & 1) |
| *(alias++) = '1'; |
| else |
| *(alias++) = '0'; |
| } |
| |
| /* Terminate the string */ |
| *alias = 0; |
| |
| return 1; |
| } |
| ADD_TO_DEVTABLE("mdio", struct mdio_device_id, do_mdio_entry); |
| |
| /* Looks like: zorro:iN. */ |
| static int do_zorro_entry(const char *filename, struct zorro_device_id *id, |
| char *alias) |
| { |
| id->id = TO_NATIVE(id->id); |
| strcpy(alias, "zorro:"); |
| ADD(alias, "i", id->id != ZORRO_WILDCARD, id->id); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("zorro", struct zorro_device_id, do_zorro_entry); |
| |
| /* looks like: "pnp:dD" */ |
| static int do_isapnp_entry(const char *filename, |
| struct isapnp_device_id *id, char *alias) |
| { |
| sprintf(alias, "pnp:d%c%c%c%x%x%x%x*", |
| 'A' + ((id->vendor >> 2) & 0x3f) - 1, |
| 'A' + (((id->vendor & 3) << 3) | ((id->vendor >> 13) & 7)) - 1, |
| 'A' + ((id->vendor >> 8) & 0x1f) - 1, |
| (id->function >> 4) & 0x0f, id->function & 0x0f, |
| (id->function >> 12) & 0x0f, (id->function >> 8) & 0x0f); |
| return 1; |
| } |
| ADD_TO_DEVTABLE("isapnp", struct isapnp_device_id, do_isapnp_entry); |
| |
| /* |
| * Append a match expression for a single masked hex digit. |
| * outp points to a pointer to the character at which to append. |
| * *outp is updated on return to point just after the appended text, |
| * to facilitate further appending. |
| */ |
| static void append_nibble_mask(char **outp, |
| unsigned int nibble, unsigned int mask) |
| { |
| char *p = *outp; |
| unsigned int i; |
| |
| switch (mask) { |
| case 0: |
| *p++ = '?'; |
| break; |
| |
| case 0xf: |
| p += sprintf(p, "%X", nibble); |
| break; |
| |
| default: |
| /* |
| * Dumbly emit a match pattern for all possible matching |
| * digits. This could be improved in some cases using ranges, |
| * but it has the advantage of being trivially correct, and is |
| * often optimal. |
| */ |
| *p++ = '['; |
| for (i = 0; i < 0x10; i++) |
| if ((i & mask) == nibble) |
| p += sprintf(p, "%X", i); |
| *p++ = ']'; |
| } |
| |
| /* Ensure that the string remains NUL-terminated: */ |
| *p = '\0'; |
| |
| /* Advance the caller's end-of-string pointer: */ |
| *outp = p; |
| } |
| |
| /* |
| * looks like: "amba:dN" |
| * |
| * N is exactly 8 digits, where each is an upper-case hex digit, or |
| * a ? or [] pattern matching exactly one digit. |
| */ |
| static int do_amba_entry(const char *filename, |
| struct amba_id *id, char *alias) |
| { |
| unsigned int digit; |
| char *p = alias; |
| |
| if ((id->id & id->mask) != id->id) |
| fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: " |
| "id=0x%08X, mask=0x%08X. Please fix this driver.\n", |
| filename, id->id, id->mask); |
| |
| p += sprintf(alias, "amba:d"); |
| for (digit = 0; digit < 8; digit++) |
| append_nibble_mask(&p, |
| (id->id >> (4 * (7 - digit))) & 0xf, |
| (id->mask >> (4 * (7 - digit))) & 0xf); |
| |
| return 1; |
| } |
| ADD_TO_DEVTABLE("amba", struct amba_id, do_amba_entry); |
| |
| /* Does namelen bytes of name exactly match the symbol? */ |
| static bool sym_is(const char *name, unsigned namelen, const char *symbol) |
| { |
| if (namelen != strlen(symbol)) |
| return false; |
| |
| return memcmp(name, symbol, namelen) == 0; |
| } |
| |
| static void do_table(void *symval, unsigned long size, |
| unsigned long id_size, |
| const char *device_id, |
| void *function, |
| struct module *mod) |
| { |
| unsigned int i; |
| char alias[500]; |
| int (*do_entry)(const char *, void *entry, char *alias) = function; |
| |
| device_id_check(mod->name, device_id, size, id_size, symval); |
| /* Leave last one: it's the terminator. */ |
| size -= id_size; |
| |
| for (i = 0; i < size; i += id_size) { |
| if (do_entry(mod->name, symval+i, alias)) { |
| buf_printf(&mod->dev_table_buf, |
| "MODULE_ALIAS(\"%s\");\n", alias); |
| } |
| } |
| } |
| |
| /* Create MODULE_ALIAS() statements. |
| * At this time, we cannot write the actual output C source yet, |
| * so we write into the mod->dev_table_buf buffer. */ |
| void handle_moddevtable(struct module *mod, struct elf_info *info, |
| Elf_Sym *sym, const char *symname) |
| { |
| void *symval; |
| char *zeros = NULL; |
| const char *name; |
| unsigned int namelen; |
| |
| /* We're looking for a section relative symbol */ |
| if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections) |
| return; |
| |
| /* We're looking for an object */ |
| if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT) |
| return; |
| |
| /* All our symbols are of form <prefix>__mod_XXX_device_table. */ |
| name = strstr(symname, "__mod_"); |
| if (!name) |
| return; |
| name += strlen("__mod_"); |
| namelen = strlen(name); |
| if (namelen < strlen("_device_table")) |
| return; |
| if (strcmp(name + namelen - strlen("_device_table"), "_device_table")) |
| return; |
| namelen -= strlen("_device_table"); |
| |
| /* Handle all-NULL symbols allocated into .bss */ |
| if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) { |
| zeros = calloc(1, sym->st_size); |
| symval = zeros; |
| } else { |
| symval = (void *)info->hdr |
| + info->sechdrs[get_secindex(info, sym)].sh_offset |
| + sym->st_value; |
| } |
| |
| /* First handle the "special" cases */ |
| if (sym_is(name, namelen, "usb")) |
| do_usb_table(symval, sym->st_size, mod); |
| else if (sym_is(name, namelen, "pnp")) |
| do_pnp_device_entry(symval, sym->st_size, mod); |
| else if (sym_is(name, namelen, "pnp_card")) |
| do_pnp_card_entries(symval, sym->st_size, mod); |
| else { |
| struct devtable **p; |
| INIT_SECTION(__devtable); |
| |
| for (p = __start___devtable; p < __stop___devtable; p++) { |
| if (sym_is(name, namelen, (*p)->device_id)) { |
| do_table(symval, sym->st_size, (*p)->id_size, |
| (*p)->device_id, (*p)->function, mod); |
| break; |
| } |
| } |
| } |
| free(zeros); |
| } |
| |
| /* Now add out buffered information to the generated C source */ |
| void add_moddevtable(struct buffer *buf, struct module *mod) |
| { |
| buf_printf(buf, "\n"); |
| buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos); |
| free(mod->dev_table_buf.p); |
| } |