/* 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"#include "devicetable-offsets.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 == ELFCLASS32typedef Elf32_Addr kernel_ulong_t;#define BITS_PER_LONG 32#elsetypedef 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 !defined(__used)# if __GNUC__ == 3 && __GNUC_MINOR__ < 3# define __used __attribute__((__unused__))# else# define __used __attribute__((__used__))# endif#endif /* Define a variable f that holds the value of field f of struct devid * based at address m. */#define DEF_FIELD(m, devid, f) \ typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f))/* Define a variable f that holds the address of field f of struct devid * based at address m. Due to the way typeof works, for a field of type * T[N] the variable has type T(*)[N], _not_ T*. */#define DEF_FIELD_ADDR(m, devid, f) \ typeof(((struct devid *)0)->f) *f = ((m) + OFF_##devid##_##f) /* 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, \ (void *)NULL, \ (char *)NULL)), \ SIZE_##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, "*");} /** * 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) { 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:vNpNdNdcNdscNdpNicNiscNipNinN" */static void do_usb_entry(void *symval, 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]; DEF_FIELD(symval, usb_device_id, match_flags); DEF_FIELD(symval, usb_device_id, idVendor); DEF_FIELD(symval, usb_device_id, idProduct); DEF_FIELD(symval, usb_device_id, bcdDevice_lo); DEF_FIELD(symval, usb_device_id, bDeviceClass); DEF_FIELD(symval, usb_device_id, bDeviceSubClass); DEF_FIELD(symval, usb_device_id, bDeviceProtocol); DEF_FIELD(symval, usb_device_id, bInterfaceClass); DEF_FIELD(symval, usb_device_id, bInterfaceSubClass); DEF_FIELD(symval, usb_device_id, bInterfaceProtocol); DEF_FIELD(symval, usb_device_id, bInterfaceNumber); strcpy(alias, "usb:"); ADD(alias, "v", match_flags&USB_DEVICE_ID_MATCH_VENDOR, idVendor); ADD(alias, "p", match_flags&USB_DEVICE_ID_MATCH_PRODUCT, 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(bcdDevice_lo) * 2 - 1)) strcat(alias, "*"); ADD(alias, "dc", match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS, bDeviceClass); ADD(alias, "dsc", match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS, bDeviceSubClass); ADD(alias, "dp", match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL, bDeviceProtocol); ADD(alias, "ic", match_flags&USB_DEVICE_ID_MATCH_INT_CLASS, bInterfaceClass); ADD(alias, "isc", match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS, bInterfaceSubClass); ADD(alias, "ip", match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL, bInterfaceProtocol); ADD(alias, "in", match_flags&USB_DEVICE_ID_MATCH_INT_NUMBER, bInterfaceNumber); 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(void *symval, struct module *mod){ unsigned int devlo, devhi; unsigned char chi, clo, max; int ndigits; DEF_FIELD(symval, usb_device_id, match_flags); DEF_FIELD(symval, usb_device_id, idVendor); DEF_FIELD(symval, usb_device_id, idProduct); DEF_FIELD(symval, usb_device_id, bcdDevice_lo); DEF_FIELD(symval, usb_device_id, bcdDevice_hi); DEF_FIELD(symval, usb_device_id, bDeviceClass); DEF_FIELD(symval, usb_device_id, bInterfaceClass); devlo = match_flags & USB_DEVICE_ID_MATCH_DEV_LO ? bcdDevice_lo : 0x0U; devhi = match_flags & USB_DEVICE_ID_MATCH_DEV_HI ? 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(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 (!(idVendor | idProduct | bDeviceClass | bInterfaceClass)) return; /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */ for (ndigits = sizeof(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(symval, devlo, ndigits, clo, chi, max, mod); break; } if (clo > 0x0) do_usb_entry(symval, incbcd(&devlo, 1, max, sizeof(bcdDevice_lo) * 2), ndigits, clo, max, max, mod); if (chi < max) do_usb_entry(symval, incbcd(&devhi, -1, max, sizeof(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 = SIZE_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, void *symval, char *alias){ DEF_FIELD(symval, hid_device_id, bus); DEF_FIELD(symval, hid_device_id, group); DEF_FIELD(symval, hid_device_id, vendor); DEF_FIELD(symval, hid_device_id, product); sprintf(alias, "hid:"); ADD(alias, "b", bus != HID_BUS_ANY, bus); ADD(alias, "g", group != HID_GROUP_ANY, group); ADD(alias, "v", vendor != HID_ANY_ID, vendor); ADD(alias, "p", product != HID_ANY_ID, product); return 1;}ADD_TO_DEVTABLE("hid", hid_device_id, do_hid_entry); /* Looks like: ieee1394:venNmoNspNverN */static int do_ieee1394_entry(const char *filename, void *symval, char *alias){ DEF_FIELD(symval, ieee1394_device_id, match_flags); DEF_FIELD(symval, ieee1394_device_id, vendor_id); DEF_FIELD(symval, ieee1394_device_id, model_id); DEF_FIELD(symval, ieee1394_device_id, specifier_id); DEF_FIELD(symval, ieee1394_device_id, version); strcpy(alias, "ieee1394:"); ADD(alias, "ven", match_flags & IEEE1394_MATCH_VENDOR_ID, vendor_id); ADD(alias, "mo", match_flags & IEEE1394_MATCH_MODEL_ID, model_id); ADD(alias, "sp", match_flags & IEEE1394_MATCH_SPECIFIER_ID, specifier_id); ADD(alias, "ver", match_flags & IEEE1394_MATCH_VERSION, version); add_wildcard(alias); return 1;}ADD_TO_DEVTABLE("ieee1394", ieee1394_device_id, do_ieee1394_entry); /* Looks like: pci:vNdNsvNsdNbcNscNiN. */static int do_pci_entry(const char *filename, void *symval, char *alias){ /* Class field can be divided into these three. */ unsigned char baseclass, subclass, interface, baseclass_mask, subclass_mask, interface_mask; DEF_FIELD(symval, pci_device_id, vendor); DEF_FIELD(symval, pci_device_id, device); DEF_FIELD(symval, pci_device_id, subvendor); DEF_FIELD(symval, pci_device_id, subdevice); DEF_FIELD(symval, pci_device_id, class); DEF_FIELD(symval, pci_device_id, class_mask); strcpy(alias, "pci:"); ADD(alias, "v", vendor != PCI_ANY_ID, vendor); ADD(alias, "d", device != PCI_ANY_ID, device); ADD(alias, "sv", subvendor != PCI_ANY_ID, subvendor); ADD(alias, "sd", subdevice != PCI_ANY_ID, subdevice); baseclass = (class) >> 16; baseclass_mask = (class_mask) >> 16; subclass = (class) >> 8; subclass_mask = (class_mask) >> 8; interface = class; interface_mask = 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, 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", pci_device_id, do_pci_entry); /* looks like: "ccw:tNmNdtNdmN" */static int do_ccw_entry(const char *filename, void *symval, char *alias){ DEF_FIELD(symval, ccw_device_id, match_flags); DEF_FIELD(symval, ccw_device_id, cu_type); DEF_FIELD(symval, ccw_device_id, cu_model); DEF_FIELD(symval, ccw_device_id, dev_type); DEF_FIELD(symval, ccw_device_id, dev_model); strcpy(alias, "ccw:"); ADD(alias, "t", match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE, cu_type); ADD(alias, "m", match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL, cu_model); ADD(alias, "dt", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE, dev_type); ADD(alias, "dm", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL, dev_model); add_wildcard(alias); return 1;}ADD_TO_DEVTABLE("ccw", ccw_device_id, do_ccw_entry); /* looks like: "ap:tN" */static int do_ap_entry(const char *filename, void *symval, char *alias){ DEF_FIELD(symval, ap_device_id, dev_type); sprintf(alias, "ap:t%02X*", dev_type); return 1;}ADD_TO_DEVTABLE("ap", ap_device_id, do_ap_entry); /* looks like: "css:tN" */static int do_css_entry(const char *filename, void *symval, char *alias){ DEF_FIELD(symval, css_device_id, type); sprintf(alias, "css:t%01X", type); return 1;}ADD_TO_DEVTABLE("css", css_device_id, do_css_entry); /* Looks like: "serio:tyNprNidNexN" */static int do_serio_entry(const char *filename, void *symval, char *alias){ DEF_FIELD(symval, serio_device_id, type); DEF_FIELD(symval, serio_device_id, proto); DEF_FIELD(symval, serio_device_id, id); DEF_FIELD(symval, serio_device_id, extra);Lines 1–500 of 1270. 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/* 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" #include "devicetable-offsets.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 !defined(__used) # if __GNUC__ == 3 && __GNUC_MINOR__ < 3 # define __used __attribute__((__unused__)) # else # define __used __attribute__((__used__)) # endif #endif /* Define a variable f that holds the value of field f of struct devid * based at address m. */ #define DEF_FIELD(m, devid, f) \ typeof(((struct devid *)0)->f) f = TO_NATIVE(*(typeof(f) *)((m) + OFF_##devid##_##f)) /* Define a variable f that holds the address of field f of struct devid * based at address m. Due to the way typeof works, for a field of type * T[N] the variable has type T(*)[N], _not_ T*. */ #define DEF_FIELD_ADDR(m, devid, f) \ typeof(((struct devid *)0)->f) *f = ((m) + OFF_##devid##_##f) /* 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, \ (void *)NULL, \ (char *)NULL)), \ SIZE_##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, "*"); } /** * 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) { 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:vNpNdNdcNdscNdpNicNiscNipNinN" */ static void do_usb_entry(void *symval, 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]; DEF_FIELD(symval, usb_device_id, match_flags); DEF_FIELD(symval, usb_device_id, idVendor); DEF_FIELD(symval, usb_device_id, idProduct); DEF_FIELD(symval, usb_device_id, bcdDevice_lo); DEF_FIELD(symval, usb_device_id, bDeviceClass); DEF_FIELD(symval, usb_device_id, bDeviceSubClass); DEF_FIELD(symval, usb_device_id, bDeviceProtocol); DEF_FIELD(symval, usb_device_id, bInterfaceClass); DEF_FIELD(symval, usb_device_id, bInterfaceSubClass); DEF_FIELD(symval, usb_device_id, bInterfaceProtocol); DEF_FIELD(symval, usb_device_id, bInterfaceNumber); strcpy(alias, "usb:"); ADD(alias, "v", match_flags&USB_DEVICE_ID_MATCH_VENDOR, idVendor); ADD(alias, "p", match_flags&USB_DEVICE_ID_MATCH_PRODUCT, 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(bcdDevice_lo) * 2 - 1)) strcat(alias, "*"); ADD(alias, "dc", match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS, bDeviceClass); ADD(alias, "dsc", match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS, bDeviceSubClass); ADD(alias, "dp", match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL, bDeviceProtocol); ADD(alias, "ic", match_flags&USB_DEVICE_ID_MATCH_INT_CLASS, bInterfaceClass); ADD(alias, "isc", match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS, bInterfaceSubClass); ADD(alias, "ip", match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL, bInterfaceProtocol); ADD(alias, "in", match_flags&USB_DEVICE_ID_MATCH_INT_NUMBER, bInterfaceNumber); 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(void *symval, struct module *mod) { unsigned int devlo, devhi; unsigned char chi, clo, max; int ndigits; DEF_FIELD(symval, usb_device_id, match_flags); DEF_FIELD(symval, usb_device_id, idVendor); DEF_FIELD(symval, usb_device_id, idProduct); DEF_FIELD(symval, usb_device_id, bcdDevice_lo); DEF_FIELD(symval, usb_device_id, bcdDevice_hi); DEF_FIELD(symval, usb_device_id, bDeviceClass); DEF_FIELD(symval, usb_device_id, bInterfaceClass); devlo = match_flags & USB_DEVICE_ID_MATCH_DEV_LO ? bcdDevice_lo : 0x0U; devhi = match_flags & USB_DEVICE_ID_MATCH_DEV_HI ? 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(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 (!(idVendor | idProduct | bDeviceClass | bInterfaceClass)) return; /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */ for (ndigits = sizeof(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(symval, devlo, ndigits, clo, chi, max, mod); break; } if (clo > 0x0) do_usb_entry(symval, incbcd(&devlo, 1, max, sizeof(bcdDevice_lo) * 2), ndigits, clo, max, max, mod); if (chi < max) do_usb_entry(symval, incbcd(&devhi, -1, max, sizeof(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 = SIZE_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, void *symval, char *alias) { DEF_FIELD(symval, hid_device_id, bus); DEF_FIELD(symval, hid_device_id, group); DEF_FIELD(symval, hid_device_id, vendor); DEF_FIELD(symval, hid_device_id, product); sprintf(alias, "hid:"); ADD(alias, "b", bus != HID_BUS_ANY, bus); ADD(alias, "g", group != HID_GROUP_ANY, group); ADD(alias, "v", vendor != HID_ANY_ID, vendor); ADD(alias, "p", product != HID_ANY_ID, product); return 1; } ADD_TO_DEVTABLE("hid", hid_device_id, do_hid_entry); /* Looks like: ieee1394:venNmoNspNverN */ static int do_ieee1394_entry(const char *filename, void *symval, char *alias) { DEF_FIELD(symval, ieee1394_device_id, match_flags); DEF_FIELD(symval, ieee1394_device_id, vendor_id); DEF_FIELD(symval, ieee1394_device_id, model_id); DEF_FIELD(symval, ieee1394_device_id, specifier_id); DEF_FIELD(symval, ieee1394_device_id, version); strcpy(alias, "ieee1394:"); ADD(alias, "ven", match_flags & IEEE1394_MATCH_VENDOR_ID, vendor_id); ADD(alias, "mo", match_flags & IEEE1394_MATCH_MODEL_ID, model_id); ADD(alias, "sp", match_flags & IEEE1394_MATCH_SPECIFIER_ID, specifier_id); ADD(alias, "ver", match_flags & IEEE1394_MATCH_VERSION, version); add_wildcard(alias); return 1; } ADD_TO_DEVTABLE("ieee1394", ieee1394_device_id, do_ieee1394_entry); /* Looks like: pci:vNdNsvNsdNbcNscNiN. */ static int do_pci_entry(const char *filename, void *symval, char *alias) { /* Class field can be divided into these three. */ unsigned char baseclass, subclass, interface, baseclass_mask, subclass_mask, interface_mask; DEF_FIELD(symval, pci_device_id, vendor); DEF_FIELD(symval, pci_device_id, device); DEF_FIELD(symval, pci_device_id, subvendor); DEF_FIELD(symval, pci_device_id, subdevice); DEF_FIELD(symval, pci_device_id, class); DEF_FIELD(symval, pci_device_id, class_mask); strcpy(alias, "pci:"); ADD(alias, "v", vendor != PCI_ANY_ID, vendor); ADD(alias, "d", device != PCI_ANY_ID, device); ADD(alias, "sv", subvendor != PCI_ANY_ID, subvendor); ADD(alias, "sd", subdevice != PCI_ANY_ID, subdevice); baseclass = (class) >> 16; baseclass_mask = (class_mask) >> 16; subclass = (class) >> 8; subclass_mask = (class_mask) >> 8; interface = class; interface_mask = 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, 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", pci_device_id, do_pci_entry); /* looks like: "ccw:tNmNdtNdmN" */ static int do_ccw_entry(const char *filename, void *symval, char *alias) { DEF_FIELD(symval, ccw_device_id, match_flags); DEF_FIELD(symval, ccw_device_id, cu_type); DEF_FIELD(symval, ccw_device_id, cu_model); DEF_FIELD(symval, ccw_device_id, dev_type); DEF_FIELD(symval, ccw_device_id, dev_model); strcpy(alias, "ccw:"); ADD(alias, "t", match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE, cu_type); ADD(alias, "m", match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL, cu_model); ADD(alias, "dt", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE, dev_type); ADD(alias, "dm", match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL, dev_model); add_wildcard(alias); return 1; } ADD_TO_DEVTABLE("ccw", ccw_device_id, do_ccw_entry); /* looks like: "ap:tN" */ static int do_ap_entry(const char *filename, void *symval, char *alias) { DEF_FIELD(symval, ap_device_id, dev_type); sprintf(alias, "ap:t%02X*", dev_type); return 1; } ADD_TO_DEVTABLE("ap", ap_device_id, do_ap_entry); /* looks like: "css:tN" */ static int do_css_entry(const char *filename, void *symval, char *alias) { DEF_FIELD(symval, css_device_id, type); sprintf(alias, "css:t%01X", type); return 1; } ADD_TO_DEVTABLE("css", css_device_id, do_css_entry); /* Looks like: "serio:tyNprNidNexN" */ static int do_serio_entry(const char *filename, void *symval, char *alias) { DEF_FIELD(symval, serio_device_id, type); DEF_FIELD(symval, serio_device_id, proto); DEF_FIELD(symval, serio_device_id, id); DEF_FIELD(symval, serio_device_id, extra);