dmi_scan.c revision 911e1c9b05a8e3559a7aa89083930700a0b9e7ee
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/dmi.h> 63ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch#include <linux/efi.h> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bootmem.h> 8f2d3efedbecc04dc348d723e4c90b46731b3bb48Andi Kleen#include <asm/dmi.h> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10cb5dd7c104c64d7ba8ff4dd3eec3d9b92c378937Paul Jackson/* 11cb5dd7c104c64d7ba8ff4dd3eec3d9b92c378937Paul Jackson * DMI stands for "Desktop Management Interface". It is part 12cb5dd7c104c64d7ba8ff4dd3eec3d9b92c378937Paul Jackson * of and an antecedent to, SMBIOS, which stands for System 13cb5dd7c104c64d7ba8ff4dd3eec3d9b92c378937Paul Jackson * Management BIOS. See further: http://www.dmtf.org/standards 14cb5dd7c104c64d7ba8ff4dd3eec3d9b92c378937Paul Jackson */ 1579da4721117fcf188b4b007b775738a530f574daParag Warudkarstatic char dmi_empty_string[] = " "; 1679da4721117fcf188b4b007b775738a530f574daParag Warudkar 179a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar/* 189a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar * Catch too early calls to dmi_check_system(): 199a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar */ 209a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnarstatic int dmi_initialized; 219a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar 22f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvarestatic const char * __init dmi_string_nosave(const struct dmi_header *dm, u8 s) 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 241855256c497ecfefc730df6032243f26855ce52cJeff Garzik const u8 *bp = ((u8 *) dm) + dm->length; 251249c5138f573890eae0c01f13d627094edcd55cAndrey Panin 26c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin if (s) { 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s--; 28c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin while (s > 0 && *bp) { 29c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin bp += strlen(bp) + 1; 30c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin s--; 31c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin } 32c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin 33c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin if (*bp != 0) { 3479da4721117fcf188b4b007b775738a530f574daParag Warudkar size_t len = strlen(bp)+1; 3579da4721117fcf188b4b007b775738a530f574daParag Warudkar size_t cmp_len = len > 8 ? 8 : len; 3679da4721117fcf188b4b007b775738a530f574daParag Warudkar 3779da4721117fcf188b4b007b775738a530f574daParag Warudkar if (!memcmp(bp, dmi_empty_string, cmp_len)) 3879da4721117fcf188b4b007b775738a530f574daParag Warudkar return dmi_empty_string; 39f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare return bp; 40c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin } 414f705ae3e94ffaafe8d35f71ff4d5c499bb06814Bjorn Helgaas } 42c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin 43f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare return ""; 44f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare} 45f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 46f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvarestatic char * __init dmi_string(const struct dmi_header *dm, u8 s) 47f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare{ 48f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare const char *bp = dmi_string_nosave(dm, s); 49f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare char *str; 50f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare size_t len; 51f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 52f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare if (bp == dmi_empty_string) 53f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare return dmi_empty_string; 54f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 55f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare len = strlen(bp) + 1; 56f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare str = dmi_alloc(len); 57f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare if (str != NULL) 58f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare strcpy(str, bp); 59f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare else 60f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare printk(KERN_ERR "dmi_string: cannot allocate %Zu bytes.\n", len); 61f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 62c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin return str; 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We have to be cautious here. We have seen BIOSes with DMI pointers 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * pointing to completely the wrong place for example 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 697fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvarestatic void dmi_table(u8 *buf, int len, int num, 70e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare void (*decode)(const struct dmi_header *, void *), 71e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare void *private_data) 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 737fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare u8 *data = buf; 741249c5138f573890eae0c01f13d627094edcd55cAndrey Panin int i = 0; 754f705ae3e94ffaafe8d35f71ff4d5c499bb06814Bjorn Helgaas 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 774f705ae3e94ffaafe8d35f71ff4d5c499bb06814Bjorn Helgaas * Stop when we see all the items the table claimed to have 784f705ae3e94ffaafe8d35f71ff4d5c499bb06814Bjorn Helgaas * OR we run off the end of the table (also happens) 794f705ae3e94ffaafe8d35f71ff4d5c499bb06814Bjorn Helgaas */ 801249c5138f573890eae0c01f13d627094edcd55cAndrey Panin while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) { 811855256c497ecfefc730df6032243f26855ce52cJeff Garzik const struct dmi_header *dm = (const struct dmi_header *)data; 821855256c497ecfefc730df6032243f26855ce52cJeff Garzik 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 848638545c3668231675dcf8f46afa7ed5930a6b02Alan Cox * We want to know the total length (formatted area and 858638545c3668231675dcf8f46afa7ed5930a6b02Alan Cox * strings) before decoding to make sure we won't run off the 868638545c3668231675dcf8f46afa7ed5930a6b02Alan Cox * table in dmi_decode or dmi_string 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 881249c5138f573890eae0c01f13d627094edcd55cAndrey Panin data += dm->length; 891249c5138f573890eae0c01f13d627094edcd55cAndrey Panin while ((data - buf < len - 1) && (data[0] || data[1])) 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data++; 911249c5138f573890eae0c01f13d627094edcd55cAndrey Panin if (data - buf < len - 1) 92e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare decode(dm, private_data); 931249c5138f573890eae0c01f13d627094edcd55cAndrey Panin data += 2; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i++; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 967fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare} 977fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 987fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvarestatic u32 dmi_base; 997fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvarestatic u16 dmi_len; 1007fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvarestatic u16 dmi_num; 1017fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 102e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvarestatic int __init dmi_walk_early(void (*decode)(const struct dmi_header *, 103e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare void *)) 1047fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare{ 1057fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare u8 *buf; 1067fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 1077fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare buf = dmi_ioremap(dmi_base, dmi_len); 1087fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare if (buf == NULL) 1097fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare return -1; 1107fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 111e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare dmi_table(buf, dmi_len, dmi_num, decode, NULL); 1127fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 1137fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare dmi_iounmap(buf, dmi_len); 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1171855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic int __init dmi_checksum(const u8 *buf) 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1191249c5138f573890eae0c01f13d627094edcd55cAndrey Panin u8 sum = 0; 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int a; 1214f705ae3e94ffaafe8d35f71ff4d5c499bb06814Bjorn Helgaas 1221249c5138f573890eae0c01f13d627094edcd55cAndrey Panin for (a = 0; a < 15; a++) 1231249c5138f573890eae0c01f13d627094edcd55cAndrey Panin sum += buf[a]; 1241249c5138f573890eae0c01f13d627094edcd55cAndrey Panin 1251249c5138f573890eae0c01f13d627094edcd55cAndrey Panin return sum == 0; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *dmi_ident[DMI_STRING_MAX]; 129ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Paninstatic LIST_HEAD(dmi_devices); 1304f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poetteringint dmi_available; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Save a DMI string 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1351855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic void __init dmi_save_ident(const struct dmi_header *dm, int slot, int string) 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1371855256c497ecfefc730df6032243f26855ce52cJeff Garzik const char *d = (const char*) dm; 1381855256c497ecfefc730df6032243f26855ce52cJeff Garzik char *p; 1391249c5138f573890eae0c01f13d627094edcd55cAndrey Panin 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmi_ident[slot]) 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1421249c5138f573890eae0c01f13d627094edcd55cAndrey Panin 143c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin p = dmi_string(dm, d[string]); 144c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin if (p == NULL) 145c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin return; 146c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin 147c3c7120d552989be94c9137989be5abb6da8954fAndrey Panin dmi_ident[slot] = p; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic void __init dmi_save_uuid(const struct dmi_header *dm, int slot, int index) 1514f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering{ 1521855256c497ecfefc730df6032243f26855ce52cJeff Garzik const u8 *d = (u8*) dm + index; 1534f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering char *s; 1544f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering int is_ff = 1, is_00 = 1, i; 1554f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1564f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if (dmi_ident[slot]) 1574f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering return; 1584f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1594f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering for (i = 0; i < 16 && (is_ff || is_00); i++) { 1604f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if(d[i] != 0x00) is_ff = 0; 1614f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if(d[i] != 0xFF) is_00 = 0; 1624f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering } 1634f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1644f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if (is_ff || is_00) 1654f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering return; 1664f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1674f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering s = dmi_alloc(16*2+4+1); 1684f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if (!s) 1694f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering return; 1704f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 171bc058f65e8c7d83c139692e1c26513d3187dd744Joe Perches sprintf(s, "%pUB", d); 1724f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1734f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_ident[slot] = s; 1744f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering} 1754f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1761855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic void __init dmi_save_type(const struct dmi_header *dm, int slot, int index) 1774f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering{ 1781855256c497ecfefc730df6032243f26855ce52cJeff Garzik const u8 *d = (u8*) dm + index; 1794f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering char *s; 1804f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1814f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if (dmi_ident[slot]) 1824f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering return; 1834f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1844f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering s = dmi_alloc(4); 1854f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if (!s) 1864f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering return; 1874f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 1884f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering sprintf(s, "%u", *d & 0x7F); 1894f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_ident[slot] = s; 1904f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering} 1914f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering 192f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvarestatic void __init dmi_save_one_device(int type, const char *name) 193f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare{ 194f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare struct dmi_device *dev; 195f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 196f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare /* No duplicate device */ 197f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare if (dmi_find_device(type, name, NULL)) 198f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare return; 199f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 200f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare dev = dmi_alloc(sizeof(*dev) + strlen(name) + 1); 201f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare if (!dev) { 202f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare printk(KERN_ERR "dmi_save_one_device: out of memory.\n"); 203f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare return; 204f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare } 205f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 206f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare dev->type = type; 207f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare strcpy((char *)(dev + 1), name); 208f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare dev->name = (char *)(dev + 1); 209f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare dev->device_data = NULL; 210f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare list_add(&dev->list, &dmi_devices); 211f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare} 212f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare 2131855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic void __init dmi_save_devices(const struct dmi_header *dm) 214ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin{ 215ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin int i, count = (dm->length - sizeof(struct dmi_header)) / 2; 216ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 217ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin for (i = 0; i < count; i++) { 2181855256c497ecfefc730df6032243f26855ce52cJeff Garzik const char *d = (char *)(dm + 1) + (i * 2); 219ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 220ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin /* Skip disabled device */ 221ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin if ((*d & 0x80) == 0) 222ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin continue; 223ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 224f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d + 1))); 2252e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous } 2262e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous} 2272e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous 2281855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic void __init dmi_save_oem_strings_devices(const struct dmi_header *dm) 2292e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous{ 2302e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous int i, count = *(u8 *)(dm + 1); 2312e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous struct dmi_device *dev; 2322e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous 2332e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous for (i = 1; i <= count; i++) { 23479da4721117fcf188b4b007b775738a530f574daParag Warudkar char *devname = dmi_string(dm, i); 23579da4721117fcf188b4b007b775738a530f574daParag Warudkar 23643fe105a5c91b2f00ea7f900ed307fe980410612Jean Delvare if (devname == dmi_empty_string) 23779da4721117fcf188b4b007b775738a530f574daParag Warudkar continue; 23879da4721117fcf188b4b007b775738a530f574daParag Warudkar 2392e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous dev = dmi_alloc(sizeof(*dev)); 2402e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous if (!dev) { 2412e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous printk(KERN_ERR 2422e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous "dmi_save_oem_strings_devices: out of memory.\n"); 2432e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous break; 2442e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous } 2452e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous 2462e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous dev->type = DMI_DEV_TYPE_OEM_STRING; 24779da4721117fcf188b4b007b775738a530f574daParag Warudkar dev->name = devname; 2482e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous dev->device_data = NULL; 249ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 250ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin list_add(&dev->list, &dmi_devices); 251ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin } 252ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin} 253ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 2541855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic void __init dmi_save_ipmi_device(const struct dmi_header *dm) 255ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin{ 256ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin struct dmi_device *dev; 257ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin void * data; 258ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 259e99286744599a66195de4cd975d7ef4d643c2789Andi Kleen data = dmi_alloc(dm->length); 260ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin if (data == NULL) { 261ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n"); 262ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin return; 263ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin } 264ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 265ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin memcpy(data, dm, dm->length); 266ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 267e99286744599a66195de4cd975d7ef4d643c2789Andi Kleen dev = dmi_alloc(sizeof(*dev)); 268ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin if (!dev) { 269ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n"); 270ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin return; 271ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin } 272ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 273ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin dev->type = DMI_DEV_TYPE_IPMI; 274ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin dev->name = "IPMI controller"; 275ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin dev->device_data = data; 276ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 277abd24df828f1a72971db29d1b74fefae104ea9e2Carol Hebert list_add_tail(&dev->list, &dmi_devices); 278ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin} 279ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 280911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra Kstatic void __init dmi_save_dev_onboard(int instance, int segment, int bus, 281911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K int devfn, const char *name) 282911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K{ 283911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K struct dmi_dev_onboard *onboard_dev; 284911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K 285911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev = dmi_alloc(sizeof(*onboard_dev) + strlen(name) + 1); 286911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K if (!onboard_dev) { 287911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K printk(KERN_ERR "dmi_save_dev_onboard: out of memory.\n"); 288911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K return; 289911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K } 290911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev->instance = instance; 291911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev->segment = segment; 292911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev->bus = bus; 293911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev->devfn = devfn; 294911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K 295911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K strcpy((char *)&onboard_dev[1], name); 296911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev->dev.type = DMI_DEV_TYPE_DEV_ONBOARD; 297911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev->dev.name = (char *)&onboard_dev[1]; 298911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K onboard_dev->dev.device_data = onboard_dev; 299911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K 300911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K list_add(&onboard_dev->dev.list, &dmi_devices); 301911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K} 302911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K 303b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeckstatic void __init dmi_save_extended_devices(const struct dmi_header *dm) 304b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck{ 305b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck const u8 *d = (u8*) dm + 5; 306b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck 307b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck /* Skip disabled device */ 308b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck if ((*d & 0x80) == 0) 309b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck return; 310b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck 311911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K dmi_save_dev_onboard(*(d+1), *(u16 *)(d+2), *(d+4), *(d+5), 312911e1c9b05a8e3559a7aa89083930700a0b9e7eeNarendra K dmi_string_nosave(dm, *(d-1))); 313f3069ae9d76901d021362bb63d9ad6c5900dfc76Jean Delvare dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d - 1))); 314b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck} 315b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Process a DMI table entry. Right now all we care about are the BIOS 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and machine entries. For 2.5 we should pull the smbus controller info 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * out of here. 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 321e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvarestatic void __init dmi_decode(const struct dmi_header *dm, void *dummy) 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3231249c5138f573890eae0c01f13d627094edcd55cAndrey Panin switch(dm->type) { 324ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin case 0: /* BIOS Information */ 3251249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_BIOS_VENDOR, 4); 3261249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_BIOS_VERSION, 5); 3271249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_BIOS_DATE, 8); 3281249c5138f573890eae0c01f13d627094edcd55cAndrey Panin break; 329ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin case 1: /* System Information */ 3301249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_SYS_VENDOR, 4); 3311249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_PRODUCT_NAME, 5); 3321249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6); 3331249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7); 3344f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_uuid(dm, DMI_PRODUCT_UUID, 8); 3351249c5138f573890eae0c01f13d627094edcd55cAndrey Panin break; 336ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin case 2: /* Base Board Information */ 3371249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_BOARD_VENDOR, 4); 3381249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_BOARD_NAME, 5); 3391249c5138f573890eae0c01f13d627094edcd55cAndrey Panin dmi_save_ident(dm, DMI_BOARD_VERSION, 6); 3404f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_ident(dm, DMI_BOARD_SERIAL, 7); 3414f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_ident(dm, DMI_BOARD_ASSET_TAG, 8); 3424f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering break; 3434f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering case 3: /* Chassis Information */ 3444f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_ident(dm, DMI_CHASSIS_VENDOR, 4); 3454f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_type(dm, DMI_CHASSIS_TYPE, 5); 3464f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_ident(dm, DMI_CHASSIS_VERSION, 6); 3474f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_ident(dm, DMI_CHASSIS_SERIAL, 7); 3484f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_save_ident(dm, DMI_CHASSIS_ASSET_TAG, 8); 3491249c5138f573890eae0c01f13d627094edcd55cAndrey Panin break; 350ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin case 10: /* Onboard Devices Information */ 351ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin dmi_save_devices(dm); 352ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin break; 3532e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous case 11: /* OEM Strings */ 3542e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous dmi_save_oem_strings_devices(dm); 3552e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9Shem Multinymous break; 356ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin case 38: /* IPMI Device Information */ 357ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin dmi_save_ipmi_device(dm); 358b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck break; 359b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck case 41: /* Onboard Devices Extended Information */ 360b4bd7d59451960d4e1d994c01581b31b08fe3720Wim Van Sebroeck dmi_save_extended_devices(dm); 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3641855256c497ecfefc730df6032243f26855ce52cJeff Garzikstatic int __init dmi_present(const char __iomem *p) 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 36661e032fa2f659fada02ede5087b46963a1c7de34Andrey Panin u8 buf[15]; 3671855256c497ecfefc730df6032243f26855ce52cJeff Garzik 3683ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch memcpy_fromio(buf, p, 15); 3693ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) { 3707fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare dmi_num = (buf[13] << 8) | buf[12]; 3717fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare dmi_len = (buf[7] << 8) | buf[6]; 3727fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare dmi_base = (buf[11] << 24) | (buf[10] << 16) | 3733ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch (buf[9] << 8) | buf[8]; 37461e032fa2f659fada02ede5087b46963a1c7de34Andrey Panin 3753ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch /* 3763ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch * DMI version 0.0 means that the real version is taken from 3773ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch * the SMBIOS version, which we don't know at this point. 3783ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch */ 3793ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch if (buf[14] != 0) 3803ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch printk(KERN_INFO "DMI %d.%d present.\n", 3813ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch buf[14] >> 4, buf[14] & 0xF); 3823ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch else 3833ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch printk(KERN_INFO "DMI present.\n"); 3847fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare if (dmi_walk_early(dmi_decode) == 0) 3853ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch return 0; 3863ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch } 3873ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch return 1; 3883ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch} 38961e032fa2f659fada02ede5087b46963a1c7de34Andrey Panin 3903ed3bce846abc7ef460104b461cac793e41afe5eMatt Domschvoid __init dmi_scan_machine(void) 3913ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch{ 3923ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch char __iomem *p, *q; 3933ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch int rc; 3943ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch 3953ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch if (efi_enabled) { 396b2c99e3c70d77fb194df5aa1642030080d28ea48Bjorn Helgaas if (efi.smbios == EFI_INVALID_TABLE_ADDR) 3979a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar goto error; 3983ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch 3994f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering /* This is called as a core_initcall() because it isn't 4004f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering * needed during early boot. This also means we can 4014f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering * iounmap the space when we're done with it. 4024f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering */ 403b2c99e3c70d77fb194df5aa1642030080d28ea48Bjorn Helgaas p = dmi_ioremap(efi.smbios, 32); 4043ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch if (p == NULL) 4059a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar goto error; 4063ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch 4073ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch rc = dmi_present(p + 0x10); /* offset of _DMI_ string */ 40823dd842c0033dbb05248c42929c3c526c55386deTolentino, Matthew E dmi_iounmap(p, 32); 4094f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if (!rc) { 4104f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_available = 1; 4119a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar goto out; 4124f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering } 4133ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch } 4143ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch else { 4153ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch /* 4163ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch * no iounmap() for that ioremap(); it would be a no-op, but 4173ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch * it's so early in setup that sucker gets confused into doing 4183ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch * what it shouldn't if we actually call it. 4193ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch */ 4203ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch p = dmi_ioremap(0xF0000, 0x10000); 4213ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch if (p == NULL) 4229a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar goto error; 4233ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch 4243ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch for (q = p; q < p + 0x10000; q += 16) { 4253ed3bce846abc7ef460104b461cac793e41afe5eMatt Domsch rc = dmi_present(q); 4264f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering if (!rc) { 4274f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering dmi_available = 1; 4280d64484f7ea12ca04211b497e94634c3d27cf3fbIngo Molnar dmi_iounmap(p, 0x10000); 4299a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar goto out; 4304f5c791a850e5305a5b1b48d0e4b4de248dc96f9Lennart Poettering } 43161e032fa2f659fada02ede5087b46963a1c7de34Andrey Panin } 4323212bff370c2f22e4987c6679ba485654cefb178Yinghai Lu dmi_iounmap(p, 0x10000); 43361e032fa2f659fada02ede5087b46963a1c7de34Andrey Panin } 4349a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar error: 4359a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar printk(KERN_INFO "DMI not present or invalid.\n"); 4369a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar out: 4379a22b6e76ba75fa0f3963cdec7829156d00a7173Ingo Molnar dmi_initialized = 1; 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 441d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * dmi_matches - check if dmi_system_id structure matches system DMI data 442d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * @dmi: pointer to the dmi_system_id structure to check 443d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki */ 444d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysockistatic bool dmi_matches(const struct dmi_system_id *dmi) 445d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki{ 446d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki int i; 447d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki 448d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki WARN(!dmi_initialized, KERN_ERR "dmi check: not initialized yet.\n"); 449d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki 450d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki for (i = 0; i < ARRAY_SIZE(dmi->matches); i++) { 451d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki int s = dmi->matches[i].slot; 452d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki if (s == DMI_NONE) 45375757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov break; 454d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki if (dmi_ident[s] 455d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki && strstr(dmi_ident[s], dmi->matches[i].substr)) 456d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki continue; 457d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki /* No match */ 458d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki return false; 459d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki } 460d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki return true; 461d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki} 462d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki 463d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki/** 46475757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov * dmi_is_end_of_table - check for end-of-table marker 46575757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov * @dmi: pointer to the dmi_system_id structure to check 46675757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov */ 46775757507e014fa074d25d2883c4ab604999584bdDmitry Torokhovstatic bool dmi_is_end_of_table(const struct dmi_system_id *dmi) 46875757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov{ 46975757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov return dmi->matches[0].slot == DMI_NONE; 47075757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov} 47175757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov 47275757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov/** 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dmi_check_system - check system DMI data 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @list: array of dmi_system_id structures to match against 475b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * All non-null elements of the list must match 476b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * their slot's (field index's) data (i.e., each 477b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * list string must be a substring of the specified 478b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * DMI slot's string data) to be considered a 479b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * successful match. 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Walk the blacklist table running matching functions until someone 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns non zero or we hit the end. Callback function is called for 483b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * each successful match. Returns the number of matches. 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4851855256c497ecfefc730df6032243f26855ce52cJeff Garzikint dmi_check_system(const struct dmi_system_id *list) 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 487d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki int count = 0; 488d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki const struct dmi_system_id *d; 489d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki 49075757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov for (d = list; !dmi_is_end_of_table(d); d++) 491d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki if (dmi_matches(d)) { 492d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki count++; 493d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki if (d->callback && d->callback(d)) 494d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki break; 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(dmi_check_system); 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 502d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * dmi_first_match - find dmi_system_id structure matching system DMI data 503d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * @list: array of dmi_system_id structures to match against 504d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * All non-null elements of the list must match 505d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * their slot's (field index's) data (i.e., each 506d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * list string must be a substring of the specified 507d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * DMI slot's string data) to be considered a 508d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * successful match. 509d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * 510d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * Walk the blacklist table until the first match is found. Return the 511d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki * pointer to the matching entry or NULL if there's no match. 512d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki */ 513d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysockiconst struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list) 514d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki{ 515d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki const struct dmi_system_id *d; 516d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki 51775757507e014fa074d25d2883c4ab604999584bdDmitry Torokhov for (d = list; !dmi_is_end_of_table(d); d++) 518d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki if (dmi_matches(d)) 519d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki return d; 520d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki 521d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki return NULL; 522d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki} 523d7b1956fed33d30c4815e848fd7a143722916868Rafael J. WysockiEXPORT_SYMBOL(dmi_first_match); 524d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki 525d7b1956fed33d30c4815e848fd7a143722916868Rafael J. Wysocki/** 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dmi_get_system_info - return DMI data value 527b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * @field: data index (see enum dmi_field) 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns one DMI data value, can be used to perform 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * complex DMI data checks. 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5321855256c497ecfefc730df6032243f26855ce52cJeff Garzikconst char *dmi_get_system_info(int field) 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return dmi_ident[field]; 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 536e70c9d5e61c6cb2272c866fc1303e62975006752Dmitry TorokhovEXPORT_SYMBOL(dmi_get_system_info); 537ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 538fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria/** 539c2bacfc44f4b8d03dbaad5d2dca2fb4161e81975Randy Dunlap * dmi_name_in_serial - Check if string is in the DMI product serial information 540c2bacfc44f4b8d03dbaad5d2dca2fb4161e81975Randy Dunlap * @str: string to check for 541fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria */ 542fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Katariaint dmi_name_in_serial(const char *str) 543fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria{ 544fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria int f = DMI_PRODUCT_SERIAL; 545fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria if (dmi_ident[f] && strstr(dmi_ident[f], str)) 546fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria return 1; 547fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria return 0; 548fd8cd7e1919fc1c27fe2fdccd2a1cd32f791ef0fAlok Kataria} 549a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen 550a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen/** 551a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen * dmi_name_in_vendors - Check if string is anywhere in the DMI vendor information. 552a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen * @str: Case sensitive Name 553a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen */ 5541855256c497ecfefc730df6032243f26855ce52cJeff Garzikint dmi_name_in_vendors(const char *str) 555a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen{ 556a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen static int fields[] = { DMI_BIOS_VENDOR, DMI_BIOS_VERSION, DMI_SYS_VENDOR, 557a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen DMI_PRODUCT_NAME, DMI_PRODUCT_VERSION, DMI_BOARD_VENDOR, 558a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen DMI_BOARD_NAME, DMI_BOARD_VERSION, DMI_NONE }; 559a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen int i; 560a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen for (i = 0; fields[i] != DMI_NONE; i++) { 561a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen int f = fields[i]; 562a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen if (dmi_ident[f] && strstr(dmi_ident[f], str)) 563a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen return 1; 564a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen } 565a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen return 0; 566a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen} 567a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi KleenEXPORT_SYMBOL(dmi_name_in_vendors); 568a1bae67243512ca30ceda48e3e24e25b543f8ab7Andi Kleen 569ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin/** 570ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * dmi_find_device - find onboard device by type/name 571ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * @type: device type or %DMI_DEV_TYPE_ANY to match all device types 572b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * @name: device name string or %NULL to match all 573ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * @from: previous device found in search, or %NULL for new search. 574ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * 575ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * Iterates through the list of known onboard devices. If a device is 576ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * found with a matching @vendor and @device, a pointer to its device 577ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * structure is returned. Otherwise, %NULL is returned. 578b0ef371e3f9fa3b2571058be366a6780827ec0bfRandy Dunlap * A new search is initiated by passing %NULL as the @from argument. 579ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin * If @from is not %NULL, searches continue from next device. 580ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin */ 5811855256c497ecfefc730df6032243f26855ce52cJeff Garzikconst struct dmi_device * dmi_find_device(int type, const char *name, 5821855256c497ecfefc730df6032243f26855ce52cJeff Garzik const struct dmi_device *from) 583ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin{ 5841855256c497ecfefc730df6032243f26855ce52cJeff Garzik const struct list_head *head = from ? &from->list : &dmi_devices; 5851855256c497ecfefc730df6032243f26855ce52cJeff Garzik struct list_head *d; 586ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 587ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin for(d = head->next; d != &dmi_devices; d = d->next) { 5881855256c497ecfefc730df6032243f26855ce52cJeff Garzik const struct dmi_device *dev = 5891855256c497ecfefc730df6032243f26855ce52cJeff Garzik list_entry(d, struct dmi_device, list); 590ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 591ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin if (((type == DMI_DEV_TYPE_ANY) || (dev->type == type)) && 592ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin ((name == NULL) || (strcmp(dev->name, name) == 0))) 593ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin return dev; 594ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin } 595ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin 596ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin return NULL; 597ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey Panin} 598ebad6a4230bdb5927495e28bc7837f515bf667a7Andrey PaninEXPORT_SYMBOL(dmi_find_device); 599f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen 600f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen/** 6013e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * dmi_get_date - parse a DMI date 6023e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * @field: data index (see enum dmi_field) 6033e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * @yearp: optional out parameter for the year 6043e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * @monthp: optional out parameter for the month 6053e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * @dayp: optional out parameter for the day 606f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen * 6073e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * The date field is assumed to be in the form resembling 6083e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * [mm[/dd]]/yy[yy] and the result is stored in the out 6093e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * parameters any or all of which can be omitted. 6103e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * 6113e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * If the field doesn't exist, all out parameters are set to zero 6123e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * and false is returned. Otherwise, true is returned with any 6133e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * invalid part of date set to zero. 6143e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * 6153e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * On return, year, month and day are guaranteed to be in the 6163e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * range of [0,9999], [0,12] and [0,31] respectively. 617f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen */ 6183e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heobool dmi_get_date(int field, int *yearp, int *monthp, int *dayp) 619f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen{ 6203e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo int year = 0, month = 0, day = 0; 6213e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo bool exists; 6223e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo const char *s, *y; 62302c24fa87724bb3af969463cd74dc3b3feb24740Tejun Heo char *e; 624f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen 6253e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo s = dmi_get_system_info(field); 6263e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo exists = s; 6273e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (!exists) 6283e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo goto out; 629f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen 6303e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo /* 6313e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * Determine year first. We assume the date string resembles 6323e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * mm/dd/yy[yy] but the original code extracted only the year 6333e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * from the end. Keep the behavior in the spirit of no 6343e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo * surprises. 6353e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo */ 6363e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo y = strrchr(s, '/'); 6373e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (!y) 6383e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo goto out; 6393e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo 6403e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo y++; 6413e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo year = simple_strtoul(y, &e, 10); 6423e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (y != e && year < 100) { /* 2-digit year */ 643f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen year += 1900; 644f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen if (year < 1996) /* no dates < spec 1.0 */ 645f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen year += 100; 646f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen } 6473e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (year > 9999) /* year should fit in %04d */ 6483e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo year = 0; 6493e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo 6503e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo /* parse the mm and dd */ 6513e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo month = simple_strtoul(s, &e, 10); 6523e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (s == e || *e != '/' || !month || month > 12) { 6533e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo month = 0; 6543e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo goto out; 6553e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo } 656f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen 6573e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo s = e + 1; 6583e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo day = simple_strtoul(s, &e, 10); 6593e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (s == y || s == e || *e != '/' || day > 31) 6603e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo day = 0; 6613e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heoout: 6623e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (yearp) 6633e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo *yearp = year; 6643e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (monthp) 6653e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo *monthp = month; 6663e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo if (dayp) 6673e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo *dayp = day; 6683e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun Heo return exists; 669f083a329e63d471a5e9238e837772b1b76c218dbAndi Kleen} 6703e5cd1f2576c720f1d0705fdd7ba64f27e8836b7Tejun HeoEXPORT_SYMBOL(dmi_get_date); 6717fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 6727fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare/** 6737fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare * dmi_walk - Walk the DMI table and get called back for every record 6747fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare * @decode: Callback function 675e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare * @private_data: Private data to be passed to the callback function 6767fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare * 6777fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare * Returns -1 when the DMI table can't be reached, 0 on success. 6787fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare */ 679e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvareint dmi_walk(void (*decode)(const struct dmi_header *, void *), 680e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare void *private_data) 6817fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare{ 6827fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare u8 *buf; 6837fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 6847fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare if (!dmi_available) 6857fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare return -1; 6867fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 6877fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare buf = ioremap(dmi_base, dmi_len); 6887fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare if (buf == NULL) 6897fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare return -1; 6907fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 691e7a19c5624c66afa8118b10cd59f87ee407646bcJean Delvare dmi_table(buf, dmi_len, dmi_num, decode, private_data); 6927fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare 6937fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare iounmap(buf); 6947fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare return 0; 6957fce084a0b3e2bb8caef919f8f36065953655bb5Jean Delvare} 6967fce084a0b3e2bb8caef919f8f36065953655bb5Jean DelvareEXPORT_SYMBOL_GPL(dmi_walk); 697d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby 698d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby/** 699d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby * dmi_match - compare a string to the dmi field (if exists) 700c2bacfc44f4b8d03dbaad5d2dca2fb4161e81975Randy Dunlap * @f: DMI field identifier 701c2bacfc44f4b8d03dbaad5d2dca2fb4161e81975Randy Dunlap * @str: string to compare the DMI field to 702d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby * 703d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby * Returns true if the requested field equals to the str (including NULL). 704d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby */ 705d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slabybool dmi_match(enum dmi_field f, const char *str) 706d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby{ 707d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby const char *info = dmi_get_system_info(f); 708d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby 709d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby if (info == NULL || str == NULL) 710d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby return info == str; 711d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby 712d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby return !strcmp(info, str); 713d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri Slaby} 714d61c72e52b98411d1cfef1fdb3f5a8bb070f8966Jiri SlabyEXPORT_SYMBOL_GPL(dmi_match); 715