1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __DMI_H__ 3 #define __DMI_H__ 4 5 #include <linux/list.h> 6 #include <linux/kobject.h> 7 #include <linux/mod_devicetable.h> 8 9 /* enum dmi_field is in mod_devicetable.h */ 10 11 enum dmi_device_type { 12 DMI_DEV_TYPE_ANY = 0, 13 DMI_DEV_TYPE_OTHER, 14 DMI_DEV_TYPE_UNKNOWN, 15 DMI_DEV_TYPE_VIDEO, 16 DMI_DEV_TYPE_SCSI, 17 DMI_DEV_TYPE_ETHERNET, 18 DMI_DEV_TYPE_TOKENRING, 19 DMI_DEV_TYPE_SOUND, 20 DMI_DEV_TYPE_PATA, 21 DMI_DEV_TYPE_SATA, 22 DMI_DEV_TYPE_SAS, 23 DMI_DEV_TYPE_IPMI = -1, 24 DMI_DEV_TYPE_OEM_STRING = -2, 25 DMI_DEV_TYPE_DEV_ONBOARD = -3, 26 DMI_DEV_TYPE_DEV_SLOT = -4, 27 }; 28 29 enum dmi_entry_type { 30 DMI_ENTRY_BIOS = 0, 31 DMI_ENTRY_SYSTEM, 32 DMI_ENTRY_BASEBOARD, 33 DMI_ENTRY_CHASSIS, 34 DMI_ENTRY_PROCESSOR, 35 DMI_ENTRY_MEM_CONTROLLER, 36 DMI_ENTRY_MEM_MODULE, 37 DMI_ENTRY_CACHE, 38 DMI_ENTRY_PORT_CONNECTOR, 39 DMI_ENTRY_SYSTEM_SLOT, 40 DMI_ENTRY_ONBOARD_DEVICE, 41 DMI_ENTRY_OEMSTRINGS, 42 DMI_ENTRY_SYSCONF, 43 DMI_ENTRY_BIOS_LANG, 44 DMI_ENTRY_GROUP_ASSOC, 45 DMI_ENTRY_SYSTEM_EVENT_LOG, 46 DMI_ENTRY_PHYS_MEM_ARRAY, 47 DMI_ENTRY_MEM_DEVICE, 48 DMI_ENTRY_32_MEM_ERROR, 49 DMI_ENTRY_MEM_ARRAY_MAPPED_ADDR, 50 DMI_ENTRY_MEM_DEV_MAPPED_ADDR, 51 DMI_ENTRY_BUILTIN_POINTING_DEV, 52 DMI_ENTRY_PORTABLE_BATTERY, 53 DMI_ENTRY_SYSTEM_RESET, 54 DMI_ENTRY_HW_SECURITY, 55 DMI_ENTRY_SYSTEM_POWER_CONTROLS, 56 DMI_ENTRY_VOLTAGE_PROBE, 57 DMI_ENTRY_COOLING_DEV, 58 DMI_ENTRY_TEMP_PROBE, 59 DMI_ENTRY_ELECTRICAL_CURRENT_PROBE, 60 DMI_ENTRY_OOB_REMOTE_ACCESS, 61 DMI_ENTRY_BIS_ENTRY, 62 DMI_ENTRY_SYSTEM_BOOT, 63 DMI_ENTRY_MGMT_DEV, 64 DMI_ENTRY_MGMT_DEV_COMPONENT, 65 DMI_ENTRY_MGMT_DEV_THRES, 66 DMI_ENTRY_MEM_CHANNEL, 67 DMI_ENTRY_IPMI_DEV, 68 DMI_ENTRY_SYS_POWER_SUPPLY, 69 DMI_ENTRY_ADDITIONAL, 70 DMI_ENTRY_ONBOARD_DEV_EXT, 71 DMI_ENTRY_MGMT_CONTROLLER_HOST, 72 DMI_ENTRY_INACTIVE = 126, 73 DMI_ENTRY_END_OF_TABLE = 127, 74 }; 75 76 struct dmi_header { 77 u8 type; 78 u8 length; 79 u16 handle; 80 } __packed; 81 82 struct dmi_device { 83 struct list_head list; 84 int type; 85 const char *name; 86 void *device_data; /* Type specific data */ 87 }; 88 89 #ifdef CONFIG_DMI 90 91 struct dmi_dev_onboard { 92 struct dmi_device dev; 93 int instance; 94 int segment; 95 int bus; 96 int devfn; 97 }; 98 99 extern struct kobject *dmi_kobj; 100 extern int dmi_check_system(const struct dmi_system_id *list); 101 const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list); 102 extern const char * dmi_get_system_info(int field); 103 extern const struct dmi_device * dmi_find_device(int type, const char *name, 104 const struct dmi_device *from); 105 extern void dmi_setup(void); 106 extern bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp); 107 extern int dmi_get_bios_year(void); 108 extern int dmi_name_in_vendors(const char *str); 109 extern int dmi_name_in_serial(const char *str); 110 extern int dmi_available; 111 extern int dmi_walk(void (*decode)(const struct dmi_header *, void *), 112 void *private_data); 113 extern bool dmi_match(enum dmi_field f, const char *str); 114 extern void dmi_memdev_name(u16 handle, const char **bank, const char **device); 115 extern u64 dmi_memdev_size(u16 handle); 116 extern u8 dmi_memdev_type(u16 handle); 117 extern u16 dmi_memdev_handle(int slot); 118 119 #else 120 dmi_check_system(const struct dmi_system_id * list)121 static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; } dmi_get_system_info(int field)122 static inline const char * dmi_get_system_info(int field) { return NULL; } dmi_find_device(int type,const char * name,const struct dmi_device * from)123 static inline const struct dmi_device * dmi_find_device(int type, const char *name, 124 const struct dmi_device *from) { return NULL; } dmi_setup(void)125 static inline void dmi_setup(void) { } dmi_get_date(int field,int * yearp,int * monthp,int * dayp)126 static inline bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp) 127 { 128 if (yearp) 129 *yearp = 0; 130 if (monthp) 131 *monthp = 0; 132 if (dayp) 133 *dayp = 0; 134 return false; 135 } dmi_get_bios_year(void)136 static inline int dmi_get_bios_year(void) { return -ENXIO; } dmi_name_in_vendors(const char * s)137 static inline int dmi_name_in_vendors(const char *s) { return 0; } dmi_name_in_serial(const char * s)138 static inline int dmi_name_in_serial(const char *s) { return 0; } 139 #define dmi_available 0 dmi_walk(void (* decode)(const struct dmi_header *,void *),void * private_data)140 static inline int dmi_walk(void (*decode)(const struct dmi_header *, void *), 141 void *private_data) { return -ENXIO; } dmi_match(enum dmi_field f,const char * str)142 static inline bool dmi_match(enum dmi_field f, const char *str) 143 { return false; } dmi_memdev_name(u16 handle,const char ** bank,const char ** device)144 static inline void dmi_memdev_name(u16 handle, const char **bank, 145 const char **device) { } dmi_memdev_size(u16 handle)146 static inline u64 dmi_memdev_size(u16 handle) { return ~0ul; } dmi_memdev_type(u16 handle)147 static inline u8 dmi_memdev_type(u16 handle) { return 0x0; } dmi_memdev_handle(int slot)148 static inline u16 dmi_memdev_handle(int slot) { return 0xffff; } 149 static inline const struct dmi_system_id * dmi_first_match(const struct dmi_system_id * list)150 dmi_first_match(const struct dmi_system_id *list) { return NULL; } 151 152 #endif 153 154 #endif /* __DMI_H__ */ 155