include/linux/dmi.h

   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_scan_machine(void);
 106 extern void dmi_memdev_walk(void);
 107 extern void dmi_set_dump_stack_arch_desc(void);
 108 extern bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp);
 109 extern int dmi_get_bios_year(void);
 110 extern int dmi_name_in_vendors(const char *str);
 111 extern int dmi_name_in_serial(const char *str);
 112 extern int dmi_available;
 113 extern int dmi_walk(void (*decode)(const struct dmi_header *, void *),
 114         void *private_data);
 115 extern bool dmi_match(enum dmi_field f, const char *str);
 116 extern void dmi_memdev_name(u16 handle, const char **bank, const char **device);
 117 extern u64 dmi_memdev_size(u16 handle);
 118
 119 #else
 120
 121 static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; }
 122 static inline const char * dmi_get_system_info(int field) { return NULL; }
 123 static inline const struct dmi_device * dmi_find_device(int type, const char *name,
 124         const struct dmi_device *from) { return NULL; }
 125 static inline void dmi_scan_machine(void) { return; }
 126 static inline void dmi_memdev_walk(void) { }
 127 static inline void dmi_set_dump_stack_arch_desc(void) { }
 128 static inline bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp)
 129 {
 130         if (yearp)
 131                 *yearp = 0;
 132         if (monthp)
 133                 *monthp = 0;
 134         if (dayp)
 135                 *dayp = 0;
 136         return false;
 137 }
 138 static inline int dmi_get_bios_year(void) { return -ENXIO; }
 139 static inline int dmi_name_in_vendors(const char *s) { return 0; }
 140 static inline int dmi_name_in_serial(const char *s) { return 0; }
 141 #define dmi_available 0
 142 static inline int dmi_walk(void (*decode)(const struct dmi_header *, void *),
 143         void *private_data) { return -ENXIO; }
 144 static inline bool dmi_match(enum dmi_field f, const char *str)
 145         { return false; }
 146 static inline void dmi_memdev_name(u16 handle, const char **bank,
 147                 const char **device) { }
 148 static inline u64 dmi_memdev_size(u16 handle) { return ~0ul; }
 149 static inline const struct dmi_system_id *
 150         dmi_first_match(const struct dmi_system_id *list) { return NULL; }
 151
 152 #endif
 153
 154 #endif  /* __DMI_H__ */