1855256c49
Three main sets of changes: 1) dmi_get_system_info() return value should have been marked const, since callers should not be changing that data. 2) const-ify DMI internals, since DMI firmware tables should, whenever possible, be marked const to ensure we never ever write to that data area. 3) const-ify DMI API, to enable marking tables const where possible in low-level drivers. And if we're really lucky, this might enable some additional optimizations on the part of the compiler. The bulk of the changes are #2 and #3, which are interrelated. #1 could have been a separate patch, but it was so small compared to the others, it was easier to roll it into this changeset. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
93 lines
2 KiB
C
93 lines
2 KiB
C
#ifndef __DMI_H__
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#define __DMI_H__
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#include <linux/list.h>
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enum dmi_field {
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DMI_NONE,
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DMI_BIOS_VENDOR,
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DMI_BIOS_VERSION,
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DMI_BIOS_DATE,
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DMI_SYS_VENDOR,
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DMI_PRODUCT_NAME,
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DMI_PRODUCT_VERSION,
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DMI_PRODUCT_SERIAL,
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DMI_PRODUCT_UUID,
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DMI_BOARD_VENDOR,
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DMI_BOARD_NAME,
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DMI_BOARD_VERSION,
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DMI_BOARD_SERIAL,
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DMI_BOARD_ASSET_TAG,
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DMI_CHASSIS_VENDOR,
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DMI_CHASSIS_TYPE,
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DMI_CHASSIS_VERSION,
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DMI_CHASSIS_SERIAL,
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DMI_CHASSIS_ASSET_TAG,
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DMI_STRING_MAX,
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};
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enum dmi_device_type {
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DMI_DEV_TYPE_ANY = 0,
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DMI_DEV_TYPE_OTHER,
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DMI_DEV_TYPE_UNKNOWN,
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DMI_DEV_TYPE_VIDEO,
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DMI_DEV_TYPE_SCSI,
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DMI_DEV_TYPE_ETHERNET,
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DMI_DEV_TYPE_TOKENRING,
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DMI_DEV_TYPE_SOUND,
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DMI_DEV_TYPE_IPMI = -1,
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DMI_DEV_TYPE_OEM_STRING = -2
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};
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struct dmi_header {
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u8 type;
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u8 length;
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u16 handle;
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};
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/*
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* DMI callbacks for problem boards
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*/
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struct dmi_strmatch {
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u8 slot;
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char *substr;
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};
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struct dmi_system_id {
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int (*callback)(const struct dmi_system_id *);
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const char *ident;
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struct dmi_strmatch matches[4];
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void *driver_data;
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};
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#define DMI_MATCH(a, b) { a, b }
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struct dmi_device {
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struct list_head list;
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int type;
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const char *name;
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void *device_data; /* Type specific data */
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};
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#ifdef CONFIG_DMI
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extern int dmi_check_system(const struct dmi_system_id *list);
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extern const char * dmi_get_system_info(int field);
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extern const struct dmi_device * dmi_find_device(int type, const char *name,
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const struct dmi_device *from);
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extern void dmi_scan_machine(void);
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extern int dmi_get_year(int field);
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extern int dmi_name_in_vendors(const char *str);
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#else
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static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; }
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static inline const char * dmi_get_system_info(int field) { return NULL; }
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static inline const struct dmi_device * dmi_find_device(int type, const char *name,
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const struct dmi_device *from) { return NULL; }
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static inline int dmi_get_year(int year) { return 0; }
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static inline int dmi_name_in_vendors(const char *s) { return 0; }
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#endif
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#endif /* __DMI_H__ */
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