linux/include/linux/dmi.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __DMI_H__
#define __DMI_H__

#include <linux/list.h>
#include <linux/kobject.h>
#include <linux/mod_devicetable.h>

/* enum dmi_field is in mod_devicetable.h */

enum dmi_device_type { … };

enum dmi_entry_type { … };

struct dmi_header { … } __packed;

struct dmi_device { … };

#ifdef CONFIG_DMI

struct dmi_dev_onboard { … };

extern struct kobject *dmi_kobj;
extern int dmi_check_system(const struct dmi_system_id *list);
const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list);
extern const char * dmi_get_system_info(int field);
extern const struct dmi_device * dmi_find_device(int type, const char *name,
	const struct dmi_device *from);
extern void dmi_setup(void);
extern bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp);
extern int dmi_get_bios_year(void);
extern int dmi_name_in_vendors(const char *str);
extern int dmi_name_in_serial(const char *str);
extern int dmi_available;
extern int dmi_walk(void (*decode)(const struct dmi_header *, void *),
	void *private_data);
extern bool dmi_match(enum dmi_field f, const char *str);
extern void dmi_memdev_name(u16 handle, const char **bank, const char **device);
extern u64 dmi_memdev_size(u16 handle);
extern u8 dmi_memdev_type(u16 handle);
extern u16 dmi_memdev_handle(int slot);

#else

static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; }
static inline const char * dmi_get_system_info(int field) { return NULL; }
static inline const struct dmi_device * dmi_find_device(int type, const char *name,
	const struct dmi_device *from) { return NULL; }
static inline void dmi_setup(void) { }
static inline bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp)
{
	if (yearp)
		*yearp = 0;
	if (monthp)
		*monthp = 0;
	if (dayp)
		*dayp = 0;
	return false;
}
static inline int dmi_get_bios_year(void) { return -ENXIO; }
static inline int dmi_name_in_vendors(const char *s) { return 0; }
static inline int dmi_name_in_serial(const char *s) { return 0; }
#define dmi_available …
static inline int dmi_walk(void (*decode)(const struct dmi_header *, void *),
	void *private_data) { return -ENXIO; }
static inline bool dmi_match(enum dmi_field f, const char *str)
	{ return false; }
static inline void dmi_memdev_name(u16 handle, const char **bank,
		const char **device) { }
static inline u64 dmi_memdev_size(u16 handle) { return ~0ul; }
static inline u8 dmi_memdev_type(u16 handle) { return 0x0; }
static inline u16 dmi_memdev_handle(int slot) { return 0xffff; }
static inline const struct dmi_system_id *
	dmi_first_match(const struct dmi_system_id *list) { return NULL; }

#endif

#endif	/* __DMI_H__ */