1. 根目录:
2. include
3. linux
4. consolemap.h

/*
 * consolemap.h
 *
 * Interface between console.c, selection.c  and consolemap.c
 */
#ifndef __LINUX_CONSOLEMAP_H__
#define __LINUX_CONSOLEMAP_H__

#define LAT1_MAP 0
#define GRAF_MAP 1
#define IBMPC_MAP 2
#define USER_MAP 3

#include <linux/types.h>

#ifdef CONFIG_CONSOLE_TRANSLATIONS
struct vc_data;

extern u16 inverse_translate(struct vc_data *conp, int glyph, int use_unicode);
extern unsigned short *set_translate(int m, struct vc_data *vc);
extern int conv_uni_to_pc(struct vc_data *conp, long ucs);
extern u32 conv_8bit_to_uni(unsigned char c);
extern int conv_uni_to_8bit(u32 uni);
void console_map_init(void);
#else
#define inverse_translate(conp, glyph, uni) ((uint16_t)glyph)
#define set_translate(m, vc) ((unsigned short *)NULL)
#define conv_uni_to_pc(conp, ucs) ((int) (ucs > 0xff ? -1: ucs))
#define conv_8bit_to_uni(c) ((uint32_t)(c))
#define conv_uni_to_8bit(c) ((int) ((c) & 0xff))
#define console_map_init(c) do { ; } while (0)
#endif /* CONFIG_CONSOLE_TRANSLATIONS */

#endif /* __LINUX_CONSOLEMAP_H__ */