include/linux/consolemap.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * consolemap.h
   4  *
   5  * Interface between console.c, selection.c  and consolemap.c
   6  */
   7 #ifndef __LINUX_CONSOLEMAP_H__
   8 #define __LINUX_CONSOLEMAP_H__
   9
  10 enum translation_map {
  11         LAT1_MAP,
  12         GRAF_MAP,
  13         IBMPC_MAP,
  14         USER_MAP,
  15
  16         FIRST_MAP = LAT1_MAP,
  17         LAST_MAP = USER_MAP,
  18 };
  19
  20 #include <linux/types.h>
  21
  22 struct vc_data;
  23
  24 #ifdef CONFIG_CONSOLE_TRANSLATIONS
  25 u16 inverse_translate(const struct vc_data *conp, u16 glyph, bool use_unicode);
  26 unsigned short *set_translate(enum translation_map m, struct vc_data *vc);
  27 int conv_uni_to_pc(struct vc_data *conp, long ucs);
  28 u32 conv_8bit_to_uni(unsigned char c);
  29 int conv_uni_to_8bit(u32 uni);
  30 void console_map_init(void);
  31 #else
  32 static inline u16 inverse_translate(const struct vc_data *conp, u16 glyph,
  33                 bool use_unicode)
  34 {
  35         return glyph;
  36 }
  37
  38 static inline unsigned short *set_translate(enum translation_map m,
  39                 struct vc_data *vc)
  40 {
  41         return NULL;
  42 }
  43
  44 static inline int conv_uni_to_pc(struct vc_data *conp, long ucs)
  45 {
  46         return ucs > 0xff ? -1 : ucs;
  47 }
  48
  49 static inline u32 conv_8bit_to_uni(unsigned char c)
  50 {
  51         return c;
  52 }
  53
  54 static inline int conv_uni_to_8bit(u32 uni)
  55 {
  56         return uni & 0xff;
  57 }
  58
  59 static inline void console_map_init(void) { }
  60 #endif /* CONFIG_CONSOLE_TRANSLATIONS */
  61
  62 #endif /* __LINUX_CONSOLEMAP_H__ */