1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _KBD_KERN_H 3 #define _KBD_KERN_H 4 5 #include <linux/tty.h> 6 #include <linux/interrupt.h> 7 #include <linux/keyboard.h> 8 9 extern char *func_table[MAX_NR_FUNC]; 10 11 /* 12 * kbd->xxx contains the VC-local things (flag settings etc..) 13 * 14 * Note: externally visible are LED_SCR, LED_NUM, LED_CAP defined in kd.h 15 * The code in KDGETLED / KDSETLED depends on the internal and 16 * external order being the same. 17 * 18 * Note: lockstate is used as index in the array key_map. 19 */ 20 struct kbd_struct { 21 22 unsigned char lockstate; 23 /* 8 modifiers - the names do not have any meaning at all; 24 they can be associated to arbitrarily chosen keys */ 25 #define VC_SHIFTLOCK KG_SHIFT /* shift lock mode */ 26 #define VC_ALTGRLOCK KG_ALTGR /* altgr lock mode */ 27 #define VC_CTRLLOCK KG_CTRL /* control lock mode */ 28 #define VC_ALTLOCK KG_ALT /* alt lock mode */ 29 #define VC_SHIFTLLOCK KG_SHIFTL /* shiftl lock mode */ 30 #define VC_SHIFTRLOCK KG_SHIFTR /* shiftr lock mode */ 31 #define VC_CTRLLLOCK KG_CTRLL /* ctrll lock mode */ 32 #define VC_CTRLRLOCK KG_CTRLR /* ctrlr lock mode */ 33 unsigned char slockstate; /* for `sticky' Shift, Ctrl, etc. */ 34 35 unsigned char ledmode:1; 36 #define LED_SHOW_FLAGS 0 /* traditional state */ 37 #define LED_SHOW_IOCTL 1 /* only change leds upon ioctl */ 38 39 unsigned char ledflagstate:4; /* flags, not lights */ 40 unsigned char default_ledflagstate:4; 41 #define VC_SCROLLOCK 0 /* scroll-lock mode */ 42 #define VC_NUMLOCK 1 /* numeric lock mode */ 43 #define VC_CAPSLOCK 2 /* capslock mode */ 44 #define VC_KANALOCK 3 /* kanalock mode */ 45 46 unsigned char kbdmode:3; /* one 3-bit value */ 47 #define VC_XLATE 0 /* translate keycodes using keymap */ 48 #define VC_MEDIUMRAW 1 /* medium raw (keycode) mode */ 49 #define VC_RAW 2 /* raw (scancode) mode */ 50 #define VC_UNICODE 3 /* Unicode mode */ 51 #define VC_OFF 4 /* disabled mode */ 52 53 unsigned char modeflags:5; 54 #define VC_APPLIC 0 /* application key mode */ 55 #define VC_CKMODE 1 /* cursor key mode */ 56 #define VC_REPEAT 2 /* keyboard repeat */ 57 #define VC_CRLF 3 /* 0 - enter sends CR, 1 - enter sends CRLF */ 58 #define VC_META 4 /* 0 - meta, 1 - meta=prefix with ESC */ 59 }; 60 61 extern int kbd_init(void); 62 63 extern void setledstate(struct kbd_struct *kbd, unsigned int led); 64 65 extern int do_poke_blanked_console; 66 67 extern void (*kbd_ledfunc)(unsigned int led); 68 69 extern int set_console(int nr); 70 extern void schedule_console_callback(void); 71 72 static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag) 73 { 74 return ((kbd->modeflags >> flag) & 1); 75 } 76 77 static inline int vc_kbd_led(struct kbd_struct * kbd, int flag) 78 { 79 return ((kbd->ledflagstate >> flag) & 1); 80 } 81 82 static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag) 83 { 84 kbd->modeflags |= 1 << flag; 85 } 86 87 static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag) 88 { 89 kbd->ledflagstate |= 1 << flag; 90 } 91 92 static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag) 93 { 94 kbd->modeflags &= ~(1 << flag); 95 } 96 97 static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag) 98 { 99 kbd->ledflagstate &= ~(1 << flag); 100 } 101 102 static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag) 103 { 104 kbd->lockstate ^= 1 << flag; 105 } 106 107 static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag) 108 { 109 kbd->slockstate ^= 1 << flag; 110 } 111 112 static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag) 113 { 114 kbd->modeflags ^= 1 << flag; 115 } 116 117 static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag) 118 { 119 kbd->ledflagstate ^= 1 << flag; 120 } 121 122 #define U(x) ((x) ^ 0xf000) 123 124 #define BRL_UC_ROW 0x2800 125 126 /* keyboard.c */ 127 128 struct console; 129 130 void vt_set_leds_compute_shiftstate(void); 131 132 /* defkeymap.c */ 133 134 extern unsigned int keymap_count; 135 136 #endif 137