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 struct tasklet_struct keyboard_tasklet; 10 11 extern char *func_table[MAX_NR_FUNC]; 12 13 /* 14 * kbd->xxx contains the VC-local things (flag settings etc..) 15 * 16 * Note: externally visible are LED_SCR, LED_NUM, LED_CAP defined in kd.h 17 * The code in KDGETLED / KDSETLED depends on the internal and 18 * external order being the same. 19 * 20 * Note: lockstate is used as index in the array key_map. 21 */ 22 struct kbd_struct { 23 24 unsigned char lockstate; 25 /* 8 modifiers - the names do not have any meaning at all; 26 they can be associated to arbitrarily chosen keys */ 27 #define VC_SHIFTLOCK KG_SHIFT /* shift lock mode */ 28 #define VC_ALTGRLOCK KG_ALTGR /* altgr lock mode */ 29 #define VC_CTRLLOCK KG_CTRL /* control lock mode */ 30 #define VC_ALTLOCK KG_ALT /* alt lock mode */ 31 #define VC_SHIFTLLOCK KG_SHIFTL /* shiftl lock mode */ 32 #define VC_SHIFTRLOCK KG_SHIFTR /* shiftr lock mode */ 33 #define VC_CTRLLLOCK KG_CTRLL /* ctrll lock mode */ 34 #define VC_CTRLRLOCK KG_CTRLR /* ctrlr lock mode */ 35 unsigned char slockstate; /* for `sticky' Shift, Ctrl, etc. */ 36 37 unsigned char ledmode:1; 38 #define LED_SHOW_FLAGS 0 /* traditional state */ 39 #define LED_SHOW_IOCTL 1 /* only change leds upon ioctl */ 40 41 unsigned char ledflagstate:4; /* flags, not lights */ 42 unsigned char default_ledflagstate:4; 43 #define VC_SCROLLOCK 0 /* scroll-lock mode */ 44 #define VC_NUMLOCK 1 /* numeric lock mode */ 45 #define VC_CAPSLOCK 2 /* capslock mode */ 46 #define VC_KANALOCK 3 /* kanalock mode */ 47 48 unsigned char kbdmode:3; /* one 3-bit value */ 49 #define VC_XLATE 0 /* translate keycodes using keymap */ 50 #define VC_MEDIUMRAW 1 /* medium raw (keycode) mode */ 51 #define VC_RAW 2 /* raw (scancode) mode */ 52 #define VC_UNICODE 3 /* Unicode mode */ 53 #define VC_OFF 4 /* disabled mode */ 54 55 unsigned char modeflags:5; 56 #define VC_APPLIC 0 /* application key mode */ 57 #define VC_CKMODE 1 /* cursor key mode */ 58 #define VC_REPEAT 2 /* keyboard repeat */ 59 #define VC_CRLF 3 /* 0 - enter sends CR, 1 - enter sends CRLF */ 60 #define VC_META 4 /* 0 - meta, 1 - meta=prefix with ESC */ 61 }; 62 63 extern int kbd_init(void); 64 65 extern void setledstate(struct kbd_struct *kbd, unsigned int led); 66 67 extern int do_poke_blanked_console; 68 69 extern void (*kbd_ledfunc)(unsigned int led); 70 71 extern int set_console(int nr); 72 extern void schedule_console_callback(void); 73 74 /* FIXME: review locking for vt.c callers */ 75 static inline void set_leds(void) 76 { 77 tasklet_schedule(&keyboard_tasklet); 78 } 79 80 static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag) 81 { 82 return ((kbd->modeflags >> flag) & 1); 83 } 84 85 static inline int vc_kbd_led(struct kbd_struct * kbd, int flag) 86 { 87 return ((kbd->ledflagstate >> flag) & 1); 88 } 89 90 static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag) 91 { 92 kbd->modeflags |= 1 << flag; 93 } 94 95 static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag) 96 { 97 kbd->ledflagstate |= 1 << flag; 98 } 99 100 static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag) 101 { 102 kbd->modeflags &= ~(1 << flag); 103 } 104 105 static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag) 106 { 107 kbd->ledflagstate &= ~(1 << flag); 108 } 109 110 static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag) 111 { 112 kbd->lockstate ^= 1 << flag; 113 } 114 115 static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag) 116 { 117 kbd->slockstate ^= 1 << flag; 118 } 119 120 static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag) 121 { 122 kbd->modeflags ^= 1 << flag; 123 } 124 125 static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag) 126 { 127 kbd->ledflagstate ^= 1 << flag; 128 } 129 130 #define U(x) ((x) ^ 0xf000) 131 132 #define BRL_UC_ROW 0x2800 133 134 /* keyboard.c */ 135 136 struct console; 137 138 void compute_shiftstate(void); 139 140 /* defkeymap.c */ 141 142 extern unsigned int keymap_count; 143 144 #endif 145