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 | |