1#ifndef _KBD_KERN_H
2#define _KBD_KERN_H
3
4#include <linux/tty.h>
5#include <linux/interrupt.h>
6#include <linux/keyboard.h>
7
8extern struct tasklet_struct keyboard_tasklet;
9
10extern char *func_table[MAX_NR_FUNC];
11extern char func_buf[];
12extern char *funcbufptr;
13extern int funcbufsize, funcbufleft;
14
15/*
16 * kbd->xxx contains the VC-local things (flag settings etc..)
17 *
18 * Note: externally visible are LED_SCR, LED_NUM, LED_CAP defined in kd.h
19 *       The code in KDGETLED / KDSETLED depends on the internal and
20 *       external order being the same.
21 *
22 * Note: lockstate is used as index in the array key_map.
23 */
24struct kbd_struct {
25
26	unsigned char lockstate;
27/* 8 modifiers - the names do not have any meaning at all;
28   they can be associated to arbitrarily chosen keys */
29#define VC_SHIFTLOCK	KG_SHIFT	/* shift lock mode */
30#define VC_ALTGRLOCK	KG_ALTGR	/* altgr lock mode */
31#define VC_CTRLLOCK	KG_CTRL 	/* control lock mode */
32#define VC_ALTLOCK	KG_ALT  	/* alt lock mode */
33#define VC_SHIFTLLOCK	KG_SHIFTL	/* shiftl lock mode */
34#define VC_SHIFTRLOCK	KG_SHIFTR	/* shiftr lock mode */
35#define VC_CTRLLLOCK	KG_CTRLL 	/* ctrll lock mode */
36#define VC_CTRLRLOCK	KG_CTRLR 	/* ctrlr lock mode */
37	unsigned char slockstate; 	/* for `sticky' Shift, Ctrl, etc. */
38
39	unsigned char ledmode:1;
40#define LED_SHOW_FLAGS 0        /* traditional state */
41#define LED_SHOW_IOCTL 1        /* only change leds upon ioctl */
42
43	unsigned char ledflagstate:4;	/* flags, not lights */
44	unsigned char default_ledflagstate:4;
45#define VC_SCROLLOCK	0	/* scroll-lock mode */
46#define VC_NUMLOCK	1	/* numeric lock mode */
47#define VC_CAPSLOCK	2	/* capslock mode */
48#define VC_KANALOCK	3	/* kanalock mode */
49
50	unsigned char kbdmode:3;	/* one 3-bit value */
51#define VC_XLATE	0	/* translate keycodes using keymap */
52#define VC_MEDIUMRAW	1	/* medium raw (keycode) mode */
53#define VC_RAW		2	/* raw (scancode) mode */
54#define VC_UNICODE	3	/* Unicode mode */
55#define VC_OFF		4	/* disabled mode */
56
57	unsigned char modeflags:5;
58#define VC_APPLIC	0	/* application key mode */
59#define VC_CKMODE	1	/* cursor key mode */
60#define VC_REPEAT	2	/* keyboard repeat */
61#define VC_CRLF		3	/* 0 - enter sends CR, 1 - enter sends CRLF */
62#define VC_META		4	/* 0 - meta, 1 - meta=prefix with ESC */
63};
64
65extern int kbd_init(void);
66
67extern void setledstate(struct kbd_struct *kbd, unsigned int led);
68
69extern int do_poke_blanked_console;
70
71extern void (*kbd_ledfunc)(unsigned int led);
72
73extern int set_console(int nr);
74extern void schedule_console_callback(void);
75
76/* FIXME: review locking for vt.c callers */
77static inline void set_leds(void)
78{
79	tasklet_schedule(&keyboard_tasklet);
80}
81
82static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
83{
84	return ((kbd->modeflags >> flag) & 1);
85}
86
87static inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
88{
89	return ((kbd->ledflagstate >> flag) & 1);
90}
91
92static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
93{
94	kbd->modeflags |= 1 << flag;
95}
96
97static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
98{
99	kbd->ledflagstate |= 1 << flag;
100}
101
102static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
103{
104	kbd->modeflags &= ~(1 << flag);
105}
106
107static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
108{
109	kbd->ledflagstate &= ~(1 << flag);
110}
111
112static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
113{
114	kbd->lockstate ^= 1 << flag;
115}
116
117static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
118{
119	kbd->slockstate ^= 1 << flag;
120}
121
122static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
123{
124	kbd->modeflags ^= 1 << flag;
125}
126
127static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
128{
129	kbd->ledflagstate ^= 1 << flag;
130}
131
132#define U(x) ((x) ^ 0xf000)
133
134#define BRL_UC_ROW 0x2800
135
136/* keyboard.c */
137
138struct console;
139
140void compute_shiftstate(void);
141
142/* defkeymap.c */
143
144extern unsigned int keymap_count;
145
146#endif
147