Linux Kernel  3.7.1
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kbd_kern.h
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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 
8 extern struct tasklet_struct keyboard_tasklet;
9 
10 extern char *func_table[MAX_NR_FUNC];
11 extern char func_buf[];
12 extern char *funcbufptr;
13 extern 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  */
24 struct 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:2; /* one 2-bit value */
40 #define LED_SHOW_FLAGS 0 /* traditional state */
41 #define LED_SHOW_IOCTL 1 /* only change leds upon ioctl */
42 #define LED_SHOW_MEM 2 /* `heartbeat': peek into memory */
43 
44  unsigned char ledflagstate:4; /* flags, not lights */
45  unsigned char default_ledflagstate:4;
46 #define VC_SCROLLOCK 0 /* scroll-lock mode */
47 #define VC_NUMLOCK 1 /* numeric lock mode */
48 #define VC_CAPSLOCK 2 /* capslock mode */
49 #define VC_KANALOCK 3 /* kanalock mode */
50 
51  unsigned char kbdmode:3; /* one 3-bit value */
52 #define VC_XLATE 0 /* translate keycodes using keymap */
53 #define VC_MEDIUMRAW 1 /* medium raw (keycode) mode */
54 #define VC_RAW 2 /* raw (scancode) mode */
55 #define VC_UNICODE 3 /* Unicode mode */
56 #define VC_OFF 4 /* disabled mode */
57 
58  unsigned char modeflags:5;
59 #define VC_APPLIC 0 /* application key mode */
60 #define VC_CKMODE 1 /* cursor key mode */
61 #define VC_REPEAT 2 /* keyboard repeat */
62 #define VC_CRLF 3 /* 0 - enter sends CR, 1 - enter sends CRLF */
63 #define VC_META 4 /* 0 - meta, 1 - meta=prefix with ESC */
64 };
65 
66 extern int kbd_init(void);
67 
68 extern void setledstate(struct kbd_struct *kbd, unsigned int led);
69 
70 extern int do_poke_blanked_console;
71 
72 extern void (*kbd_ledfunc)(unsigned int led);
73 
74 extern int set_console(int nr);
75 extern void schedule_console_callback(void);
76 
77 /* FIXME: review locking for vt.c callers */
78 static inline void set_leds(void)
79 {
80  tasklet_schedule(&keyboard_tasklet);
81 }
82 
83 static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
84 {
85  return ((kbd->modeflags >> flag) & 1);
86 }
87 
88 static inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
89 {
90  return ((kbd->ledflagstate >> flag) & 1);
91 }
92 
93 static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
94 {
95  kbd->modeflags |= 1 << flag;
96 }
97 
98 static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
99 {
100  kbd->ledflagstate |= 1 << flag;
101 }
102 
103 static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
104 {
105  kbd->modeflags &= ~(1 << flag);
106 }
107 
108 static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
109 {
110  kbd->ledflagstate &= ~(1 << flag);
111 }
112 
113 static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
114 {
115  kbd->lockstate ^= 1 << flag;
116 }
117 
118 static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
119 {
120  kbd->slockstate ^= 1 << flag;
121 }
122 
123 static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
124 {
125  kbd->modeflags ^= 1 << flag;
126 }
127 
128 static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
129 {
130  kbd->ledflagstate ^= 1 << flag;
131 }
132 
133 #define U(x) ((x) ^ 0xf000)
134 
135 #define BRL_UC_ROW 0x2800
136 
137 /* keyboard.c */
138 
139 struct console;
140 
141 void compute_shiftstate(void);
142 
143 /* defkeymap.c */
144 
145 extern unsigned int keymap_count;
146 
147 #endif