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kernel-ark/include/linux/keyboard.h
Samuel Thibault 41ab4396e1 Console keyboard events and accessibility 
Some blind people use a kernel engine called Speakup which uses hardware
synthesis to speak what gets displayed on the screen.  They use the
PC keyboard to control this engine (start/stop, accelerate, ...) and
also need to get keyboard feedback (to make sure to know what they are
typing, the caps lock status, etc.)

Up to now, the way it was done was very ugly.  Below is a patch to add a
notifier list for permitting a far better implementation, see ChangeLog
above for details.

You may wonder why this can't be done at the input layer.  The problem
is that what people want to monitor is the console keyboard, i.e. all
input keyboards that got attached to the console, and with the currently
active keymap (i.e. keysyms, not only keycodes).

This adds a keyboard notifier that such modules can use to get the keyboard
events and possibly eat them, at several stages:

- keycodes: even before translation into keysym.
- unbound keycodes: when no keysym is bound.
- unicode: when the keycode would get translated into a unicode character.
- keysym: when the keycode would get translated into a keysym.
- post_keysym: after the keysym got interpreted, so as to see the result
  (caps lock, etc.)

This also provides access to k_handler so as to permit simulation of
keypresses.

[akpm@linux-foundation.org: various fixes]
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:33 -07:00

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#ifndef __LINUX_KEYBOARD_H
#define __LINUX_KEYBOARD_H
#include <linux/wait.h>
#define KG_SHIFT 0
#define KG_CTRL 2
#define KG_ALT 3
#define KG_ALTGR 1
#define KG_SHIFTL 4
#define KG_KANASHIFT 4
#define KG_SHIFTR 5
#define KG_CTRLL 6
#define KG_CTRLR 7
#define KG_CAPSSHIFT 8
#define NR_SHIFT 9
#define NR_KEYS 256
#define MAX_NR_KEYMAPS 256
/* This means 128Kb if all keymaps are allocated. Only the superuser
may increase the number of keymaps beyond MAX_NR_OF_USER_KEYMAPS. */
#define MAX_NR_OF_USER_KEYMAPS 256 /* should be at least 7 */
#ifdef __KERNEL__
struct notifier_block;
extern const int NR_TYPES;
extern const int max_vals[];
extern unsigned short *key_maps[MAX_NR_KEYMAPS];
extern unsigned short plain_map[NR_KEYS];
struct keyboard_notifier_param {
struct vc_data *vc; /* VC on which the keyboard press was done */
int down; /* Pressure of the key? */
int shift; /* Current shift mask */
unsigned int value; /* keycode, unicode value or keysym */
};
extern int register_keyboard_notifier(struct notifier_block *nb);
extern int unregister_keyboard_notifier(struct notifier_block *nb);
#endif
#define MAX_NR_FUNC 256 /* max nr of strings assigned to keys */
#define KT_LATIN 0 /* we depend on this being zero */
#define KT_LETTER 11 /* symbol that can be acted upon by CapsLock */
#define KT_FN 1
#define KT_SPEC 2
#define KT_PAD 3
#define KT_DEAD 4
#define KT_CONS 5
#define KT_CUR 6
#define KT_SHIFT 7
#define KT_META 8
#define KT_ASCII 9
#define KT_LOCK 10
#define KT_SLOCK 12
#define KT_BRL 14
#define K(t,v) (((t)<<8)|(v))
#define KTYP(x) ((x) >> 8)
#define KVAL(x) ((x) & 0xff)
#define K_F1 K(KT_FN,0)
#define K_F2 K(KT_FN,1)
#define K_F3 K(KT_FN,2)
#define K_F4 K(KT_FN,3)
#define K_F5 K(KT_FN,4)
#define K_F6 K(KT_FN,5)
#define K_F7 K(KT_FN,6)
#define K_F8 K(KT_FN,7)
#define K_F9 K(KT_FN,8)
#define K_F10 K(KT_FN,9)
#define K_F11 K(KT_FN,10)
#define K_F12 K(KT_FN,11)
#define K_F13 K(KT_FN,12)
#define K_F14 K(KT_FN,13)
#define K_F15 K(KT_FN,14)
#define K_F16 K(KT_FN,15)
#define K_F17 K(KT_FN,16)
#define K_F18 K(KT_FN,17)
#define K_F19 K(KT_FN,18)
#define K_F20 K(KT_FN,19)
#define K_FIND K(KT_FN,20)
#define K_INSERT K(KT_FN,21)
#define K_REMOVE K(KT_FN,22)
#define K_SELECT K(KT_FN,23)
#define K_PGUP K(KT_FN,24) /* PGUP is a synonym for PRIOR */
#define K_PGDN K(KT_FN,25) /* PGDN is a synonym for NEXT */
#define K_MACRO K(KT_FN,26)
#define K_HELP K(KT_FN,27)
#define K_DO K(KT_FN,28)
#define K_PAUSE K(KT_FN,29)
#define K_F21 K(KT_FN,30)
#define K_F22 K(KT_FN,31)
#define K_F23 K(KT_FN,32)
#define K_F24 K(KT_FN,33)
#define K_F25 K(KT_FN,34)
#define K_F26 K(KT_FN,35)
#define K_F27 K(KT_FN,36)
#define K_F28 K(KT_FN,37)
#define K_F29 K(KT_FN,38)
#define K_F30 K(KT_FN,39)
#define K_F31 K(KT_FN,40)
#define K_F32 K(KT_FN,41)
#define K_F33 K(KT_FN,42)
#define K_F34 K(KT_FN,43)
#define K_F35 K(KT_FN,44)
#define K_F36 K(KT_FN,45)
#define K_F37 K(KT_FN,46)
#define K_F38 K(KT_FN,47)
#define K_F39 K(KT_FN,48)
#define K_F40 K(KT_FN,49)
#define K_F41 K(KT_FN,50)
#define K_F42 K(KT_FN,51)
#define K_F43 K(KT_FN,52)
#define K_F44 K(KT_FN,53)
#define K_F45 K(KT_FN,54)
#define K_F46 K(KT_FN,55)
#define K_F47 K(KT_FN,56)
#define K_F48 K(KT_FN,57)
#define K_F49 K(KT_FN,58)
#define K_F50 K(KT_FN,59)
#define K_F51 K(KT_FN,60)
#define K_F52 K(KT_FN,61)
#define K_F53 K(KT_FN,62)
#define K_F54 K(KT_FN,63)
#define K_F55 K(KT_FN,64)
#define K_F56 K(KT_FN,65)
#define K_F57 K(KT_FN,66)
#define K_F58 K(KT_FN,67)
#define K_F59 K(KT_FN,68)
#define K_F60 K(KT_FN,69)
#define K_F61 K(KT_FN,70)
#define K_F62 K(KT_FN,71)
#define K_F63 K(KT_FN,72)
#define K_F64 K(KT_FN,73)
#define K_F65 K(KT_FN,74)
#define K_F66 K(KT_FN,75)
#define K_F67 K(KT_FN,76)
#define K_F68 K(KT_FN,77)
#define K_F69 K(KT_FN,78)
#define K_F70 K(KT_FN,79)
#define K_F71 K(KT_FN,80)
#define K_F72 K(KT_FN,81)
#define K_F73 K(KT_FN,82)
#define K_F74 K(KT_FN,83)
#define K_F75 K(KT_FN,84)
#define K_F76 K(KT_FN,85)
#define K_F77 K(KT_FN,86)
#define K_F78 K(KT_FN,87)
#define K_F79 K(KT_FN,88)
#define K_F80 K(KT_FN,89)
#define K_F81 K(KT_FN,90)
#define K_F82 K(KT_FN,91)
#define K_F83 K(KT_FN,92)
#define K_F84 K(KT_FN,93)
#define K_F85 K(KT_FN,94)
#define K_F86 K(KT_FN,95)
#define K_F87 K(KT_FN,96)
#define K_F88 K(KT_FN,97)
#define K_F89 K(KT_FN,98)
#define K_F90 K(KT_FN,99)
#define K_F91 K(KT_FN,100)
#define K_F92 K(KT_FN,101)
#define K_F93 K(KT_FN,102)
#define K_F94 K(KT_FN,103)
#define K_F95 K(KT_FN,104)
#define K_F96 K(KT_FN,105)
#define K_F97 K(KT_FN,106)
#define K_F98 K(KT_FN,107)
#define K_F99 K(KT_FN,108)
#define K_F100 K(KT_FN,109)
#define K_F101 K(KT_FN,110)
#define K_F102 K(KT_FN,111)
#define K_F103 K(KT_FN,112)
#define K_F104 K(KT_FN,113)
#define K_F105 K(KT_FN,114)
#define K_F106 K(KT_FN,115)
#define K_F107 K(KT_FN,116)
#define K_F108 K(KT_FN,117)
#define K_F109 K(KT_FN,118)
#define K_F110 K(KT_FN,119)
#define K_F111 K(KT_FN,120)
#define K_F112 K(KT_FN,121)
#define K_F113 K(KT_FN,122)
#define K_F114 K(KT_FN,123)
#define K_F115 K(KT_FN,124)
#define K_F116 K(KT_FN,125)
#define K_F117 K(KT_FN,126)
#define K_F118 K(KT_FN,127)
#define K_F119 K(KT_FN,128)
#define K_F120 K(KT_FN,129)
#define K_F121 K(KT_FN,130)
#define K_F122 K(KT_FN,131)
#define K_F123 K(KT_FN,132)
#define K_F124 K(KT_FN,133)
#define K_F125 K(KT_FN,134)
#define K_F126 K(KT_FN,135)
#define K_F127 K(KT_FN,136)
#define K_F128 K(KT_FN,137)
#define K_F129 K(KT_FN,138)
#define K_F130 K(KT_FN,139)
#define K_F131 K(KT_FN,140)
#define K_F132 K(KT_FN,141)
#define K_F133 K(KT_FN,142)
#define K_F134 K(KT_FN,143)
#define K_F135 K(KT_FN,144)
#define K_F136 K(KT_FN,145)
#define K_F137 K(KT_FN,146)
#define K_F138 K(KT_FN,147)
#define K_F139 K(KT_FN,148)
#define K_F140 K(KT_FN,149)
#define K_F141 K(KT_FN,150)
#define K_F142 K(KT_FN,151)
#define K_F143 K(KT_FN,152)
#define K_F144 K(KT_FN,153)
#define K_F145 K(KT_FN,154)
#define K_F146 K(KT_FN,155)
#define K_F147 K(KT_FN,156)
#define K_F148 K(KT_FN,157)
#define K_F149 K(KT_FN,158)
#define K_F150 K(KT_FN,159)
#define K_F151 K(KT_FN,160)
#define K_F152 K(KT_FN,161)
#define K_F153 K(KT_FN,162)
#define K_F154 K(KT_FN,163)
#define K_F155 K(KT_FN,164)
#define K_F156 K(KT_FN,165)
#define K_F157 K(KT_FN,166)
#define K_F158 K(KT_FN,167)
#define K_F159 K(KT_FN,168)
#define K_F160 K(KT_FN,169)
#define K_F161 K(KT_FN,170)
#define K_F162 K(KT_FN,171)
#define K_F163 K(KT_FN,172)
#define K_F164 K(KT_FN,173)
#define K_F165 K(KT_FN,174)
#define K_F166 K(KT_FN,175)
#define K_F167 K(KT_FN,176)
#define K_F168 K(KT_FN,177)
#define K_F169 K(KT_FN,178)
#define K_F170 K(KT_FN,179)
#define K_F171 K(KT_FN,180)
#define K_F172 K(KT_FN,181)
#define K_F173 K(KT_FN,182)
#define K_F174 K(KT_FN,183)
#define K_F175 K(KT_FN,184)
#define K_F176 K(KT_FN,185)
#define K_F177 K(KT_FN,186)
#define K_F178 K(KT_FN,187)
#define K_F179 K(KT_FN,188)
#define K_F180 K(KT_FN,189)
#define K_F181 K(KT_FN,190)
#define K_F182 K(KT_FN,191)
#define K_F183 K(KT_FN,192)
#define K_F184 K(KT_FN,193)
#define K_F185 K(KT_FN,194)
#define K_F186 K(KT_FN,195)
#define K_F187 K(KT_FN,196)
#define K_F188 K(KT_FN,197)
#define K_F189 K(KT_FN,198)
#define K_F190 K(KT_FN,199)
#define K_F191 K(KT_FN,200)
#define K_F192 K(KT_FN,201)
#define K_F193 K(KT_FN,202)
#define K_F194 K(KT_FN,203)
#define K_F195 K(KT_FN,204)
#define K_F196 K(KT_FN,205)
#define K_F197 K(KT_FN,206)
#define K_F198 K(KT_FN,207)
#define K_F199 K(KT_FN,208)
#define K_F200 K(KT_FN,209)
#define K_F201 K(KT_FN,210)
#define K_F202 K(KT_FN,211)
#define K_F203 K(KT_FN,212)
#define K_F204 K(KT_FN,213)
#define K_F205 K(KT_FN,214)
#define K_F206 K(KT_FN,215)
#define K_F207 K(KT_FN,216)
#define K_F208 K(KT_FN,217)
#define K_F209 K(KT_FN,218)
#define K_F210 K(KT_FN,219)
#define K_F211 K(KT_FN,220)
#define K_F212 K(KT_FN,221)
#define K_F213 K(KT_FN,222)
#define K_F214 K(KT_FN,223)
#define K_F215 K(KT_FN,224)
#define K_F216 K(KT_FN,225)
#define K_F217 K(KT_FN,226)
#define K_F218 K(KT_FN,227)
#define K_F219 K(KT_FN,228)
#define K_F220 K(KT_FN,229)
#define K_F221 K(KT_FN,230)
#define K_F222 K(KT_FN,231)
#define K_F223 K(KT_FN,232)
#define K_F224 K(KT_FN,233)
#define K_F225 K(KT_FN,234)
#define K_F226 K(KT_FN,235)
#define K_F227 K(KT_FN,236)
#define K_F228 K(KT_FN,237)
#define K_F229 K(KT_FN,238)
#define K_F230 K(KT_FN,239)
#define K_F231 K(KT_FN,240)
#define K_F232 K(KT_FN,241)
#define K_F233 K(KT_FN,242)
#define K_F234 K(KT_FN,243)
#define K_F235 K(KT_FN,244)
#define K_F236 K(KT_FN,245)
#define K_F237 K(KT_FN,246)
#define K_F238 K(KT_FN,247)
#define K_F239 K(KT_FN,248)
#define K_F240 K(KT_FN,249)
#define K_F241 K(KT_FN,250)
#define K_F242 K(KT_FN,251)
#define K_F243 K(KT_FN,252)
#define K_F244 K(KT_FN,253)
#define K_F245 K(KT_FN,254)
#define K_UNDO K(KT_FN,255)
#define K_HOLE K(KT_SPEC,0)
#define K_ENTER K(KT_SPEC,1)
#define K_SH_REGS K(KT_SPEC,2)
#define K_SH_MEM K(KT_SPEC,3)
#define K_SH_STAT K(KT_SPEC,4)
#define K_BREAK K(KT_SPEC,5)
#define K_CONS K(KT_SPEC,6)
#define K_CAPS K(KT_SPEC,7)
#define K_NUM K(KT_SPEC,8)
#define K_HOLD K(KT_SPEC,9)
#define K_SCROLLFORW K(KT_SPEC,10)
#define K_SCROLLBACK K(KT_SPEC,11)
#define K_BOOT K(KT_SPEC,12)
#define K_CAPSON K(KT_SPEC,13)
#define K_COMPOSE K(KT_SPEC,14)
#define K_SAK K(KT_SPEC,15)
#define K_DECRCONSOLE K(KT_SPEC,16)
#define K_INCRCONSOLE K(KT_SPEC,17)
#define K_SPAWNCONSOLE K(KT_SPEC,18)
#define K_BARENUMLOCK K(KT_SPEC,19)
#define K_ALLOCATED K(KT_SPEC,126) /* dynamically allocated keymap */
#define K_NOSUCHMAP K(KT_SPEC,127) /* returned by KDGKBENT */
#define K_P0 K(KT_PAD,0)
#define K_P1 K(KT_PAD,1)
#define K_P2 K(KT_PAD,2)
#define K_P3 K(KT_PAD,3)
#define K_P4 K(KT_PAD,4)
#define K_P5 K(KT_PAD,5)
#define K_P6 K(KT_PAD,6)
#define K_P7 K(KT_PAD,7)
#define K_P8 K(KT_PAD,8)
#define K_P9 K(KT_PAD,9)
#define K_PPLUS K(KT_PAD,10) /* key-pad plus */
#define K_PMINUS K(KT_PAD,11) /* key-pad minus */
#define K_PSTAR K(KT_PAD,12) /* key-pad asterisk (star) */
#define K_PSLASH K(KT_PAD,13) /* key-pad slash */
#define K_PENTER K(KT_PAD,14) /* key-pad enter */
#define K_PCOMMA K(KT_PAD,15) /* key-pad comma: kludge... */
#define K_PDOT K(KT_PAD,16) /* key-pad dot (period): kludge... */
#define K_PPLUSMINUS K(KT_PAD,17) /* key-pad plus/minus */
#define K_PPARENL K(KT_PAD,18) /* key-pad left parenthesis */
#define K_PPARENR K(KT_PAD,19) /* key-pad right parenthesis */
#define NR_PAD 20
#define K_DGRAVE K(KT_DEAD,0)
#define K_DACUTE K(KT_DEAD,1)
#define K_DCIRCM K(KT_DEAD,2)
#define K_DTILDE K(KT_DEAD,3)
#define K_DDIERE K(KT_DEAD,4)
#define K_DCEDIL K(KT_DEAD,5)
#define NR_DEAD 6
#define K_DOWN K(KT_CUR,0)
#define K_LEFT K(KT_CUR,1)
#define K_RIGHT K(KT_CUR,2)
#define K_UP K(KT_CUR,3)
#define K_SHIFT K(KT_SHIFT,KG_SHIFT)
#define K_CTRL K(KT_SHIFT,KG_CTRL)
#define K_ALT K(KT_SHIFT,KG_ALT)
#define K_ALTGR K(KT_SHIFT,KG_ALTGR)
#define K_SHIFTL K(KT_SHIFT,KG_SHIFTL)
#define K_SHIFTR K(KT_SHIFT,KG_SHIFTR)
#define K_CTRLL K(KT_SHIFT,KG_CTRLL)
#define K_CTRLR K(KT_SHIFT,KG_CTRLR)
#define K_CAPSSHIFT K(KT_SHIFT,KG_CAPSSHIFT)
#define K_ASC0 K(KT_ASCII,0)
#define K_ASC1 K(KT_ASCII,1)
#define K_ASC2 K(KT_ASCII,2)
#define K_ASC3 K(KT_ASCII,3)
#define K_ASC4 K(KT_ASCII,4)
#define K_ASC5 K(KT_ASCII,5)
#define K_ASC6 K(KT_ASCII,6)
#define K_ASC7 K(KT_ASCII,7)
#define K_ASC8 K(KT_ASCII,8)
#define K_ASC9 K(KT_ASCII,9)
#define K_HEX0 K(KT_ASCII,10)
#define K_HEX1 K(KT_ASCII,11)
#define K_HEX2 K(KT_ASCII,12)
#define K_HEX3 K(KT_ASCII,13)
#define K_HEX4 K(KT_ASCII,14)
#define K_HEX5 K(KT_ASCII,15)
#define K_HEX6 K(KT_ASCII,16)
#define K_HEX7 K(KT_ASCII,17)
#define K_HEX8 K(KT_ASCII,18)
#define K_HEX9 K(KT_ASCII,19)
#define K_HEXa K(KT_ASCII,20)
#define K_HEXb K(KT_ASCII,21)
#define K_HEXc K(KT_ASCII,22)
#define K_HEXd K(KT_ASCII,23)
#define K_HEXe K(KT_ASCII,24)
#define K_HEXf K(KT_ASCII,25)
#define NR_ASCII 26
#define K_SHIFTLOCK K(KT_LOCK,KG_SHIFT)
#define K_CTRLLOCK K(KT_LOCK,KG_CTRL)
#define K_ALTLOCK K(KT_LOCK,KG_ALT)
#define K_ALTGRLOCK K(KT_LOCK,KG_ALTGR)
#define K_SHIFTLLOCK K(KT_LOCK,KG_SHIFTL)
#define K_SHIFTRLOCK K(KT_LOCK,KG_SHIFTR)
#define K_CTRLLLOCK K(KT_LOCK,KG_CTRLL)
#define K_CTRLRLOCK K(KT_LOCK,KG_CTRLR)
#define K_CAPSSHIFTLOCK K(KT_LOCK,KG_CAPSSHIFT)
#define K_SHIFT_SLOCK K(KT_SLOCK,KG_SHIFT)
#define K_CTRL_SLOCK K(KT_SLOCK,KG_CTRL)
#define K_ALT_SLOCK K(KT_SLOCK,KG_ALT)
#define K_ALTGR_SLOCK K(KT_SLOCK,KG_ALTGR)
#define K_SHIFTL_SLOCK K(KT_SLOCK,KG_SHIFTL)
#define K_SHIFTR_SLOCK K(KT_SLOCK,KG_SHIFTR)
#define K_CTRLL_SLOCK K(KT_SLOCK,KG_CTRLL)
#define K_CTRLR_SLOCK K(KT_SLOCK,KG_CTRLR)
#define K_CAPSSHIFT_SLOCK K(KT_SLOCK,KG_CAPSSHIFT)
#define NR_LOCK 9
#define K_BRL_BLANK K(KT_BRL, 0)
#define K_BRL_DOT1 K(KT_BRL, 1)
#define K_BRL_DOT2 K(KT_BRL, 2)
#define K_BRL_DOT3 K(KT_BRL, 3)
#define K_BRL_DOT4 K(KT_BRL, 4)
#define K_BRL_DOT5 K(KT_BRL, 5)
#define K_BRL_DOT6 K(KT_BRL, 6)
#define K_BRL_DOT7 K(KT_BRL, 7)
#define K_BRL_DOT8 K(KT_BRL, 8)
#define K_BRL_DOT9 K(KT_BRL, 9)
#define K_BRL_DOT10 K(KT_BRL, 10)
#define NR_BRL 11
#define MAX_DIACR 256
#endif
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