LXR linux/include/linux/kbd

   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 int shift_state;
  11
  12extern char *func_table[MAX_NR_FUNC];
  13extern char func_buf[];
  14extern char *funcbufptr;
  15extern int funcbufsize, funcbufleft;
  16
  17/*
  18 * kbd->xxx contains the VC-local things (flag settings etc..)
  19 *
  20 * Note: externally visible are LED_SCR, LED_NUM, LED_CAP defined in kd.h
  21 *       The code in KDGETLED / KDSETLED depends on the internal and
  22 *       external order being the same.
  23 *
  24 * Note: lockstate is used as index in the array key_map.
  25 */
  26struct kbd_struct {
  27
  28        unsigned char lockstate;
  29/* 8 modifiers - the names do not have any meaning at all;
  30   they can be associated to arbitrarily chosen keys */
  31#define VC_SHIFTLOCK    KG_SHIFT        /* shift lock mode */
  32#define VC_ALTGRLOCK    KG_ALTGR        /* altgr lock mode */
  33#define VC_CTRLLOCK     KG_CTRL         /* control lock mode */
  34#define VC_ALTLOCK      KG_ALT          /* alt lock mode */
  35#define VC_SHIFTLLOCK   KG_SHIFTL       /* shiftl lock mode */
  36#define VC_SHIFTRLOCK   KG_SHIFTR       /* shiftr lock mode */
  37#define VC_CTRLLLOCK    KG_CTRLL        /* ctrll lock mode */
  38#define VC_CTRLRLOCK    KG_CTRLR        /* ctrlr lock mode */
  39        unsigned char slockstate;       /* for `sticky' Shift, Ctrl, etc. */
  40
  41        unsigned char ledmode:2;        /* one 2-bit value */
  42#define LED_SHOW_FLAGS 0        /* traditional state */
  43#define LED_SHOW_IOCTL 1        /* only change leds upon ioctl */
  44#define LED_SHOW_MEM 2          /* `heartbeat': peek into memory */
  45
  46        unsigned char ledflagstate:4;   /* flags, not lights */
  47        unsigned char default_ledflagstate:4;
  48#define VC_SCROLLOCK    0       /* scroll-lock mode */
  49#define VC_NUMLOCK      1       /* numeric lock mode */
  50#define VC_CAPSLOCK     2       /* capslock mode */
  51#define VC_KANALOCK     3       /* kanalock mode */
  52
  53        unsigned char kbdmode:3;        /* one 3-bit value */
  54#define VC_XLATE        0       /* translate keycodes using keymap */
  55#define VC_MEDIUMRAW    1       /* medium raw (keycode) mode */
  56#define VC_RAW          2       /* raw (scancode) mode */
  57#define VC_UNICODE      3       /* Unicode mode */
  58#define VC_OFF          4       /* disabled mode */
  59
  60        unsigned char modeflags:5;
  61#define VC_APPLIC       0       /* application key mode */
  62#define VC_CKMODE       1       /* cursor key mode */
  63#define VC_REPEAT       2       /* keyboard repeat */
  64#define VC_CRLF         3       /* 0 - enter sends CR, 1 - enter sends CRLF */
  65#define VC_META         4       /* 0 - meta, 1 - meta=prefix with ESC */
  66};
  67
  68extern struct kbd_struct kbd_table[];
  69
  70extern int kbd_init(void);
  71
  72extern unsigned char getledstate(void);
  73extern void setledstate(struct kbd_struct *kbd, unsigned int led);
  74
  75extern int do_poke_blanked_console;
  76
  77extern void (*kbd_ledfunc)(unsigned int led);
  78
  79extern int set_console(int nr);
  80extern void schedule_console_callback(void);
  81
  82static inline void set_leds(void)
  83{
  84        tasklet_schedule(&keyboard_tasklet);
  85}
  86
  87static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
  88{
  89        return ((kbd->modeflags >> flag) & 1);
  90}
  91
  92static inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
  93{
  94        return ((kbd->ledflagstate >> flag) & 1);
  95}
  96
  97static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
  98{
  99        kbd->modeflags |= 1 << flag;
 100}
 101
 102static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
 103{
 104        kbd->ledflagstate |= 1 << flag;
 105}
 106
 107static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 108{
 109        kbd->modeflags &= ~(1 << flag);
 110}
 111
 112static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
 113{
 114        kbd->ledflagstate &= ~(1 << flag);
 115}
 116
 117static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
 118{
 119        kbd->lockstate ^= 1 << flag;
 120}
 121
 122static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
 123{
 124        kbd->slockstate ^= 1 << flag;
 125}
 126
 127static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 128{
 129        kbd->modeflags ^= 1 << flag;
 130}
 131
 132static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
 133{
 134        kbd->ledflagstate ^= 1 << flag;
 135}
 136
 137#define U(x) ((x) ^ 0xf000)
 138
 139#define BRL_UC_ROW 0x2800
 140
 141/* keyboard.c */
 142
 143struct console;
 144
 145int getkeycode(unsigned int scancode);
 146int setkeycode(unsigned int scancode, unsigned int keycode);
 147void compute_shiftstate(void);
 148
 149/* defkeymap.c */
 150
 151extern unsigned int keymap_count;
 152
 153/* console.c */
 154
 155static inline void con_schedule_flip(struct tty_struct *t)
 156{
 157        unsigned long flags;
 158        spin_lock_irqsave(&t->buf.lock, flags);
 159        if (t->buf.tail != NULL)
 160                t->buf.tail->commit = t->buf.tail->used;
 161        spin_unlock_irqrestore(&t->buf.lock, flags);
 162        schedule_work(&t->buf.work);
 163}
 164
 165#endif
 166