linux/include/linux/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
   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: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
  66extern int kbd_init(void);
  67
  68extern unsigned char getledstate(void);
  69extern void setledstate(struct kbd_struct *kbd, unsigned int led);
  70
  71extern int do_poke_blanked_console;
  72
  73extern void (*kbd_ledfunc)(unsigned int led);
  74
  75extern int set_console(int nr);
  76extern void schedule_console_callback(void);
  77
  78/* FIXME: review locking for vt.c callers */
  79static inline void set_leds(void)
  80{
  81        tasklet_schedule(&keyboard_tasklet);
  82}
  83
  84static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
  85{
  86        return ((kbd->modeflags >> flag) & 1);
  87}
  88
  89static inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
  90{
  91        return ((kbd->ledflagstate >> flag) & 1);
  92}
  93
  94static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
  95{
  96        kbd->modeflags |= 1 << flag;
  97}
  98
  99static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
 100{
 101        kbd->ledflagstate |= 1 << flag;
 102}
 103
 104static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 105{
 106        kbd->modeflags &= ~(1 << flag);
 107}
 108
 109static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
 110{
 111        kbd->ledflagstate &= ~(1 << flag);
 112}
 113
 114static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
 115{
 116        kbd->lockstate ^= 1 << flag;
 117}
 118
 119static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
 120{
 121        kbd->slockstate ^= 1 << flag;
 122}
 123
 124static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 125{
 126        kbd->modeflags ^= 1 << flag;
 127}
 128
 129static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
 130{
 131        kbd->ledflagstate ^= 1 << flag;
 132}
 133
 134#define U(x) ((x) ^ 0xf000)
 135
 136#define BRL_UC_ROW 0x2800
 137
 138/* keyboard.c */
 139
 140struct console;
 141
 142void compute_shiftstate(void);
 143
 144/* defkeymap.c */
 145
 146extern unsigned int keymap_count;
 147
 148/* console.c */
 149
 150static inline void con_schedule_flip(struct tty_struct *t)
 151{
 152        unsigned long flags;
 153        spin_lock_irqsave(&t->buf.lock, flags);
 154        if (t->buf.tail != NULL)
 155                t->buf.tail->commit = t->buf.tail->used;
 156        spin_unlock_irqrestore(&t->buf.lock, flags);
 157        schedule_work(&t->buf.work);
 158}
 159
 160#endif
 161
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