include/linux/kbd_kern.h

   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 int shift_state;
  11
  12 extern char *func_table[MAX_NR_FUNC];
  13 extern char func_buf[];
  14 extern char *funcbufptr;
  15 extern 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  */
  26 struct 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:2;        /* one 2-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
  59         unsigned char modeflags:5;
  60 #define VC_APPLIC       0       /* application key mode */
  61 #define VC_CKMODE       1       /* cursor key mode */
  62 #define VC_REPEAT       2       /* keyboard repeat */
  63 #define VC_CRLF         3       /* 0 - enter sends CR, 1 - enter sends CRLF */
  64 #define VC_META         4       /* 0 - meta, 1 - meta=prefix with ESC */
  65 };
  66
  67 extern struct kbd_struct kbd_table[];
  68
  69 extern int kbd_init(void);
  70
  71 extern unsigned char getledstate(void);
  72 extern void setledstate(struct kbd_struct *kbd, unsigned int led);
  73
  74 extern int do_poke_blanked_console;
  75
  76 extern void (*kbd_ledfunc)(unsigned int led);
  77
  78 extern void set_console(int nr);
  79 extern void schedule_console_callback(void);
  80
  81 static inline void set_leds(void)
  82 {
  83         tasklet_schedule(&keyboard_tasklet);
  84 }
  85
  86 static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
  87 {
  88         return ((kbd->modeflags >> flag) & 1);
  89 }
  90
  91 static inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
  92 {
  93         return ((kbd->ledflagstate >> flag) & 1);
  94 }
  95
  96 static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
  97 {
  98         kbd->modeflags |= 1 << flag;
  99 }
 100
 101 static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
 102 {
 103         kbd->ledflagstate |= 1 << flag;
 104 }
 105
 106 static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 107 {
 108         kbd->modeflags &= ~(1 << flag);
 109 }
 110
 111 static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
 112 {
 113         kbd->ledflagstate &= ~(1 << flag);
 114 }
 115
 116 static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
 117 {
 118         kbd->lockstate ^= 1 << flag;
 119 }
 120
 121 static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
 122 {
 123         kbd->slockstate ^= 1 << flag;
 124 }
 125
 126 static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 127 {
 128         kbd->modeflags ^= 1 << flag;
 129 }
 130
 131 static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
 132 {
 133         kbd->ledflagstate ^= 1 << flag;
 134 }
 135
 136 #define U(x) ((x) ^ 0xf000)
 137
 138 /* keyboard.c */
 139
 140 struct console;
 141
 142 int getkeycode(unsigned int scancode);
 143 int setkeycode(unsigned int scancode, unsigned int keycode);
 144 void compute_shiftstate(void);
 145
 146 /* defkeymap.c */
 147
 148 extern unsigned int keymap_count;
 149
 150 /* console.c */
 151
 152 static inline void con_schedule_flip(struct tty_struct *t)
 153 {
 154         unsigned long flags;
 155         spin_lock_irqsave(&t->buf.lock, flags);
 156         if (t->buf.tail != NULL) {
 157                 t->buf.tail->active = 0;
 158                 t->buf.tail->commit = t->buf.tail->used;
 159         }
 160         spin_unlock_irqrestore(&t->buf.lock, flags);
 161         schedule_work(&t->buf.work);
 162 }
 163
 164 #endif