include/linux/kbd_kern.h

   1 #ifndef _KBD_KERN_H
   2 #define _KBD_KERN_H
   3
   4 #include <linux/interrupt.h>
   5 #include <linux/keyboard.h>
   6
   7 extern struct tasklet_struct keyboard_tasklet;
   8
   9 extern int shift_state;
  10
  11 extern char *func_table[MAX_NR_FUNC];
  12 extern char func_buf[];
  13 extern char *funcbufptr;
  14 extern int funcbufsize, funcbufleft;
  15
  16 /*
  17  * kbd->xxx contains the VC-local things (flag settings etc..)
  18  *
  19  * Note: externally visible are LED_SCR, LED_NUM, LED_CAP defined in kd.h
  20  *       The code in KDGETLED / KDSETLED depends on the internal and
  21  *       external order being the same.
  22  *
  23  * Note: lockstate is used as index in the array key_map.
  24  */
  25 struct kbd_struct {
  26
  27         unsigned char lockstate;
  28 /* 8 modifiers - the names do not have any meaning at all;
  29    they can be associated to arbitrarily chosen keys */
  30 #define VC_SHIFTLOCK    KG_SHIFT        /* shift lock mode */
  31 #define VC_ALTGRLOCK    KG_ALTGR        /* altgr lock mode */
  32 #define VC_CTRLLOCK     KG_CTRL         /* control lock mode */
  33 #define VC_ALTLOCK      KG_ALT          /* alt lock mode */
  34 #define VC_SHIFTLLOCK   KG_SHIFTL       /* shiftl lock mode */
  35 #define VC_SHIFTRLOCK   KG_SHIFTR       /* shiftr lock mode */
  36 #define VC_CTRLLLOCK    KG_CTRLL        /* ctrll lock mode */
  37 #define VC_CTRLRLOCK    KG_CTRLR        /* ctrlr lock mode */
  38         unsigned char slockstate;       /* for `sticky' Shift, Ctrl, etc. */
  39
  40         unsigned char ledmode:2;        /* one 2-bit value */
  41 #define LED_SHOW_FLAGS 0        /* traditional state */
  42 #define LED_SHOW_IOCTL 1        /* only change leds upon ioctl */
  43 #define LED_SHOW_MEM 2          /* `heartbeat': peek into memory */
  44
  45         unsigned char ledflagstate:3;   /* flags, not lights */
  46         unsigned char default_ledflagstate:3;
  47 #define VC_SCROLLOCK    0       /* scroll-lock mode */
  48 #define VC_NUMLOCK      1       /* numeric lock mode */
  49 #define VC_CAPSLOCK     2       /* capslock mode */
  50
  51         unsigned char kbdmode:2;        /* one 2-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
  57         unsigned char modeflags:5;
  58 #define VC_APPLIC       0       /* application key mode */
  59 #define VC_CKMODE       1       /* cursor key mode */
  60 #define VC_REPEAT       2       /* keyboard repeat */
  61 #define VC_CRLF         3       /* 0 - enter sends CR, 1 - enter sends CRLF */
  62 #define VC_META         4       /* 0 - meta, 1 - meta=prefix with ESC */
  63 };
  64
  65 extern struct kbd_struct kbd_table[];
  66
  67 extern int kbd_init(void);
  68
  69 extern unsigned char getledstate(void);
  70 extern void setledstate(struct kbd_struct *kbd, unsigned int led);
  71
  72 extern struct tasklet_struct console_tasklet;
  73
  74 extern int do_poke_blanked_console;
  75
  76 extern void (*kbd_ledfunc)(unsigned int led);
  77
  78 extern inline void show_console(void)
  79 {
  80         do_poke_blanked_console = 1;
  81         tasklet_schedule(&console_tasklet);
  82 }
  83
  84 extern inline void set_console(int nr)
  85 {
  86         want_console = nr;
  87         tasklet_schedule(&console_tasklet);
  88 }
  89
  90 extern inline void set_leds(void)
  91 {
  92         tasklet_schedule(&keyboard_tasklet);
  93 }
  94
  95 extern inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
  96 {
  97         return ((kbd->modeflags >> flag) & 1);
  98 }
  99
 100 extern inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
 101 {
 102         return ((kbd->ledflagstate >> flag) & 1);
 103 }
 104
 105 extern inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 106 {
 107         kbd->modeflags |= 1 << flag;
 108 }
 109
 110 extern inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
 111 {
 112         kbd->ledflagstate |= 1 << flag;
 113 }
 114
 115 extern inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 116 {
 117         kbd->modeflags &= ~(1 << flag);
 118 }
 119
 120 extern inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
 121 {
 122         kbd->ledflagstate &= ~(1 << flag);
 123 }
 124
 125 extern inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
 126 {
 127         kbd->lockstate ^= 1 << flag;
 128 }
 129
 130 extern inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
 131 {
 132         kbd->slockstate ^= 1 << flag;
 133 }
 134
 135 extern inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 136 {
 137         kbd->modeflags ^= 1 << flag;
 138 }
 139
 140 extern inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
 141 {
 142         kbd->ledflagstate ^= 1 << flag;
 143 }
 144
 145 #define U(x) ((x) ^ 0xf000)
 146
 147 /* keyboard.c */
 148
 149 struct console;
 150
 151 int getkeycode(unsigned int scancode);
 152 int setkeycode(unsigned int scancode, unsigned int keycode);
 153 void compute_shiftstate(void);
 154 int keyboard_wait_for_keypress(struct console *);
 155
 156 /* defkeymap.c */
 157
 158 extern unsigned int keymap_count;
 159
 160 /* console.c */
 161
 162 extern task_queue con_task_queue;
 163
 164 extern inline void con_schedule_flip(struct tty_struct *t)
 165 {
 166         queue_task(&t->flip.tqueue, &con_task_queue);
 167         tasklet_schedule(&console_tasklet);
 168 }
 169
 170 #endif