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 char *func_table[MAX_NR_FUNC];
  11 extern char func_buf[];
  12 extern char *funcbufptr;
  13 extern 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  */
  24 struct 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
  66 extern int kbd_init(void);
  67
  68 extern unsigned char getledstate(void);
  69 extern void setledstate(struct kbd_struct *kbd, unsigned int led);
  70
  71 extern int do_poke_blanked_console;
  72
  73 extern void (*kbd_ledfunc)(unsigned int led);
  74
  75 extern int set_console(int nr);
  76 extern void schedule_console_callback(void);
  77
  78 /* FIXME: review locking for vt.c callers */
  79 static inline void set_leds(void)
  80 {
  81         tasklet_schedule(&keyboard_tasklet);
  82 }
  83
  84 static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
  85 {
  86         return ((kbd->modeflags >> flag) & 1);
  87 }
  88
  89 static inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
  90 {
  91         return ((kbd->ledflagstate >> flag) & 1);
  92 }
  93
  94 static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
  95 {
  96         kbd->modeflags |= 1 << flag;
  97 }
  98
  99 static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
 100 {
 101         kbd->ledflagstate |= 1 << flag;
 102 }
 103
 104 static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 105 {
 106         kbd->modeflags &= ~(1 << flag);
 107 }
 108
 109 static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
 110 {
 111         kbd->ledflagstate &= ~(1 << flag);
 112 }
 113
 114 static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
 115 {
 116         kbd->lockstate ^= 1 << flag;
 117 }
 118
 119 static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
 120 {
 121         kbd->slockstate ^= 1 << flag;
 122 }
 123
 124 static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
 125 {
 126         kbd->modeflags ^= 1 << flag;
 127 }
 128
 129 static 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
 140 struct console;
 141
 142 void compute_shiftstate(void);
 143
 144 /* defkeymap.c */
 145
 146 extern unsigned int keymap_count;
 147
 148 /* console.c */
 149
 150 static 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