kbd_kern.h

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#ifndef _KBD_KERN_H
#define _KBD_KERN_H

#include <linux/tty.h>
#include <linux/interrupt.h>
#include <linux/keyboard.h>

extern struct tasklet_struct keyboard_tasklet;

extern char *func_table[MAX_NR_FUNC];
extern char func_buf[];
extern char *funcbufptr;
extern int funcbufsize, funcbufleft;

/*
 * kbd->xxx contains the VC-local things (flag settings etc..)
 *
 * Note: externally visible are LED_SCR, LED_NUM, LED_CAP defined in kd.h
 *       The code in KDGETLED / KDSETLED depends on the internal and
 *       external order being the same.
 *
 * Note: lockstate is used as index in the array key_map.
 */
struct kbd_struct {

    unsigned char lockstate;
/* 8 modifiers - the names do not have any meaning at all;
   they can be associated to arbitrarily chosen keys */
#define VC_SHIFTLOCK    KG_SHIFT    /* shift lock mode */
#define VC_ALTGRLOCK    KG_ALTGR    /* altgr lock mode */
#define VC_CTRLLOCK KG_CTRL     /* control lock mode */
#define VC_ALTLOCK  KG_ALT      /* alt lock mode */
#define VC_SHIFTLLOCK   KG_SHIFTL   /* shiftl lock mode */
#define VC_SHIFTRLOCK   KG_SHIFTR   /* shiftr lock mode */
#define VC_CTRLLLOCK    KG_CTRLL    /* ctrll lock mode */
#define VC_CTRLRLOCK    KG_CTRLR    /* ctrlr lock mode */
    unsigned char slockstate;   /* for `sticky' Shift, Ctrl, etc. */

    unsigned char ledmode:2;    /* one 2-bit value */
#define LED_SHOW_FLAGS 0        /* traditional state */
#define LED_SHOW_IOCTL 1        /* only change leds upon ioctl */
#define LED_SHOW_MEM 2          /* `heartbeat': peek into memory */

    unsigned char ledflagstate:4;   /* flags, not lights */
    unsigned char default_ledflagstate:4;
#define VC_SCROLLOCK    0   /* scroll-lock mode */
#define VC_NUMLOCK  1   /* numeric lock mode */
#define VC_CAPSLOCK 2   /* capslock mode */
#define VC_KANALOCK 3   /* kanalock mode */

    unsigned char kbdmode:3;    /* one 3-bit value */
#define VC_XLATE    0   /* translate keycodes using keymap */
#define VC_MEDIUMRAW    1   /* medium raw (keycode) mode */
#define VC_RAW      2   /* raw (scancode) mode */
#define VC_UNICODE  3   /* Unicode mode */
#define VC_OFF      4   /* disabled mode */

    unsigned char modeflags:5;
#define VC_APPLIC   0   /* application key mode */
#define VC_CKMODE   1   /* cursor key mode */
#define VC_REPEAT   2   /* keyboard repeat */
#define VC_CRLF     3   /* 0 - enter sends CR, 1 - enter sends CRLF */
#define VC_META     4   /* 0 - meta, 1 - meta=prefix with ESC */
};

extern int kbd_init(void);

extern void setledstate(struct kbd_struct *kbd, unsigned int led);

extern int do_poke_blanked_console;

extern void (*kbd_ledfunc)(unsigned int led);

extern int set_console(int nr);
extern void schedule_console_callback(void);

/* FIXME: review locking for vt.c callers */
static inline void set_leds(void)
{
    tasklet_schedule(&keyboard_tasklet);
}

static inline int vc_kbd_mode(struct kbd_struct * kbd, int flag)
{
    return ((kbd->modeflags >> flag) & 1);
}

static inline int vc_kbd_led(struct kbd_struct * kbd, int flag)
{
    return ((kbd->ledflagstate >> flag) & 1);
}

static inline void set_vc_kbd_mode(struct kbd_struct * kbd, int flag)
{
    kbd->modeflags |= 1 << flag;
}

static inline void set_vc_kbd_led(struct kbd_struct * kbd, int flag)
{
    kbd->ledflagstate |= 1 << flag;
}

static inline void clr_vc_kbd_mode(struct kbd_struct * kbd, int flag)
{
    kbd->modeflags &= ~(1 << flag);
}

static inline void clr_vc_kbd_led(struct kbd_struct * kbd, int flag)
{
    kbd->ledflagstate &= ~(1 << flag);
}

static inline void chg_vc_kbd_lock(struct kbd_struct * kbd, int flag)
{
    kbd->lockstate ^= 1 << flag;
}

static inline void chg_vc_kbd_slock(struct kbd_struct * kbd, int flag)
{
    kbd->slockstate ^= 1 << flag;
}

static inline void chg_vc_kbd_mode(struct kbd_struct * kbd, int flag)
{
    kbd->modeflags ^= 1 << flag;
}

static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
{
    kbd->ledflagstate ^= 1 << flag;
}

#define U(x) ((x) ^ 0xf000)

#define BRL_UC_ROW 0x2800

/* keyboard.c */

struct console;

void compute_shiftstate(void);

/* defkeymap.c */

extern unsigned int keymap_count;

#endif