cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/linux/kd.h

#ifndef _UAPI_LINUX_KD_H

#define _UAPI_LINUX_KD_H
#include <linux/types.h>
#include <linux/compiler.h>

/* 0x4B is 'K', to avoid collision with termios and vt */


#define GIO_FONT	0x4B60	
/* gets font in expanded form */

#define PIO_FONT	0x4B61	
/* use font in expanded form */


#define GIO_FONTX	0x4B6B	
/* get font using struct consolefontdesc */

#define PIO_FONTX	0x4B6C	
/* set font using struct consolefontdesc */

struct consolefontdesc {
	
unsigned short charcount;	/* characters in font (256 or 512) */
	
unsigned short charheight;	/* scan lines per character (1-32) */
	
char __user *chardata;		/* font data in expanded form */
};


#define PIO_FONTRESET   0x4B6D	
/* reset to default font */


#define GIO_CMAP	0x4B70	
/* gets colour palette on VGA+ */

#define PIO_CMAP	0x4B71	
/* sets colour palette on VGA+ */


#define KIOCSOUND	0x4B2F	
/* start sound generation (0 for off) */

#define KDMKTONE	0x4B30	
/* generate tone */


#define KDGETLED	0x4B31	
/* return current led state */

#define KDSETLED	0x4B32	
/* set led state [lights, not flags] */

#define 	LED_SCR		0x01	
/* scroll lock led */

#define 	LED_NUM		0x02	
/* num lock led */

#define 	LED_CAP		0x04	
/* caps lock led */


#define KDGKBTYPE	0x4B33	
/* get keyboard type */

#define 	KB_84		0x01

#define 	KB_101		0x02 	
/* this is what we always answer */

#define 	KB_OTHER	0x03


#define KDADDIO		0x4B34	
/* add i/o port as valid */

#define KDDELIO		0x4B35	
/* del i/o port as valid */

#define KDENABIO	0x4B36	
/* enable i/o to video board */

#define KDDISABIO	0x4B37	
/* disable i/o to video board */


#define KDSETMODE	0x4B3A	
/* set text/graphics mode */

#define		KD_TEXT		0x00

#define		KD_GRAPHICS	0x01

#define		KD_TEXT0	0x02	
/* obsolete */

#define		KD_TEXT1	0x03	
/* obsolete */

#define KDGETMODE	0x4B3B	
/* get current mode */


#define KDMAPDISP	0x4B3C	
/* map display into address space */

#define KDUNMAPDISP	0x4B3D	
/* unmap display from address space */


typedef char scrnmap_t;

#define		E_TABSZ		256

#define GIO_SCRNMAP	0x4B40	
/* get screen mapping from kernel */

#define PIO_SCRNMAP	0x4B41	
/* put screen mapping table in kernel */

#define GIO_UNISCRNMAP  0x4B69	
/* get full Unicode screen mapping */

#define PIO_UNISCRNMAP  0x4B6A  
/* set full Unicode screen mapping */


#define GIO_UNIMAP	0x4B66	
/* get unicode-to-font mapping from kernel */

struct unipair {
	
unsigned short unicode;
	
unsigned short fontpos;
};

struct unimapdesc {
	
unsigned short entry_ct;
	
struct unipair __user *entries;
};

#define PIO_UNIMAP	0x4B67	
/* put unicode-to-font mapping in kernel */

#define PIO_UNIMAPCLR	0x4B68	
/* clear table, possibly advise hash algorithm */

struct unimapinit {
	
unsigned short advised_hashsize;  /* 0 if no opinion */
	
unsigned short advised_hashstep;  /* 0 if no opinion */
	
unsigned short advised_hashlevel; /* 0 if no opinion */
};


#define UNI_DIRECT_BASE 0xF000	
/* start of Direct Font Region */

#define UNI_DIRECT_MASK 0x01FF	
/* Direct Font Region bitmask */


#define		K_RAW		0x00

#define		K_XLATE		0x01

#define		K_MEDIUMRAW	0x02

#define		K_UNICODE	0x03

#define		K_OFF		0x04

#define KDGKBMODE	0x4B44	
/* gets current keyboard mode */

#define KDSKBMODE	0x4B45	
/* sets current keyboard mode */


#define		K_METABIT	0x03

#define		K_ESCPREFIX	0x04

#define KDGKBMETA	0x4B62	
/* gets meta key handling mode */

#define KDSKBMETA	0x4B63	
/* sets meta key handling mode */


#define		K_SCROLLLOCK	0x01

#define		K_NUMLOCK	0x02

#define		K_CAPSLOCK	0x04

#define	KDGKBLED	0x4B64	
/* get led flags (not lights) */

#define	KDSKBLED	0x4B65	
/* set led flags (not lights) */


struct kbentry {
	
unsigned char kb_table;
	
unsigned char kb_index;
	
unsigned short kb_value;
};

#define		K_NORMTAB	0x00

#define		K_SHIFTTAB	0x01

#define		K_ALTTAB	0x02

#define		K_ALTSHIFTTAB	0x03


#define KDGKBENT	0x4B46	
/* gets one entry in translation table */

#define KDSKBENT	0x4B47	
/* sets one entry in translation table */


struct kbsentry {
	
unsigned char kb_func;
	
unsigned char kb_string[512];
};

#define KDGKBSENT	0x4B48	
/* gets one function key string entry */

#define KDSKBSENT	0x4B49	
/* sets one function key string entry */


struct kbdiacr {
        


unsigned char diacr, base, result;
};

struct kbdiacrs {
        
unsigned int kb_cnt;    /* number of entries in following array */
	
struct kbdiacr kbdiacr[256];    /* MAX_DIACR from keyboard.h */
};

#define KDGKBDIACR      0x4B4A  
/* read kernel accent table */

#define KDSKBDIACR      0x4B4B  
/* write kernel accent table */


struct kbdiacruc {
	


unsigned int diacr, base, result;
};

struct kbdiacrsuc {
        
unsigned int kb_cnt;    /* number of entries in following array */
	
struct kbdiacruc kbdiacruc[256];    /* MAX_DIACR from keyboard.h */
};

#define KDGKBDIACRUC    0x4BFA  
/* read kernel accent table - UCS */

#define KDSKBDIACRUC    0x4BFB  
/* write kernel accent table - UCS */


struct kbkeycode {
	

unsigned int scancode, keycode;
};

#define KDGETKEYCODE	0x4B4C	
/* read kernel keycode table entry */

#define KDSETKEYCODE	0x4B4D	
/* write kernel keycode table entry */


#define KDSIGACCEPT	0x4B4E	
/* accept kbd generated signals */


struct kbd_repeat {
	
int delay;	/* in msec; <= 0: don't change */
	
int period;	/* in msec; <= 0: don't change */
			/* earlier this field was misnamed "rate" */
};


#define KDKBDREP        0x4B52  
/* set keyboard delay/repeat rate;
                                 * actually used values are returned */


#define KDFONTOP	0x4B72	
/* font operations */


struct console_font_op {
	
unsigned int op;	/* operation code KD_FONT_OP_* */
	
unsigned int flags;	/* KD_FONT_FLAG_* */
	

unsigned int width, height;	/* font size */
	
unsigned int charcount;
	
unsigned char __user *data;	/* font data with height fixed to 32 */
};


struct console_font {
	

unsigned int width, height;	/* font size */
	
unsigned int charcount;
	
unsigned char *data;	/* font data with height fixed to 32 */
};


#define KD_FONT_OP_SET		0	
/* Set font */

#define KD_FONT_OP_GET		1	
/* Get font */

#define KD_FONT_OP_SET_DEFAULT	2	
/* Set font to default, data points to name / NULL */

#define KD_FONT_OP_COPY		3	
/* Copy from another console */


#define KD_FONT_FLAG_DONT_RECALC 	1	
/* Don't recalculate hw charcell size [compat] */

/* note: 0x4B00-0x4B4E all have had a value at some time;
   don't reuse for the time being */
/* note: 0x4B60-0x4B6D, 0x4B70-0x4B72 used above */

#endif /* _UAPI_LINUX_KD_H */

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