/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_KD_H
#define _UAPI_LINUX_KD_H
#include <linux/types.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* 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* 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* 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 */
