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![Samuel Thibault](/assets/img/avatar_default.png)
The KD_FONT_OP_SET/GET operations hardcode vpitch to be 32 pixels, which only dates from the old VGA hardware which as asserting this. Drivers such as fbcon however do not have such limitation, so this introduces KD_FONT_OP_SET/GET_TALL operations, which userland can try to use to avoid this limitation, thus opening the patch to >32 pixels font height. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Link: https://lore.kernel.org/r/20230119151935.013597162@ens-lyon.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
190 lines
6.4 KiB
C
190 lines
6.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_LINUX_KD_H
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#define _UAPI_LINUX_KD_H
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#include <linux/types.h>
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#include <linux/compiler.h>
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/* 0x4B is 'K', to avoid collision with termios and vt */
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#define GIO_FONT 0x4B60 /* gets font in expanded form */
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#define PIO_FONT 0x4B61 /* use font in expanded form */
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#define GIO_FONTX 0x4B6B /* get font using struct consolefontdesc */
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#define PIO_FONTX 0x4B6C /* set font using struct consolefontdesc */
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struct consolefontdesc {
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unsigned short charcount; /* characters in font (256 or 512) */
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unsigned short charheight; /* scan lines per character (1-32) */
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char __user *chardata; /* font data in expanded form */
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};
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#define PIO_FONTRESET 0x4B6D /* reset to default font */
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#define GIO_CMAP 0x4B70 /* gets colour palette on VGA+ */
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#define PIO_CMAP 0x4B71 /* sets colour palette on VGA+ */
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#define KIOCSOUND 0x4B2F /* start sound generation (0 for off) */
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#define KDMKTONE 0x4B30 /* generate tone */
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#define KDGETLED 0x4B31 /* return current led state */
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#define KDSETLED 0x4B32 /* set led state [lights, not flags] */
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#define LED_SCR 0x01 /* scroll lock led */
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#define LED_NUM 0x02 /* num lock led */
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#define LED_CAP 0x04 /* caps lock led */
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#define KDGKBTYPE 0x4B33 /* get keyboard type */
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#define KB_84 0x01
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#define KB_101 0x02 /* this is what we always answer */
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#define KB_OTHER 0x03
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#define KDADDIO 0x4B34 /* add i/o port as valid */
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#define KDDELIO 0x4B35 /* del i/o port as valid */
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#define KDENABIO 0x4B36 /* enable i/o to video board */
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#define KDDISABIO 0x4B37 /* disable i/o to video board */
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#define KDSETMODE 0x4B3A /* set text/graphics mode */
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#define KD_TEXT 0x00
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#define KD_GRAPHICS 0x01
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#define KD_TEXT0 0x02 /* obsolete */
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#define KD_TEXT1 0x03 /* obsolete */
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#define KDGETMODE 0x4B3B /* get current mode */
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#define KDMAPDISP 0x4B3C /* map display into address space */
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#define KDUNMAPDISP 0x4B3D /* unmap display from address space */
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typedef char scrnmap_t;
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#define E_TABSZ 256
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#define GIO_SCRNMAP 0x4B40 /* get screen mapping from kernel */
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#define PIO_SCRNMAP 0x4B41 /* put screen mapping table in kernel */
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#define GIO_UNISCRNMAP 0x4B69 /* get full Unicode screen mapping */
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#define PIO_UNISCRNMAP 0x4B6A /* set full Unicode screen mapping */
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#define GIO_UNIMAP 0x4B66 /* get unicode-to-font mapping from kernel */
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struct unipair {
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unsigned short unicode;
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unsigned short fontpos;
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};
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struct unimapdesc {
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unsigned short entry_ct;
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struct unipair __user *entries;
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};
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#define PIO_UNIMAP 0x4B67 /* put unicode-to-font mapping in kernel */
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#define PIO_UNIMAPCLR 0x4B68 /* clear table, possibly advise hash algorithm */
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struct unimapinit {
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unsigned short advised_hashsize; /* 0 if no opinion */
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unsigned short advised_hashstep; /* 0 if no opinion */
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unsigned short advised_hashlevel; /* 0 if no opinion */
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};
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#define UNI_DIRECT_BASE 0xF000 /* start of Direct Font Region */
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#define UNI_DIRECT_MASK 0x01FF /* Direct Font Region bitmask */
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#define K_RAW 0x00
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#define K_XLATE 0x01
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#define K_MEDIUMRAW 0x02
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#define K_UNICODE 0x03
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#define K_OFF 0x04
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#define KDGKBMODE 0x4B44 /* gets current keyboard mode */
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#define KDSKBMODE 0x4B45 /* sets current keyboard mode */
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#define K_METABIT 0x03
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#define K_ESCPREFIX 0x04
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#define KDGKBMETA 0x4B62 /* gets meta key handling mode */
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#define KDSKBMETA 0x4B63 /* sets meta key handling mode */
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#define K_SCROLLLOCK 0x01
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#define K_NUMLOCK 0x02
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#define K_CAPSLOCK 0x04
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#define KDGKBLED 0x4B64 /* get led flags (not lights) */
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#define KDSKBLED 0x4B65 /* set led flags (not lights) */
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struct kbentry {
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unsigned char kb_table;
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unsigned char kb_index;
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unsigned short kb_value;
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};
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#define K_NORMTAB 0x00
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#define K_SHIFTTAB 0x01
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#define K_ALTTAB 0x02
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#define K_ALTSHIFTTAB 0x03
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#define KDGKBENT 0x4B46 /* gets one entry in translation table */
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#define KDSKBENT 0x4B47 /* sets one entry in translation table */
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struct kbsentry {
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unsigned char kb_func;
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unsigned char kb_string[512];
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};
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#define KDGKBSENT 0x4B48 /* gets one function key string entry */
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#define KDSKBSENT 0x4B49 /* sets one function key string entry */
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struct kbdiacr {
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unsigned char diacr, base, result;
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};
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struct kbdiacrs {
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unsigned int kb_cnt; /* number of entries in following array */
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struct kbdiacr kbdiacr[256]; /* MAX_DIACR from keyboard.h */
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};
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#define KDGKBDIACR 0x4B4A /* read kernel accent table */
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#define KDSKBDIACR 0x4B4B /* write kernel accent table */
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struct kbdiacruc {
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unsigned int diacr, base, result;
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};
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struct kbdiacrsuc {
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unsigned int kb_cnt; /* number of entries in following array */
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struct kbdiacruc kbdiacruc[256]; /* MAX_DIACR from keyboard.h */
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};
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#define KDGKBDIACRUC 0x4BFA /* read kernel accent table - UCS */
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#define KDSKBDIACRUC 0x4BFB /* write kernel accent table - UCS */
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struct kbkeycode {
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unsigned int scancode, keycode;
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};
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#define KDGETKEYCODE 0x4B4C /* read kernel keycode table entry */
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#define KDSETKEYCODE 0x4B4D /* write kernel keycode table entry */
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#define KDSIGACCEPT 0x4B4E /* accept kbd generated signals */
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struct kbd_repeat {
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int delay; /* in msec; <= 0: don't change */
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int period; /* in msec; <= 0: don't change */
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/* earlier this field was misnamed "rate" */
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};
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#define KDKBDREP 0x4B52 /* set keyboard delay/repeat rate;
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* actually used values are returned */
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#define KDFONTOP 0x4B72 /* font operations */
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struct console_font_op {
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unsigned int op; /* operation code KD_FONT_OP_* */
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unsigned int flags; /* KD_FONT_FLAG_* */
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unsigned int width, height; /* font size */
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unsigned int charcount;
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unsigned char __user *data; /* font data with vpitch fixed to 32 for
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* KD_FONT_OP_SET/GET
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*/
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};
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struct console_font {
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unsigned int width, height; /* font size */
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unsigned int charcount;
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unsigned char *data; /* font data with vpitch fixed to 32 for
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* KD_FONT_OP_SET/GET
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*/
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};
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#define KD_FONT_OP_SET 0 /* Set font */
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#define KD_FONT_OP_GET 1 /* Get font */
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#define KD_FONT_OP_SET_DEFAULT 2 /* Set font to default, data points to name / NULL */
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#define KD_FONT_OP_COPY 3 /* Obsolete, do not use */
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#define KD_FONT_OP_SET_TALL 4 /* Set font with vpitch = height */
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#define KD_FONT_OP_GET_TALL 5 /* Get font with vpitch = height */
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#define KD_FONT_FLAG_DONT_RECALC 1 /* Don't recalculate hw charcell size [compat] */
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/* note: 0x4B00-0x4B4E all have had a value at some time;
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don't reuse for the time being */
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/* note: 0x4B60-0x4B6D, 0x4B70-0x4B72 used above */
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#endif /* _UAPI_LINUX_KD_H */
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