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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI_LINUX_VT_H3#define _UAPI_LINUX_VT_H4 5 6/*7 * These constants are also useful for user-level apps (e.g., VC8 * resizing).9 */10#define MIN_NR_CONSOLES 1 /* must be at least 1 */11#define MAX_NR_CONSOLES 63 /* serial lines start at 64 */12 /* Note: the ioctl VT_GETSTATE does not work for13 consoles 16 and higher (since it returns a short) */14 15/* 0x56 is 'V', to avoid collision with termios and kd */16 17#define VT_OPENQRY 0x5600 /* find available vt */18 19struct vt_mode {20 char mode; /* vt mode */21 char waitv; /* if set, hang on writes if not active */22 short relsig; /* signal to raise on release req */23 short acqsig; /* signal to raise on acquisition */24 short frsig; /* unused (set to 0) */25};26#define VT_GETMODE 0x5601 /* get mode of active vt */27#define VT_SETMODE 0x5602 /* set mode of active vt */28#define VT_AUTO 0x00 /* auto vt switching */29#define VT_PROCESS 0x01 /* process controls switching */30#define VT_ACKACQ 0x02 /* acknowledge switch */31 32struct vt_stat {33 unsigned short v_active; /* active vt */34 unsigned short v_signal; /* signal to send */35 unsigned short v_state; /* vt bitmask */36};37#define VT_GETSTATE 0x5603 /* get global vt state info */38#define VT_SENDSIG 0x5604 /* signal to send to bitmask of vts */39 40#define VT_RELDISP 0x5605 /* release display */41 42#define VT_ACTIVATE 0x5606 /* make vt active */43#define VT_WAITACTIVE 0x5607 /* wait for vt active */44#define VT_DISALLOCATE 0x5608 /* free memory associated to vt */45 46struct vt_sizes {47 unsigned short v_rows; /* number of rows */48 unsigned short v_cols; /* number of columns */49 unsigned short v_scrollsize; /* number of lines of scrollback */50};51#define VT_RESIZE 0x5609 /* set kernel's idea of screensize */52 53struct vt_consize {54 unsigned short v_rows; /* number of rows */55 unsigned short v_cols; /* number of columns */56 unsigned short v_vlin; /* number of pixel rows on screen */57 unsigned short v_clin; /* number of pixel rows per character */58 unsigned short v_vcol; /* number of pixel columns on screen */59 unsigned short v_ccol; /* number of pixel columns per character */60};61#define VT_RESIZEX 0x560A /* set kernel's idea of screensize + more */62#define VT_LOCKSWITCH 0x560B /* disallow vt switching */63#define VT_UNLOCKSWITCH 0x560C /* allow vt switching */64#define VT_GETHIFONTMASK 0x560D /* return hi font mask */65 66struct vt_event {67 unsigned int event;68#define VT_EVENT_SWITCH 0x0001 /* Console switch */69#define VT_EVENT_BLANK 0x0002 /* Screen blank */70#define VT_EVENT_UNBLANK 0x0004 /* Screen unblank */71#define VT_EVENT_RESIZE 0x0008 /* Resize display */72#define VT_MAX_EVENT 0x000F73 unsigned int oldev; /* Old console */74 unsigned int newev; /* New console (if changing) */75 unsigned int pad[4]; /* Padding for expansion */76};77 78#define VT_WAITEVENT 0x560E /* Wait for an event */79 80struct vt_setactivate {81 unsigned int console;82 struct vt_mode mode;83};84 85#define VT_SETACTIVATE 0x560F /* Activate and set the mode of a console */86 87#endif /* _UAPI_LINUX_VT_H */88