vt.h (3074B)
1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef _UAPI_LINUX_VT_H 3#define _UAPI_LINUX_VT_H 4 5 6/* 7 * These constants are also useful for user-level apps (e.g., VC 8 * 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 for 13 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 0x000F 73 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 */