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 */
88