/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_VT_H
#define _UAPI_LINUX_VT_H

#include <linux/ioctl.h>
#include <linux/types.h>

/*
 * These constants are also useful for user-level apps (e.g., VC
 * resizing).
 */
#define MIN_NR_CONSOLES 1       /* must be at least 1 */
#define MAX_NR_CONSOLES 63      /* serial lines start at 64 */
                /* Note: the ioctl VT_GETSTATE does not work for
                   consoles 16 and higher (since it returns a short) */

/* 0x56 is 'V', to avoid collision with termios and kd */

#define VT_OPENQRY      0x5600  /* find available vt */

struct vt_mode {
        __u8 mode;              /* vt mode */
        __u8 waitv;             /* if set, hang on writes if not active */
        __s16 relsig;           /* signal to raise on release req */
        __s16 acqsig;           /* signal to raise on acquisition */
        __s16 frsig;            /* unused (set to 0) */
};
#define VT_GETMODE      0x5601  /* get mode of active vt */
#define VT_SETMODE      0x5602  /* set mode of active vt */
#define         VT_AUTO         0x00    /* auto vt switching */
#define         VT_PROCESS      0x01    /* process controls switching */
#define         VT_ACKACQ       0x02    /* acknowledge switch */

struct vt_stat {
        __u16 v_active; /* active vt */
        __u16 v_signal; /* signal to send */
        __u16 v_state;          /* vt bitmask */
};
#define VT_GETSTATE     0x5603  /* get global vt state info */
#define VT_SENDSIG      0x5604  /* signal to send to bitmask of vts */

#define VT_RELDISP      0x5605  /* release display */

#define VT_ACTIVATE     0x5606  /* make vt active */
#define VT_WAITACTIVE   0x5607  /* wait for vt active */
#define VT_DISALLOCATE  0x5608  /* free memory associated to vt */

struct vt_sizes {
        __u16 v_rows;           /* number of rows */
        __u16 v_cols;           /* number of columns */
        __u16 v_scrollsize;     /* number of lines of scrollback */
};
#define VT_RESIZE       0x5609  /* set kernel's idea of screensize */

struct vt_consize {
        __u16 v_rows;   /* number of rows */
        __u16 v_cols;   /* number of columns */
        __u16 v_vlin;   /* number of pixel rows on screen */
        __u16 v_clin;   /* number of pixel rows per character */
        __u16 v_vcol;   /* number of pixel columns on screen */
        __u16 v_ccol;   /* number of pixel columns per character */
};
#define VT_RESIZEX      0x560A  /* set kernel's idea of screensize + more */
#define VT_LOCKSWITCH   0x560B  /* disallow vt switching */
#define VT_UNLOCKSWITCH 0x560C  /* allow vt switching */
#define VT_GETHIFONTMASK 0x560D  /* return hi font mask */

struct vt_event {
        __u32 event;
#define VT_EVENT_SWITCH         0x0001  /* Console switch */
#define VT_EVENT_BLANK          0x0002  /* Screen blank */
#define VT_EVENT_UNBLANK        0x0004  /* Screen unblank */
#define VT_EVENT_RESIZE         0x0008  /* Resize display */
#define VT_MAX_EVENT            0x000F
        __u32 oldev;            /* Old console */
        __u32 newev;            /* New console (if changing) */
        __u32 pad[4];           /* Padding for expansion */
};

#define VT_WAITEVENT    0x560E  /* Wait for an event */

struct vt_setactivate {
        __u32 console;
        struct vt_mode mode;
};

#define VT_SETACTIVATE  0x560F  /* Activate and set the mode of a console */

/* get console size and cursor position */
struct vt_consizecsrpos {
        __u16 con_rows;         /* number of console rows */
        __u16 con_cols;         /* number of console columns */
        __u16 csr_row;          /* current cursor's row */
        __u16 csr_col;          /* current cursor's column */
};
#define VT_GETCONSIZECSRPOS     _IOR('V', 0x10, struct vt_consizecsrpos)

#endif /* _UAPI_LINUX_VT_H */