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 #include <linux/ioctl.h> 6 #include <linux/types.h> 7 8 /* 9 * These constants are also useful for user-level apps (e.g., VC 10 * resizing). 11 */ 12 #define MIN_NR_CONSOLES 1 /* must be at least 1 */ 13 #define MAX_NR_CONSOLES 63 /* serial lines start at 64 */ 14 /* Note: the ioctl VT_GETSTATE does not work for 15 consoles 16 and higher (since it returns a short) */ 16 17 /* 0x56 is 'V', to avoid collision with termios and kd */ 18 19 #define VT_OPENQRY 0x5600 /* find available vt */ 20 21 struct vt_mode { 22 char mode; /* vt mode */ 23 char waitv; /* if set, hang on writes if not active */ 24 short relsig; /* signal to raise on release req */ 25 short acqsig; /* signal to raise on acquisition */ 26 short frsig; /* unused (set to 0) */ 27 }; 28 #define VT_GETMODE 0x5601 /* get mode of active vt */ 29 #define VT_SETMODE 0x5602 /* set mode of active vt */ 30 #define VT_AUTO 0x00 /* auto vt switching */ 31 #define VT_PROCESS 0x01 /* process controls switching */ 32 #define VT_ACKACQ 0x02 /* acknowledge switch */ 33 34 struct vt_stat { 35 unsigned short v_active; /* active vt */ 36 unsigned short v_signal; /* signal to send */ 37 unsigned short v_state; /* vt bitmask */ 38 }; 39 #define VT_GETSTATE 0x5603 /* get global vt state info */ 40 #define VT_SENDSIG 0x5604 /* signal to send to bitmask of vts */ 41 42 #define VT_RELDISP 0x5605 /* release display */ 43 44 #define VT_ACTIVATE 0x5606 /* make vt active */ 45 #define VT_WAITACTIVE 0x5607 /* wait for vt active */ 46 #define VT_DISALLOCATE 0x5608 /* free memory associated to vt */ 47 48 struct vt_sizes { 49 unsigned short v_rows; /* number of rows */ 50 unsigned short v_cols; /* number of columns */ 51 unsigned short v_scrollsize; /* number of lines of scrollback */ 52 }; 53 #define VT_RESIZE 0x5609 /* set kernel's idea of screensize */ 54 55 struct vt_consize { 56 unsigned short v_rows; /* number of rows */ 57 unsigned short v_cols; /* number of columns */ 58 unsigned short v_vlin; /* number of pixel rows on screen */ 59 unsigned short v_clin; /* number of pixel rows per character */ 60 unsigned short v_vcol; /* number of pixel columns on screen */ 61 unsigned short v_ccol; /* number of pixel columns per character */ 62 }; 63 #define VT_RESIZEX 0x560A /* set kernel's idea of screensize + more */ 64 #define VT_LOCKSWITCH 0x560B /* disallow vt switching */ 65 #define VT_UNLOCKSWITCH 0x560C /* allow vt switching */ 66 #define VT_GETHIFONTMASK 0x560D /* return hi font mask */ 67 68 struct vt_event { 69 unsigned int event; 70 #define VT_EVENT_SWITCH 0x0001 /* Console switch */ 71 #define VT_EVENT_BLANK 0x0002 /* Screen blank */ 72 #define VT_EVENT_UNBLANK 0x0004 /* Screen unblank */ 73 #define VT_EVENT_RESIZE 0x0008 /* Resize display */ 74 #define VT_MAX_EVENT 0x000F 75 unsigned int oldev; /* Old console */ 76 unsigned int newev; /* New console (if changing) */ 77 unsigned int pad[4]; /* Padding for expansion */ 78 }; 79 80 #define VT_WAITEVENT 0x560E /* Wait for an event */ 81 82 struct vt_setactivate { 83 unsigned int console; 84 struct vt_mode mode; 85 }; 86 87 #define VT_SETACTIVATE 0x560F /* Activate and set the mode of a console */ 88 89 /* get console size and cursor position */ 90 struct vt_consizecsrpos { 91 __u16 con_rows; /* number of console rows */ 92 __u16 con_cols; /* number of console columns */ 93 __u16 csr_row; /* current cursor's row */ 94 __u16 csr_col; /* current cursor's column */ 95 }; 96 #define VT_GETCONSIZECSRPOS _IOR('V', 0x10, struct vt_consizecsrpos) 97 98 #endif /* _UAPI_LINUX_VT_H */ 99