include/linux/vt.h

   1 #ifndef _LINUX_VT_H
   2 #define _LINUX_VT_H
   3
   4 /*
   5  * These constants are also useful for user-level apps (e.g., VC
   6  * resizing).
   7  */
   8 #define MIN_NR_CONSOLES 1       /* must be at least 1 */
   9 #define MAX_NR_CONSOLES 63      /* serial lines start at 64 */
  10 #define MAX_NR_USER_CONSOLES 63 /* must be root to allocate above this */
  11                 /* Note: the ioctl VT_GETSTATE does not work for
  12                    consoles 16 and higher (since it returns a short) */
  13
  14 /* 0x56 is 'V', to avoid collision with termios and kd */
  15
  16 #define VT_OPENQRY      0x5600  /* find available vt */
  17
  18 struct vt_mode {
  19         char mode;              /* vt mode */
  20         char waitv;             /* if set, hang on writes if not active */
  21         short relsig;           /* signal to raise on release req */
  22         short acqsig;           /* signal to raise on acquisition */
  23         short frsig;            /* unused (set to 0) */
  24 };
  25 #define VT_GETMODE      0x5601  /* get mode of active vt */
  26 #define VT_SETMODE      0x5602  /* set mode of active vt */
  27 #define         VT_AUTO         0x00    /* auto vt switching */
  28 #define         VT_PROCESS      0x01    /* process controls switching */
  29 #define         VT_ACKACQ       0x02    /* acknowledge switch */
  30
  31 struct vt_stat {
  32         unsigned short v_active;        /* active vt */
  33         unsigned short v_signal;        /* signal to send */
  34         unsigned short v_state;         /* vt bitmask */
  35 };
  36 #define VT_GETSTATE     0x5603  /* get global vt state info */
  37 #define VT_SENDSIG      0x5604  /* signal to send to bitmask of vts */
  38
  39 #define VT_RELDISP      0x5605  /* release display */
  40
  41 #define VT_ACTIVATE     0x5606  /* make vt active */
  42 #define VT_WAITACTIVE   0x5607  /* wait for vt active */
  43 #define VT_DISALLOCATE  0x5608  /* free memory associated to vt */
  44
  45 struct vt_sizes {
  46         unsigned short v_rows;          /* number of rows */
  47         unsigned short v_cols;          /* number of columns */
  48         unsigned short v_scrollsize;    /* number of lines of scrollback */
  49 };
  50 #define VT_RESIZE       0x5609  /* set kernel's idea of screensize */
  51
  52 struct vt_consize {
  53         unsigned short v_rows;  /* number of rows */
  54         unsigned short v_cols;  /* number of columns */
  55         unsigned short v_vlin;  /* number of pixel rows on screen */
  56         unsigned short v_clin;  /* number of pixel rows per character */
  57         unsigned short v_vcol;  /* number of pixel columns on screen */
  58         unsigned short v_ccol;  /* number of pixel columns per character */
  59 };
  60 #define VT_RESIZEX      0x560A  /* set kernel's idea of screensize + more */
  61 #define VT_LOCKSWITCH   0x560B  /* disallow vt switching */
  62 #define VT_UNLOCKSWITCH 0x560C  /* allow vt switching */
  63 #define VT_GETHIFONTMASK 0x560D  /* return hi font mask */
  64
  65 #endif /* _LINUX_VT_H */