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1 | #ifndef _LINUX_VT_H | |
2 | #define _LINUX_VT_H | |
3 | ||
4 | #ifdef __KERNEL__ | |
5 | struct notifier_block; | |
6 | ||
7 | struct vt_notifier_param { | |
8 | struct vc_data *vc; /* VC on which the update happened */ | |
9 | unsigned int c; /* Printed char */ | |
10 | }; | |
11 | ||
12 | extern int register_vt_notifier(struct notifier_block *nb); | |
13 | extern int unregister_vt_notifier(struct notifier_block *nb); | |
14 | #endif | |
15 | ||
16 | /* | |
17 | * These constants are also useful for user-level apps (e.g., VC | |
18 | * resizing). | |
19 | */ | |
20 | #define MIN_NR_CONSOLES 1 /* must be at least 1 */ | |
21 | #define MAX_NR_CONSOLES 63 /* serial lines start at 64 */ | |
22 | #define MAX_NR_USER_CONSOLES 63 /* must be root to allocate above this */ | |
23 | /* Note: the ioctl VT_GETSTATE does not work for | |
24 | consoles 16 and higher (since it returns a short) */ | |
25 | ||
26 | /* 0x56 is 'V', to avoid collision with termios and kd */ | |
27 | ||
28 | #define VT_OPENQRY 0x5600 /* find available vt */ | |
29 | ||
30 | struct vt_mode { | |
31 | char mode; /* vt mode */ | |
32 | char waitv; /* if set, hang on writes if not active */ | |
33 | short relsig; /* signal to raise on release req */ | |
34 | short acqsig; /* signal to raise on acquisition */ | |
35 | short frsig; /* unused (set to 0) */ | |
36 | }; | |
37 | #define VT_GETMODE 0x5601 /* get mode of active vt */ | |
38 | #define VT_SETMODE 0x5602 /* set mode of active vt */ | |
39 | #define VT_AUTO 0x00 /* auto vt switching */ | |
40 | #define VT_PROCESS 0x01 /* process controls switching */ | |
41 | #define VT_ACKACQ 0x02 /* acknowledge switch */ | |
42 | ||
43 | struct vt_stat { | |
44 | unsigned short v_active; /* active vt */ | |
45 | unsigned short v_signal; /* signal to send */ | |
46 | unsigned short v_state; /* vt bitmask */ | |
47 | }; | |
48 | #define VT_GETSTATE 0x5603 /* get global vt state info */ | |
49 | #define VT_SENDSIG 0x5604 /* signal to send to bitmask of vts */ | |
50 | ||
51 | #define VT_RELDISP 0x5605 /* release display */ | |
52 | ||
53 | #define VT_ACTIVATE 0x5606 /* make vt active */ | |
54 | #define VT_WAITACTIVE 0x5607 /* wait for vt active */ | |
55 | #define VT_DISALLOCATE 0x5608 /* free memory associated to vt */ | |
56 | ||
57 | struct vt_sizes { | |
58 | unsigned short v_rows; /* number of rows */ | |
59 | unsigned short v_cols; /* number of columns */ | |
60 | unsigned short v_scrollsize; /* number of lines of scrollback */ | |
61 | }; | |
62 | #define VT_RESIZE 0x5609 /* set kernel's idea of screensize */ | |
63 | ||
64 | struct vt_consize { | |
65 | unsigned short v_rows; /* number of rows */ | |
66 | unsigned short v_cols; /* number of columns */ | |
67 | unsigned short v_vlin; /* number of pixel rows on screen */ | |
68 | unsigned short v_clin; /* number of pixel rows per character */ | |
69 | unsigned short v_vcol; /* number of pixel columns on screen */ | |
70 | unsigned short v_ccol; /* number of pixel columns per character */ | |
71 | }; | |
72 | #define VT_RESIZEX 0x560A /* set kernel's idea of screensize + more */ | |
73 | #define VT_LOCKSWITCH 0x560B /* disallow vt switching */ | |
74 | #define VT_UNLOCKSWITCH 0x560C /* allow vt switching */ | |
75 | #define VT_GETHIFONTMASK 0x560D /* return hi font mask */ | |
76 | ||
77 | #endif /* _LINUX_VT_H */ |