[linux.git] / include / linux / vt.h

#ifndef _LINUX_VT_H
#define _LINUX_VT_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 */
#define MAX_NR_USER_CONSOLES 63	/* must be root to allocate above this */
		/* 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 {
	char mode;		/* vt mode */
	char waitv;		/* if set, hang on writes if not active */
	short relsig;		/* signal to raise on release req */
	short acqsig;		/* signal to raise on acquisition */
	short 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 {
	unsigned short v_active;	/* active vt */
	unsigned short v_signal;	/* signal to send */
	unsigned short 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 {
	unsigned short v_rows;		/* number of rows */
	unsigned short v_cols;		/* number of columns */
	unsigned short v_scrollsize;	/* number of lines of scrollback */
};
#define VT_RESIZE	0x5609	/* set kernel's idea of screensize */

struct vt_consize {
	unsigned short v_rows;	/* number of rows */
	unsigned short v_cols;	/* number of columns */
	unsigned short v_vlin;	/* number of pixel rows on screen */
	unsigned short v_clin;	/* number of pixel rows per character */
	unsigned short v_vcol;	/* number of pixel columns on screen */
	unsigned short 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 {
	unsigned int 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
	unsigned int oldev;		/* Old console */
	unsigned int newev;		/* New console (if changing) */
	unsigned int pad[4];		/* Padding for expansion */
};

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

struct vt_setactivate {
	unsigned int console;
	struct vt_mode mode;
};

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

#ifdef __KERNEL__

/* Virtual Terminal events. */
#define VT_ALLOCATE		0x0001 /* Console got allocated */
#define VT_DEALLOCATE		0x0002 /* Console will be deallocated */
#define VT_WRITE		0x0003 /* A char got output */
#define VT_UPDATE		0x0004 /* A bigger update occurred */
#define VT_PREWRITE		0x0005 /* A char is about to be written to the console */

#ifdef CONFIG_VT_CONSOLE

extern int vt_kmsg_redirect(int new);

#else

static inline int vt_kmsg_redirect(int new)
{
	return 0;
}

#endif

#endif /* __KERNEL__ */

#define vt_get_kmsg_redirect() vt_kmsg_redirect(-1)

#endif /* _LINUX_VT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_VT_H
	2	#define _LINUX_VT_H
	3
b293d758	4
a8f340e3 JS	5	/*
	6	* These constants are also useful for user-level apps (e.g., VC
	7	* resizing).
	8	*/
	9	#define MIN_NR_CONSOLES 1 /* must be at least 1 */
	10	#define MAX_NR_CONSOLES 63 /* serial lines start at 64 */
	11	#define MAX_NR_USER_CONSOLES 63 /* must be root to allocate above this */
	12	/* Note: the ioctl VT_GETSTATE does not work for
	13	consoles 16 and higher (since it returns a short) */
	14
1da177e4 LT	15	/* 0x56 is 'V', to avoid collision with termios and kd */
	16
	17	#define VT_OPENQRY 0x5600 /* find available vt */
	18
	19	struct 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 */
87a6aca5	30	#define VT_ACKACQ 0x02 /* acknowledge switch */
1da177e4 LT	31
	32	struct 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
	46	struct 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
	53	struct 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 */
533475d3	64	#define VT_GETHIFONTMASK 0x560D /* return hi font mask */
1da177e4	65
8b92e87d AC	66	struct 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
308efab5 AC	73	unsigned int oldev; /* Old console */
308efab5 AC	74	unsigned int newev; /* New console (if changing) */
8b92e87d AC	75	unsigned int pad[4]; /* Padding for expansion */
	76	};
	77
	78	#define VT_WAITEVENT 0x560E /* Wait for an event */
	79
d3b5cffc AC	80	struct 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
5d0bb2c4 BW	87	#ifdef __KERNEL__
5d0bb2c4 BW	88
a376d3d6 AW	89	/* Virtual Terminal events. */
	90	#define VT_ALLOCATE 0x0001 /* Console got allocated */
	91	#define VT_DEALLOCATE 0x0002 /* Console will be deallocated */
	92	#define VT_WRITE 0x0003 /* A char got output */
	93	#define VT_UPDATE 0x0004 /* A bigger update occurred */
	94	#define VT_PREWRITE 0x0005 /* A char is about to be written to the console */
	95
5ada918b BW	96	#ifdef CONFIG_VT_CONSOLE
	97
	98	extern int vt_kmsg_redirect(int new);
	99
	100	#else
	101
	102	static inline int vt_kmsg_redirect(int new)
	103	{
	104	return 0;
	105	}
	106
	107	#endif
	108
5d0bb2c4 BW	109	#endif /* __KERNEL__ */
5d0bb2c4 BW	110
5ada918b BW	111	#define vt_get_kmsg_redirect() vt_kmsg_redirect(-1)
5ada918b BW	112
1da177e4	113	#endif /* _LINUX_VT_H */