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      1 /* $NetBSD: wsemulvar.h,v 1.16 2017/05/19 19:22:33 macallan Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1996, 1997 Christopher G. Demetriou.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Christopher G. Demetriou
     17  *	for the NetBSD Project.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 struct wsdisplay_emulops;
     34 
     35 enum wsemul_resetops {
     36 	WSEMUL_RESET,
     37 	WSEMUL_SYNCFONT,
     38 	WSEMUL_CLEARSCREEN
     39 };
     40 
     41 struct wsemul_ops {
     42 	const char *name;
     43 
     44 	void	*(*cnattach)(const struct wsscreen_descr *, void *,
     45 				  int, int, long);
     46 	void	*(*attach)(int console, const struct wsscreen_descr *, void *,
     47 				int, int, void *, long);
     48 	void	(*output)(void *, const u_char *, u_int, int);
     49 	int	(*translate)(void *, keysym_t, const char **);
     50 	void	(*detach)(void *, u_int *, u_int *);
     51 	void    (*reset)(void *, enum wsemul_resetops);
     52 	void	(*getmsgattrs)(void *, struct wsdisplay_msgattrs *);
     53 	void	(*setmsgattrs)(void *, const struct wsscreen_descr *,
     54 		               const struct wsdisplay_msgattrs *);
     55 	void	(*resize)(void *, const struct wsscreen_descr *);
     56 };
     57 
     58 #if defined(_KERNEL_OPT)
     59 #include "opt_wsemul.h"
     60 #endif
     61 
     62 #ifndef WSEMUL_NO_DUMB
     63 extern const struct wsemul_ops wsemul_dumb_ops;
     64 #endif
     65 #ifdef WSEMUL_SUN
     66 extern const struct wsemul_ops wsemul_sun_ops;
     67 #endif
     68 #ifdef WSEMUL_VT100
     69 extern const struct wsemul_ops wsemul_vt100_ops;
     70 #endif
     71 
     72 const struct wsemul_ops *wsemul_pick(const char *);
     73 void wsemul_drop(const struct wsemul_ops *);
     74 int wsemul_add(const struct wsemul_ops *);
     75 int wsemul_remove(const struct wsemul_ops *);
     76 
     77 /*
     78  * Callbacks from the emulation code to the display interface driver.
     79  */
     80 void	wsdisplay_emulbell(void *);
     81 void	wsdisplay_emulinput(void *, const u_char *, u_int);
     82