Home | History | Annotate | Line # | Download | only in ic
pcdisplayvar.h revision 1.9 
      1 /* $NetBSD: pcdisplayvar.h,v 1.9 2002/06/26 23:05:33 christos Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1998
      5  *	Matthias Drochner.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed for the NetBSD Project
     18  *	by Matthias Drochner.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 #include "opt_pcdisplay.h"
     36 
     37 struct pcdisplayscreen {
     38 	struct pcdisplay_handle *hdl;
     39 
     40 	const struct wsscreen_descr *type;
     41 
     42 	int active;	/* currently displayed */
     43 	u_int16_t *mem; /* backing store for contents */
     44 
     45 	int cursoron;		/* cursor displayed? */
     46 #ifdef PCDISPLAY_SOFTCURSOR
     47 	int cursortmp;		/* glyph & attribute behind software cursor */
     48 #endif
     49 	int vc_ccol, vc_crow;	/* current cursor position */
     50 
     51 	int dispoffset; /* offset of displayed area in video mem */
     52 };
     53 
     54 struct pcdisplay_handle {
     55 	bus_space_tag_t	ph_iot, ph_memt;
     56 	bus_space_handle_t ph_ioh_6845, ph_memh;
     57 };
     58 
     59 static inline u_int8_t _pcdisplay_6845_read __P((struct pcdisplay_handle *,
     60 						 int));
     61 static inline void _pcdisplay_6845_write __P((struct pcdisplay_handle *,
     62 					      int, u_int8_t));
     63 
     64 static inline u_int8_t _pcdisplay_6845_read(ph, reg)
     65 	struct pcdisplay_handle *ph;
     66 	int reg;
     67 {
     68 	bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
     69 	return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA));
     70 }
     71 
     72 static inline void _pcdisplay_6845_write(ph, reg, val)
     73 	struct pcdisplay_handle *ph;
     74 	int reg;
     75 	u_int8_t val;
     76 {
     77 	bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
     78 	bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
     79 }
     80 
     81 #define pcdisplay_6845_read(ph, reg) \
     82 	_pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
     83 #define pcdisplay_6845_write(ph, reg, val) \
     84 	_pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
     85 
     86 void	pcdisplay_cursor_init __P((struct pcdisplayscreen *, int));
     87 void	pcdisplay_cursor __P((void *, int, int, int));
     88 #if 0
     89 unsigned int pcdisplay_mapchar_simple __P((void *, int));
     90 #endif
     91 int pcdisplay_mapchar __P((void *, int, unsigned int *));
     92 void	pcdisplay_putchar __P((void *, int, int, u_int, long));
     93 void	pcdisplay_copycols __P((void *, int, int, int,int));
     94 void	pcdisplay_erasecols __P((void *, int, int, int, long));
     95 void	pcdisplay_copyrows __P((void *, int, int, int));
     96 void	pcdisplay_eraserows __P((void *, int, int, long));
     97 struct wsdisplay_char;
     98 int	pcdisplay_getwschar __P((void *, struct wsdisplay_char *));
     99 int	pcdisplay_putwschar __P((void *, struct wsdisplay_char *));
    100