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pcdisplayvar.h revision 1.11 
      1 /* $NetBSD: pcdisplayvar.h,v 1.11 2002/07/07 06:49:22 junyoung 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 cursorcol, cursorrow;	/* 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(struct pcdisplay_handle *, int);
     60 static inline void _pcdisplay_6845_write(struct pcdisplay_handle *, int,
     61 					 u_int8_t);
     62 
     63 static inline u_int8_t _pcdisplay_6845_read(ph, reg)
     64 	struct pcdisplay_handle *ph;
     65 	int reg;
     66 {
     67 	bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
     68 	return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA));
     69 }
     70 
     71 static inline void _pcdisplay_6845_write(ph, reg, val)
     72 	struct pcdisplay_handle *ph;
     73 	int reg;
     74 	u_int8_t val;
     75 {
     76 	bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
     77 	bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
     78 }
     79 
     80 #define pcdisplay_6845_read(ph, reg) \
     81 	_pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
     82 #define pcdisplay_6845_write(ph, reg, val) \
     83 	_pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
     84 
     85 void	pcdisplay_cursor_init(struct pcdisplayscreen *, int);
     86 void	pcdisplay_cursor(void *, int, int, int);
     87 #if 0
     88 unsigned int pcdisplay_mapchar_simple(void *, int);
     89 #endif
     90 int	pcdisplay_mapchar(void *, int, unsigned int *);
     91 void	pcdisplay_putchar(void *, int, int, u_int, long);
     92 void	pcdisplay_copycols(void *, int, int, int,int);
     93 void	pcdisplay_erasecols(void *, int, int, int, long);
     94 void	pcdisplay_copyrows(void *, int, int, int);
     95 void	pcdisplay_eraserows(void *, int, int, long);
     96 struct wsdisplay_char;
     97 int	pcdisplay_getwschar(void *, struct wsdisplay_char *);
     98 int	pcdisplay_putwschar(void *, struct wsdisplay_char *);
     99