1 /* $NetBSD: pcdisplayvar.h,v 1.8 2000/01/25 02:44:03 ad 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