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