1 /* $NetBSD: pcdisplayvar.h,v 1.18 2006/05/14 21:42:27 elad 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 #include "opt_pcdisplay.h" 30 31 struct pcdisplayscreen { 32 struct pcdisplay_handle *hdl; 33 34 const struct wsscreen_descr *type; 35 36 int active; /* currently displayed */ 37 u_int16_t *mem; /* backing store for contents */ 38 39 int cursoron; /* cursor displayed? */ 40 #ifdef PCDISPLAY_SOFTCURSOR 41 int cursortmp; /* glyph & attribute behind software cursor */ 42 #endif 43 int cursorcol, cursorrow; /* current cursor position */ 44 45 int dispoffset; /* offset of displayed area in video mem */ 46 int visibleoffset; 47 }; 48 49 struct pcdisplay_handle { 50 bus_space_tag_t ph_iot, ph_memt; 51 bus_space_handle_t ph_ioh_6845, ph_memh; 52 }; 53 54 static __inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *, int); 55 static __inline void _pcdisplay_6845_write(struct pcdisplay_handle *, int, 56 u_int8_t); 57 58 static __inline u_int8_t _pcdisplay_6845_read(ph, reg) 59 struct pcdisplay_handle *ph; 60 int reg; 61 { 62 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg); 63 return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA)); 64 } 65 66 static __inline void _pcdisplay_6845_write(ph, reg, val) 67 struct pcdisplay_handle *ph; 68 int reg; 69 u_int8_t val; 70 { 71 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg); 72 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val); 73 } 74 75 #define pcdisplay_6845_read(ph, reg) \ 76 _pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg)) 77 #define pcdisplay_6845_write(ph, reg, val) \ 78 _pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val) 79 80 void pcdisplay_cursor_init(struct pcdisplayscreen *, int); 81 void pcdisplay_cursor(void *, int, int, int); 82 #if 0 83 unsigned int pcdisplay_mapchar_simple(void *, int); 84 #endif 85 int pcdisplay_mapchar(void *, int, unsigned int *); 86 void pcdisplay_putchar(void *, int, int, u_int, long); 87 void pcdisplay_copycols(void *, int, int, int,int); 88 void pcdisplay_erasecols(void *, int, int, int, long); 89 void pcdisplay_copyrows(void *, int, int, int); 90 void pcdisplay_eraserows(void *, int, int, long); 91 void pcdisplay_replaceattr(void *, long, long); 92 struct wsdisplay_char; 93 int pcdisplay_getwschar(struct pcdisplayscreen *, struct wsdisplay_char *); 94 int pcdisplay_putwschar(struct pcdisplayscreen *, struct wsdisplay_char *); 95