1 /* $OpenBSD: pcdisplayvar.h,v 1.11 2010/08/28 12:48:14 miod Exp $ */ 2 /* $NetBSD: pcdisplayvar.h,v 1.8 2000/01/25 02:44:03 ad Exp $ */ 3 4 /* 5 * Copyright (c) 1998 6 * Matthias Drochner. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 struct pcdisplayscreen { 31 struct pcdisplay_handle *hdl; 32 33 const struct wsscreen_descr *type; 34 35 int active; /* currently displayed */ 36 u_int16_t *mem; /* backing store for contents */ 37 38 int cursoron; /* cursor displayed? */ 39 #ifdef PCDISPLAY_SOFTCURSOR 40 int cursortmp; /* glyph & attribute behind software cursor */ 41 #endif 42 int vc_ccol, vc_crow; /* current cursor position */ 43 44 int dispoffset; /* offset of displayed area in video mem */ 45 int visibleoffset; 46 }; 47 48 struct pcdisplay_handle { 49 bus_space_tag_t ph_iot, ph_memt; 50 bus_space_handle_t ph_ioh_6845, ph_memh; 51 }; 52 53 static inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *, int); 54 static inline void _pcdisplay_6845_write(struct pcdisplay_handle *, 55 int, u_int8_t); 56 57 static inline u_int8_t 58 _pcdisplay_6845_read(struct pcdisplay_handle *ph, int reg) 59 { 60 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg); 61 return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA)); 62 } 63 64 static inline void 65 _pcdisplay_6845_write(struct pcdisplay_handle *ph, int reg, u_int8_t val) 66 { 67 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg); 68 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val); 69 } 70 71 #define pcdisplay_6845_read(ph, reg) \ 72 _pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg)) 73 #define pcdisplay_6845_write(ph, reg, val) \ 74 _pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val) 75 76 void pcdisplay_cursor_init(struct pcdisplayscreen *, int); 77 void pcdisplay_cursor_reset(struct pcdisplayscreen *); 78 int pcdisplay_cursor(void *, int, int, int); 79 #if 0 80 unsigned int pcdisplay_mapchar_simple(void *, int); 81 #endif 82 int pcdisplay_mapchar(void *, int, unsigned int *); 83 int pcdisplay_putchar(void *, int, int, u_int, long); 84 struct wsdisplay_charcell; 85 int pcdisplay_getchar(void *, int, int, struct wsdisplay_charcell *); 86 int pcdisplay_copycols(void *, int, int, int,int); 87 int pcdisplay_erasecols(void *, int, int, int, long); 88 int pcdisplay_copyrows(void *, int, int, int); 89 int pcdisplay_eraserows(void *, int, int, long); 90