87 lines
3.4 KiB
C
87 lines
3.4 KiB
C
/* $OpenBSD: pcdisplayvar.h,v 1.13 2020/05/25 09:55:48 jsg Exp $ */
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/* $NetBSD: pcdisplayvar.h,v 1.8 2000/01/25 02:44:03 ad Exp $ */
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/*
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* Copyright (c) 1998
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* Matthias Drochner. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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struct pcdisplayscreen {
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struct pcdisplay_handle *hdl;
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const struct wsscreen_descr *type;
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int active; /* currently displayed */
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u_int16_t *mem; /* backing store for contents */
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int cursoron; /* cursor displayed? */
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#ifdef PCDISPLAY_SOFTCURSOR
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int cursortmp; /* glyph & attribute behind software cursor */
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#endif
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int vc_ccol, vc_crow; /* current cursor position */
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int dispoffset; /* offset of displayed area in video mem */
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int visibleoffset;
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};
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struct pcdisplay_handle {
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bus_space_tag_t ph_iot, ph_memt;
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bus_space_handle_t ph_ioh_6845, ph_memh;
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};
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static inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *, int);
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static inline void _pcdisplay_6845_write(struct pcdisplay_handle *,
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int, u_int8_t);
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static inline u_int8_t
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_pcdisplay_6845_read(struct pcdisplay_handle *ph, int reg)
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{
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bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
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return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA));
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}
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static inline void
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_pcdisplay_6845_write(struct pcdisplay_handle *ph, int reg, u_int8_t val)
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{
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bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
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bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
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}
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#define pcdisplay_6845_read(ph, reg) \
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_pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
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#define pcdisplay_6845_write(ph, reg, val) \
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_pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
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void pcdisplay_cursor_init(struct pcdisplayscreen *, int);
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void pcdisplay_cursor_reset(struct pcdisplayscreen *);
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int pcdisplay_cursor(void *, int, int, int);
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int pcdisplay_mapchar(void *, int, unsigned int *);
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int pcdisplay_putchar(void *, int, int, u_int, uint32_t);
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struct wsdisplay_charcell;
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int pcdisplay_getchar(void *, int, int, struct wsdisplay_charcell *);
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int pcdisplay_copycols(void *, int, int, int,int);
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int pcdisplay_erasecols(void *, int, int, int, uint32_t);
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int pcdisplay_copyrows(void *, int, int, int);
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int pcdisplay_eraserows(void *, int, int, uint32_t);
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