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