92f81ea7d3
Two new ioctls are added to the wsdisplay device, named WSDISPLAY_GMSGATTRS
and WSDISPLAY_SMSGATTRS, used to retrieve the actual values and set them,
respectively (the name, if you are wondering, comes from "message attributes").
A new emulop is added to the underlying display driver (only vga, for now)
which sets the new attribute for the whole screen, without having to clear
it. This is optional, which means that this also works with other drivers
that don't have this new operation.
Five new kernel options have been added, although only documented in
i386 kernels (for now):
- WSDISPLAY_CUSTOM_OUTPUT, which enables the ioctls described above to
change the colors dynamically from userland. This is enabled by default
in the GENERIC kernel (as well as others) but disabled on all INSTALL*
kernels (as this feature is useless there).
- WS_DEFAULT_COLATTR, WS_DEFAULT_MONOATTR, WS_DEFAULT_BG and WS_DEFAULT_FG,
which specify the default colors for the console at boot time. These have
the same meaning as the (already existing) WS_KERNEL_* variables.
wsconsctl is modified to add msg.default.{attrs,bg,fg} and
msg.kernel.{attrs,bg,fg} to the display part, so that colors can be changed
after boot.
Tested on NetBSD/i386 with vga (and vga in mono mode), and on NetBSD/mac68k.
No objections in tech-kern@.
95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
/* $NetBSD: pcdisplayvar.h,v 1.14 2004/07/28 12:34:04 jmmv 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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#include "opt_pcdisplay.h"
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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 cursorcol, cursorrow; /* 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 *, int,
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u_int8_t);
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static inline u_int8_t _pcdisplay_6845_read(ph, reg)
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struct pcdisplay_handle *ph;
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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 _pcdisplay_6845_write(ph, reg, val)
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struct pcdisplay_handle *ph;
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int reg;
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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(void *, int, int, int);
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#if 0
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unsigned int pcdisplay_mapchar_simple(void *, int);
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#endif
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int pcdisplay_mapchar(void *, int, unsigned int *);
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void pcdisplay_putchar(void *, int, int, u_int, long);
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void pcdisplay_copycols(void *, int, int, int,int);
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void pcdisplay_erasecols(void *, int, int, int, long);
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void pcdisplay_copyrows(void *, int, int, int);
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void pcdisplay_eraserows(void *, int, int, long);
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void pcdisplay_replaceattr(void *, long, long);
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struct wsdisplay_char;
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int pcdisplay_getwschar(void *, struct wsdisplay_char *);
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int pcdisplay_putwschar(void *, struct wsdisplay_char *);
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