129 lines
4.7 KiB
C
129 lines
4.7 KiB
C
/* $NetBSD: wsdisplayvar.h,v 1.1 1998/03/22 14:24:03 drochner Exp $ */
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/*
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* Copyright (c) 1996, 1997 Christopher G. Demetriou. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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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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struct device;
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/*
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* WSDISPLAY interfaces
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*/
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/*
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* Emulation functions, for displays that can support glass-tty terminal
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* emulations. These are character oriented, with row and column
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* numbers starting at zero in the upper left hand corner of the
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* screen.
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*
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* These are used only when emulating a terminal. Therefore, displays
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* drivers which cannot emulate terminals do not have to provide them.
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*
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* There is a "void *" cookie provided by the display driver associated
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* with these functions, which is passed to them when they are invoked.
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*/
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struct wsdisplay_emulops {
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void (*cursor) __P((void *c, int on, int row, int col));
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void (*putstr) __P((void *c, int row, int col, char *cp, int n));
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void (*copycols) __P((void *c, int row, int srccol, int dstcol,
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int ncols));
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void (*erasecols) __P((void *c, int row, int startcol,
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int ncols));
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void (*copyrows) __P((void *c, int srcrow, int dstrow,
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int nrows));
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void (*eraserows) __P((void *c, int row, int nrows));
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};
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struct wsscreen_descr {
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char *name;
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int ncols, nrows;
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const struct wsdisplay_emulops *textops;
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int fontwidth, fontheight;
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};
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/*
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* Display access functions, invoked by user-land programs which require
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* direct device access, such as X11.
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*
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* There is a "void *" cookie provided by the display driver associated
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* with these functions, which is passed to them when they are invoked.
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*/
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struct wsdisplay_accessops {
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int (*ioctl) __P((void *v, u_long cmd, caddr_t data, int flag,
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struct proc *p));
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int (*mmap) __P((void *v, off_t off, int prot));
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int (*alloc_screen) __P((void *, const struct wsscreen_descr *,
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void **, int *, int *));
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void (*free_screen) __P((void *, void *));
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void (*show_screen) __P((void *, void *));
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int (*load_font) __P((void *, void *, int, int, int, void *));
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};
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/*
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* Attachment information provided by wsdisplaydev devices when attaching
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* wsdisplay units.
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*/
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struct wsdisplaydev_attach_args {
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const struct wsdisplay_accessops *accessops; /* access ops */
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void *accesscookie; /* access cookie */
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};
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/* passed to wscons by the video driver to tell about its capabilities */
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struct wsscreen_list {
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int nscreens;
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const struct wsscreen_descr **screens;
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};
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/*
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* Attachment information provided by wsemuldisplaydev devices when attaching
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* wsdisplay units.
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*/
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struct wsemuldisplaydev_attach_args {
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int console; /* is it console? */
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struct wsscreen_list *scrdata; /* screen cfg info */
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const struct wsdisplay_accessops *accessops; /* access ops */
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void *accesscookie; /* access cookie */
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};
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#define wsemuldisplaydevcf_console cf_loc[0] /* spec'd as console? */
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#define WSEMULDISPLAYDEVCF_CONSOLE_UNK -1
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/*
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* Autoconfiguration helper functions.
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*/
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void wsdisplay_cnattach __P((const struct wsscreen_descr *, void *,
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int, int));
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int wsdisplaydevprint __P((void *, const char *));
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int wsemuldisplaydevprint __P((void *, const char *));
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/*
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* Console interface.
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*/
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void wsdisplay_cnputc __P((dev_t dev, int i));
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