4cf8aa1d7f
device properties - all it needs is width and height in pixels, stride in bytes, depth in bits and the framebuffer address. Features: - unaccelerated fb console with colours and virtual consoles - split into console handling and bus frontend - so far there is only a PCI bus frontend which allows to mmap BARs belonging to the graphics controller, others should be easy to add. TODO: - find an opaque way to change the palette ( probably pass a function pointer as property ) since this would need to call some firmware interface which is pretty much always MD - find a clean way to mmap the framebuffer, just returning the physical address works on macppc but not on other architectures. Problem is, that we cannot rely on the address being a bus address - on macppc it is, but for instance on sparc64 it's not.
74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/* $NetBSD: genfbvar.h,v 1.1 2007/04/07 03:41:26 macallan Exp $ */
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/*-
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* Copyright (c) 2007 Michael Lorenz
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* 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. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: genfbvar.h,v 1.1 2007/04/07 03:41:26 macallan Exp $");
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#ifndef GENFBVAR_H
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#define GENFBVAR_H
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#include <sys/param.h>
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#include <sys/buf.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wscons/wsdisplay_vconsvar.h>
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struct genfb_ops {
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int (*genfb_ioctl)(void *, void *, u_long, void *, int, struct lwp *);
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paddr_t (*genfb_mmap)(void *, void *, off_t, int);
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};
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struct genfb_softc {
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struct device sc_dev;
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struct vcons_data vd;
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struct genfb_ops sc_ops;
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struct vcons_screen sc_console_screen;
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struct wsscreen_descr sc_defaultscreen_descr;
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const struct wsscreen_descr *sc_screens[1];
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struct wsscreen_list sc_screenlist;
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paddr_t sc_fbaddr;
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int sc_width, sc_height, sc_stride, sc_depth;
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size_t sc_fbsize;
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int sc_mode;
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u_char sc_cmap_red[256];
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u_char sc_cmap_green[256];
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u_char sc_cmap_blue[256];
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};
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int genfb_attach(struct genfb_softc *, struct genfb_ops *);
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#endif /* GENFBVAR_H */
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