e0cc03a09b
kqueue provides a stateful and efficient event notification framework currently supported events include socket, file, directory, fifo, pipe, tty and device changes, and monitoring of processes and signals kqueue is supported by all writable filesystems in NetBSD tree (with exception of Coda) and all device drivers supporting poll(2) based on work done by Jonathan Lemon for FreeBSD initial NetBSD port done by Luke Mewburn and Jason Thorpe
117 lines
4.4 KiB
C
117 lines
4.4 KiB
C
/* $NetBSD: fbvar.h,v 1.4 2002/10/23 09:13:55 jdolecek Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* 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 the University of
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* California, Lawrence Berkeley Laboratory.
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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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)fbvar.h 8.1 (Berkeley) 6/11/93
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*/
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/*
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* Frame buffer variables. All frame buffer drivers must provide the
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* following in order to participate.
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*/
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#include <sys/event.h>
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#ifdef RASTERCONSOLE
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#include <dev/rcons/rcons.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/rasops/rasops.h>
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#endif
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struct fbdriver {
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/* device unblank function (force kernel output to display) */
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void (*fbd_unblank)(struct device *);
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int (*fbd_open)(dev_t, int, int, struct proc *);
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int (*fbd_close)(dev_t, int, int, struct proc *);
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int (*fbd_ioctl)(dev_t, u_long, caddr_t, int, struct proc *);
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int (*fbd_poll)(dev_t, int, struct proc *);
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paddr_t (*fbd_mmap)(dev_t, off_t, int);
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int (*fbd_kqfilter)(dev_t, struct knote *);
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#ifdef notyet
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/*
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* XXX redundant idea? these can hook into rasops on a per-device
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* basis like: fb_rinfo.ri_ops.copycols = ....;
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*/
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void (*fbd_wrrop)(); /* `write region' rasterop */
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void (*fbd_cprop)(); /* `copy region' rasterop */
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void (*fbd_clrop)(); /* `clear region' rasterop */
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#endif
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};
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struct fbdevice {
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int fb_major; /* XXX */
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struct fbtype fb_type; /* what it says */
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caddr_t fb_pixels; /* display RAM */
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int fb_linebytes; /* bytes per display line */
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struct fbdriver *fb_driver; /* pointer to driver */
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struct device *fb_device; /* parameter for fbd_unblank */
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int fb_flags; /* misc. flags */
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#define FB_FORCE 0x00000001 /* force device into /dev/fb */
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#define FB_PFOUR 0x00010000 /* indicates fb is a pfour fb */
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#define FB_USERMASK (FB_FORCE) /* flags that the user can set */
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volatile u_int32_t *fb_pfour; /* pointer to pfour register */
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#ifdef RASTERCONSOLE
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/* Raster console emulator state */
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struct rconsole fb_rcons;
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struct rasops_info fb_rinfo;
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#endif
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};
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void fb_attach(struct fbdevice *, int);
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void fb_setsize_obp(struct fbdevice *, int, int, int, int);
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void fb_setsize_eeprom(struct fbdevice *, int, int, int);
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void fb_setsize_pfour(struct fbdevice *);
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int fb_is_console(int);
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#ifdef RASTERCONSOLE
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void fbrcons_init(struct fbdevice *);
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int fbrcons_rows(void);
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int fbrcons_cols(void);
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#endif
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int fb_pfour_id(volatile void *);
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int fb_pfour_get_video(struct fbdevice *);
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void fb_pfour_set_video(struct fbdevice *, int);
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