/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)fbvar.h 8.1 (Berkeley) 6/11/93
*/
/*
* Frame buffer variables. All frame buffer drivers must provide the
* following in order to participate.
*/
struct fbdriver {
/* device unblank function (force kernel output to display) */
void (*fbd_unblank)(device_t);
int (*fbd_open)(dev_t, int, int, struct lwp *);
int (*fbd_close)(dev_t, int, int, struct lwp *);
int (*fbd_ioctl)(dev_t, u_long, void *, int, struct lwp *);
int (*fbd_poll)(dev_t, int, struct lwp *);
paddr_t (*fbd_mmap)(dev_t, off_t, int);
int (*fbd_kqfilter)(dev_t, struct knote *);
#ifdef notyet
/*
* XXX redundant idea? these can hook into rasops on a per-device
* basis like: fb_rinfo.ri_ops.copycols = ....;
*/
void (*fbd_wrrop)(); /* `write region' rasterop */
void (*fbd_cprop)(); /* `copy region' rasterop */
void (*fbd_clrop)(); /* `clear region' rasterop */
#endif
};
struct fbdevice {
int fb_major; /* XXX */
struct fbtype fb_type; /* what it says */
void * fb_pixels; /* display RAM */
int fb_linebytes; /* bytes per display line */
struct fbdriver *fb_driver; /* pointer to driver */
device_t fb_device; /* parameter for fbd_unblank */
int fb_flags; /* misc. flags */
#define FB_FORCE 0x00000001 /* force device into /dev/fb */
#define FB_PFOUR 0x00010000 /* indicates fb is a pfour fb */
#define FB_USERMASK (FB_FORCE) /* flags that the user can set */
volatile u_int32_t *fb_pfour; /* pointer to pfour register */
};
