441 lines
9.5 KiB
C
441 lines
9.5 KiB
C
/* $NetBSD: grf.c,v 1.17 1996/12/20 12:49:36 leo Exp $ */
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/*
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* Copyright (c) 1995 Leo Weppelman
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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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* from: Utah $Hdr: grf.c 1.31 91/01/21$
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*
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* @(#)grf.c 7.8 (Berkeley) 5/7/91
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*/
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/*
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* Graphics display driver for the Atari
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* This is the hardware-independent portion of the driver.
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* Hardware access is through the grf_softc->g_mode routine.
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*/
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/file.h>
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#include <sys/malloc.h>
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#include <sys/conf.h>
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#include <sys/systm.h>
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#include <sys/vnode.h>
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#include <sys/mman.h>
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#include <sys/poll.h>
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#include <vm/vm.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_page.h>
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#include <vm/vm_pager.h>
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#include <machine/cpu.h>
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#include <atari/atari/device.h>
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#include <atari/dev/grfioctl.h>
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#include <atari/dev/grfabs_reg.h>
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#include <atari/dev/grfvar.h>
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#include <atari/dev/itevar.h>
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#include <atari/dev/viewioctl.h>
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#include <atari/dev/viewvar.h>
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#include "grfcc.h"
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#include "grfet.h"
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#define NGRF (NGRFCC + NGRFET)
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#if NGRF > 0
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#include "ite.h"
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#if NITE == 0
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#define ite_on(u,f)
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#define ite_off(u,f)
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#define ite_reinit(d)
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#endif
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int grfon __P((dev_t));
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int grfoff __P((dev_t));
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int grfsinfo __P((dev_t, struct grfdyninfo *));
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#ifdef BANKEDDEVPAGER
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int grfbanked_get __P((dev_t, off_t, int));
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int grfbanked_cur __P((dev_t));
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int grfbanked_set __P((dev_t, int));
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#endif
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int grfbusprint __P((void *auxp, const char *));
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int grfbusmatch __P((struct device *, struct cfdata *, void *));
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void grfbusattach __P((struct device *, struct device *, void *));
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/*
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* pointers to grf drivers device structs
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*/
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struct grf_softc *grfsp[NGRF]; /* XXX */
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struct cfattach grfbus_ca = {
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sizeof(struct device), grfbusmatch, grfbusattach
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};
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struct cfdriver grfbus_cd = {
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NULL, "grfbus", DV_DULL
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};
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/*
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* only used in console init.
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*/
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static struct cfdata *cfdata_gbus = NULL;
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int
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grfbusmatch(pdp, cfp, auxp)
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struct device *pdp;
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struct cfdata *cfp;
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void *auxp;
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{
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if(strcmp(auxp, grfbus_cd.cd_name))
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return(0);
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if(atari_realconfig == 0)
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cfdata_gbus = cfp;
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return(1); /* Always there */
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}
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void
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grfbusattach(pdp, dp, auxp)
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struct device *pdp, *dp;
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void *auxp;
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{
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grf_auxp_t grf_auxp;
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grf_auxp.busprint = grfbusprint;
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grf_auxp.from_bus_match = 1;
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if(dp == NULL) /* Console init */
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atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint);
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else {
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printf("\n");
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config_found(dp, (void*)&grf_auxp, grfbusprint);
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}
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}
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int
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grfbusprint(auxp, name)
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void *auxp;
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const char *name;
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{
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if(name == NULL)
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return(UNCONF);
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return(QUIET);
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}
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/*ARGSUSED*/
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int
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grfopen(dev, flags, devtype, p)
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dev_t dev;
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int flags, devtype;
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struct proc *p;
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{
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struct grf_softc *gp;
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if (GRFUNIT(dev) >= NGRF)
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return(ENXIO);
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gp = grfsp[GRFUNIT(dev)];
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if ((gp->g_flags & GF_ALIVE) == 0)
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return(ENXIO);
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if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE))
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return(EBUSY);
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grf_viewsync(gp);
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return(0);
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}
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/*ARGSUSED*/
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int
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grfclose(dev, flags, mode, p)
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dev_t dev;
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int flags;
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int mode;
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struct proc *p;
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{
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struct grf_softc *gp;
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gp = grfsp[GRFUNIT(dev)];
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(void)grfoff(dev);
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gp->g_flags &= GF_ALIVE;
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return(0);
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}
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/*ARGSUSED*/
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int
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grfioctl(dev, cmd, data, flag, p)
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dev_t dev;
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u_long cmd;
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int flag;
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caddr_t data;
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struct proc *p;
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{
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struct grf_softc *gp;
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int error;
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gp = grfsp[GRFUNIT(dev)];
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error = 0;
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switch (cmd) {
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case OGRFIOCGINFO:
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/* argl.. no bank-member.. */
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bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4);
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break;
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case GRFIOCGINFO:
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bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo));
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break;
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case GRFIOCON:
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error = grfon(dev);
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break;
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case GRFIOCOFF:
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error = grfoff(dev);
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break;
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case GRFIOCSINFO:
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error = grfsinfo(dev, (struct grfdyninfo *) data);
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break;
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case GRFGETVMODE:
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return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0));
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case GRFSETVMODE:
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error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0);
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if (error == 0 && gp->g_itedev)
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ite_reinit(gp->g_itedev);
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break;
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case GRFGETNUMVM:
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return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0));
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/*
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* these are all hardware dependant, and have to be resolved
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* in the respective driver.
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*/
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case GRFIOCPUTCMAP:
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case GRFIOCGETCMAP:
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case GRFIOCSSPRITEPOS:
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case GRFIOCGSPRITEPOS:
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case GRFIOCSSPRITEINF:
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case GRFIOCGSPRITEINF:
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case GRFIOCGSPRITEMAX:
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default:
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/*
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* check to see whether it's a command recognized by the
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* view code.
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*/
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return(viewioctl(gp->g_viewdev, cmd, data, flag, p));
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error = EINVAL;
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break;
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}
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return(error);
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}
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/*ARGSUSED*/
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int
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grfpoll(dev, events, p)
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dev_t dev;
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int events;
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struct proc *p;
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{
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int revents = 0;
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if (events & (POLLOUT | POLLWRNORM))
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revents |= events & (POLLOUT | POLLWRNORM);
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return (revents);
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}
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/*
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* map the contents of a graphics display card into process'
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* memory space.
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*/
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int
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grfmmap(dev, off, prot)
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dev_t dev;
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int off, prot;
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{
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struct grf_softc *gp;
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struct grfinfo *gi;
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gp = grfsp[GRFUNIT(dev)];
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gi = &gp->g_display;
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/*
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* frame buffer
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*/
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if ((off >= 0) && (off < gi->gd_fbsize))
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return (((u_int)gi->gd_fbaddr + off) >> PGSHIFT);
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return(-1);
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}
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int
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grfon(dev)
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dev_t dev;
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{
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struct grf_softc *gp;
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gp = grfsp[GRFUNIT(dev)];
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if (gp->g_flags & GF_GRFON)
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return(0);
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gp->g_flags |= GF_GRFON;
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if (gp->g_itedev != NODEV)
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ite_off(gp->g_itedev, 3);
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return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON,
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NULL, 0, 0));
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}
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int
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grfoff(dev)
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dev_t dev;
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{
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struct grf_softc *gp;
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int error;
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gp = grfsp[GRFUNIT(dev)];
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if ((gp->g_flags & GF_GRFON) == 0)
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return(0);
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gp->g_flags &= ~GF_GRFON;
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error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF,
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NULL, 0, 0);
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/*
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* Closely tied together no X's
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*/
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if (gp->g_itedev != NODEV)
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ite_on(gp->g_itedev, 2);
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return(error);
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}
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int
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grfsinfo(dev, dyninfo)
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dev_t dev;
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struct grfdyninfo *dyninfo;
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{
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struct grf_softc *gp;
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int error;
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gp = grfsp[GRFUNIT(dev)];
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error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0);
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/*
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* Closely tied together no X's
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*/
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if (gp->g_itedev != NODEV)
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ite_reinit(gp->g_itedev);
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return(error);
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}
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/*
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* Get the grf-info in sync with underlying view.
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*/
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void
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grf_viewsync(gp)
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struct grf_softc *gp;
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{
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struct view_size vs;
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bmap_t bm;
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struct grfinfo *gi;
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gi = &gp->g_display;
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viewioctl(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 0, NOPROC);
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gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */
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gi->gd_fbaddr = bm.hw_address;
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gi->gd_fbsize = bm.depth*bm.bytes_per_row*bm.rows;
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gi->gd_regaddr = bm.hw_regs;
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gi->gd_regsize = bm.reg_size;
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if(viewioctl(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, NOPROC)) {
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/*
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* fill in some default values...
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* XXX: Should _never_ happen
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*/
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vs.width = 640;
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vs.height = 400;
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vs.depth = 1;
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}
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gi->gd_colors = 1 << vs.depth;
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gi->gd_planes = vs.depth;
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gi->gd_fbwidth = vs.width;
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gi->gd_fbheight = vs.height;
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gi->gd_dyn.gdi_fbx = 0;
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gi->gd_dyn.gdi_fby = 0;
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gi->gd_dyn.gdi_dwidth = vs.width;
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gi->gd_dyn.gdi_dheight = vs.height;
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gi->gd_dyn.gdi_dx = 0;
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gi->gd_dyn.gdi_dy = 0;
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}
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/*
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* Change the mode of the display.
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* Right now all we can do is grfon/grfoff.
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* Return a UNIX error number or 0 for success.
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*/
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/*ARGSUSED*/
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int
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grf_mode(gp, cmd, arg, a2, a3)
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struct grf_softc *gp;
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int cmd, a2, a3;
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void *arg;
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{
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switch (cmd) {
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case GM_GRFON:
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/*
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* Get in sync with view, ite might have changed it.
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*/
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grf_viewsync(gp);
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viewioctl(gp->g_viewdev, VIOCDISPLAY, NULL, 0, NOPROC);
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return(0);
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case GM_GRFOFF:
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viewioctl(gp->g_viewdev, VIOCREMOVE, NULL, 0, NOPROC);
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return(0);
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case GM_GRFCONFIG:
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default:
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break;
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}
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return(EINVAL);
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}
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#endif /* NGRF > 0 */
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