560 lines
12 KiB
C
560 lines
12 KiB
C
/* $NetBSD: grf.c,v 1.1.1.1 1995/03/26 07:12:12 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 <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 "grf.h"
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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 grfopen __P((dev_t, int, int, struct proc *));
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int grfclose __P((dev_t, int));
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int grfioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
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int grfselect __P((dev_t, int));
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int grfmap __P((dev_t, int, int));
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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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static void grf_viewsync __P((struct grf_softc *));
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static int grf_mode __P((struct grf_softc *, int, void *, int, int));
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int grfbusprint __P((void *auxp, 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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void grfattach __P((struct device *, struct device *, void *));
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int grfmatch __P((struct device *, struct cfdata *, void *));
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int grfprint __P((void *, char *));
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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];
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struct cfdriver grfbuscd = {
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NULL, "grfbus", (cfmatch_t)grfbusmatch, grfbusattach, DV_DULL,
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sizeof(struct device)
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};
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struct cfdriver grfcd = {
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NULL, "grf", (cfmatch_t)grfmatch, grfattach, DV_DULL,
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sizeof(struct grf_softc), NULL, 0
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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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static struct cfdata *cfdata_grf = 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, grfbuscd.cd_name))
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return(0);
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if((atari_realconfig == 0) || (cfdata_gbus == NULL)) {
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/*
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* Probe layers we depend on
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*/
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if(grfabs_probe() == 0)
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return(0);
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viewprobe();
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if(atari_realconfig == 0) {
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/*
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* XXX: console init opens view 0
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*/
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if(viewopen(0, 0))
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return(0);
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cfdata_gbus = cfp;
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}
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}
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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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static int did_cons = 0;
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int i;
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if(dp == NULL) { /* Console init */
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did_cons = 1;
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i = 0;
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atari_config_found(cfdata_gbus, NULL, (void*)&i, grfbusprint);
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}
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else {
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printf("\n");
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for(i = 0; i < NGRF; i++) {
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/*
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* Skip opening view[0] when we this is the console.
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*/
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if(!did_cons || (i > 0))
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if(viewopen(i, 0))
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break;
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config_found(dp, (void*)&i, grfbusprint);
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}
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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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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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int
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grfmatch(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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int unit = *(int*)auxp;
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/*
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* Match only on unit indicated by grfbus attach.
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*/
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if(cfp->cf_unit != unit)
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return(0);
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cfdata_grf = cfp;
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return(1);
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}
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/*
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* attach: initialize the grf-structure and try to attach an ite to us.
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* note : dp is NULL during early console init.
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*/
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void
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grfattach(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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extern struct view_softc views[];
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static struct grf_softc congrf;
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struct grf_softc *gp;
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int maj;
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/*
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* find our major device number
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*/
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for(maj = 0; maj < nchrdev; maj++)
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if (cdevsw[maj].d_open == grfopen)
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break;
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/*
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* Handle exeption case: early console init
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*/
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if(dp == NULL) {
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congrf.g_unit = 0;
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congrf.g_grfdev = makedev(maj, 0);
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congrf.g_flags = GF_ALIVE;
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congrf.g_mode = grf_mode;
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congrf.g_conpri = grfcc_cnprobe();
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congrf.g_view = views[0].view; /* XXX */
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congrf.g_viewdev = congrf.g_unit;
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grfcc_iteinit(&congrf);
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grf_viewsync(&congrf);
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/* Attach console ite */
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atari_config_found(cfdata_grf, NULL, &congrf, grfprint);
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return;
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}
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gp = (struct grf_softc *)dp;
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gp->g_unit = gp->g_device.dv_unit;
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grfsp[gp->g_unit] = gp;
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if((cfdata_grf != NULL) && (gp->g_unit == 0)) {
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/*
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* We inited earlier just copy the info, take care
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* not to copy the device struct though.
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*/
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bcopy(&congrf.g_display, &gp->g_display,
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(char *)&gp[1] - (char *)&gp->g_display);
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}
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else {
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gp->g_grfdev = makedev(maj, gp->g_unit);
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gp->g_flags = GF_ALIVE;
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gp->g_mode = grf_mode;
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gp->g_conpri = 0;
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gp->g_view = views[gp->g_unit].view; /* XXX */
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gp->g_viewdev = gp->g_unit;
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grfcc_iteinit(gp);
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grf_viewsync(gp);
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}
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printf(": width %d height %d", gp->g_display.gd_dwidth,
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gp->g_display.gd_dheight);
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if(gp->g_display.gd_colors == 2)
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printf(" monochrome\n");
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else printf(" colors %d\n", gp->g_display.gd_colors);
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/*
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* try and attach an ite
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*/
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config_found(dp, gp, grfprint);
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}
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int
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grfprint(auxp, pnp)
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void *auxp;
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char *pnp;
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{
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if(pnp)
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printf("ite at %s", pnp);
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return(UNCONF);
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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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return(0);
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}
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/*ARGSUSED*/
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int
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grfclose(dev, flags)
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dev_t dev;
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int flags;
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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));
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case GRFSETVMODE:
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error = gp->g_mode(gp, GM_GRFSETVMODE, data);
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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));
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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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if(gp->g_view != NULL)
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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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grfselect(dev, rw)
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dev_t dev;
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int rw;
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{
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if (rw == FREAD)
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return(0);
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return(1);
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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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grfmap(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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panic("No grfmap\n"); /* LWP */
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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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}
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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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/*
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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);
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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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static 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, &bm, 0, -1);
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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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if(viewioctl(gp->g_viewdev, VIOCGSIZE, &vs, 0, -1)) {
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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 = 2;
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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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static 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) {
|
|
case GM_GRFON:
|
|
/*
|
|
* Get in sync with view, ite might have changed it.
|
|
*/
|
|
grf_viewsync(gp);
|
|
viewioctl(gp->g_viewdev, VIOCDISPLAY, NULL, 0, -1);
|
|
return(0);
|
|
case GM_GRFOFF:
|
|
viewioctl(gp->g_viewdev, VIOCREMOVE, NULL, 0, -1);
|
|
return(0);
|
|
case GM_GRFCONFIG:
|
|
default:
|
|
break;
|
|
}
|
|
return(EINVAL);
|
|
}
|
|
#endif /* NGRF > 0 */
|