381 lines
8.9 KiB
C
381 lines
8.9 KiB
C
/* $NetBSD: grf.c,v 1.47 2003/01/01 00:28:57 thorpej Exp $ */
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/*
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.47 2003/01/01 00:28:57 thorpej Exp $");
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/*
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* Graphics display driver for the Amiga
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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/systm.h>
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#include <sys/vnode.h>
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#include <sys/mman.h>
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#include <uvm/uvm_extern.h>
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#include <machine/cpu.h>
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#include <dev/sun/fbio.h>
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#include <amiga/amiga/color.h> /* DEBUG */
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#include <amiga/amiga/device.h>
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#include <amiga/dev/grfioctl.h>
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#include <amiga/dev/grfvar.h>
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#include <amiga/dev/itevar.h>
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#include <amiga/dev/viewioctl.h>
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#include <sys/conf.h>
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#include "view.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 grfon(dev_t);
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int grfoff(dev_t);
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int grfsinfo(dev_t, struct grfdyninfo *);
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void grfattach(struct device *, struct device *, void *);
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int grfmatch(struct device *, struct cfdata *, void *);
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int grfprint(void *, const 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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CFATTACH_DECL(grf, sizeof(struct device),
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grfmatch, grfattach, NULL, NULL);
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dev_type_open(grfopen);
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dev_type_close(grfclose);
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dev_type_ioctl(grfioctl);
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dev_type_mmap(grfmmap);
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const struct cdevsw grf_cdevsw = {
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grfopen, grfclose, nullread, nullwrite, grfioctl,
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nostop, notty, nopoll, grfmmap, nokqfilter,
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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;
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/*
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* match if the unit of grf matches its perspective
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* low level board driver.
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*/
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int
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grfmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
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{
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if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit)
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return(0);
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cfdata = cfp;
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return(1);
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}
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/*
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* attach.. plug pointer in and print some info.
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* then try and attach an ite to us. note: dp is NULL
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* durring console init.
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*/
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void
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grfattach(struct device *pdp, struct device *dp, void *auxp)
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{
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struct grf_softc *gp;
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int maj;
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gp = (struct grf_softc *)pdp;
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grfsp[gp->g_unit] = (struct grf_softc *)pdp;
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/*
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* find our major device number
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*/
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maj = cdevsw_lookup_major(&grf_cdevsw);
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gp->g_grfdev = makedev(maj, gp->g_unit);
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if (dp != NULL) {
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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
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printf(" colors %d\n", gp->g_display.gd_colors);
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}
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/*
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* try and attach an ite
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*/
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amiga_config_found(cfdata, dp, gp, grfprint);
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}
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int
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grfprint(void *auxp, const char *pnp)
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{
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if (pnp)
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aprint_normal("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_t dev, int flags, int devtype, struct proc *p)
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{
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struct grf_softc *gp;
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if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL)
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return(ENXIO);
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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_t dev, int flags, int mode, 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_t dev, u_long cmd, caddr_t data, int flag, 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 && !(gp->g_flags & GF_GRFON))
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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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case GRFIOCBITBLT:
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case GRFIOCSETMON:
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case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on
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Amiga. 15/11/94 ill */
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/*
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* We need the minor dev number to get the overlay/image
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* information for grf_ul.
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*/
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return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev));
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case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */
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case FBIOSVIDEO:
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error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev);
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if (!error)
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gp->g_blank = *(int *)data;
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return (error);
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case FBIOGVIDEO:
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*(int *)data = gp->g_blank;
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return (0);
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default:
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#if NVIEW > 0
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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 if the unit is 0
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* XXX
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*/
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if (GRFUNIT(dev) == 0) {
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extern const struct cdevsw view_cdevsw;
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return((*view_cdevsw.d_ioctl)(dev, cmd, data, flag, p));
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}
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#endif
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error = EPASSTHROUGH;
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break;
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}
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return(error);
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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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paddr_t
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grfmmap(dev_t dev, off_t off, int 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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* control registers
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*/
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if (off >= 0 && off < gi->gd_regsize)
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return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT);
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/*
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* frame buffer
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*/
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if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) {
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off -= gi->gd_regsize;
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return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT);
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}
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/* bogus */
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return(-1);
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}
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int
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grfon(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_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_t dev, 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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#endif /* NGRF > 0 */
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