361 lines
10 KiB
C
361 lines
10 KiB
C
/* $NetBSD: grf_obio.c,v 1.41 1999/01/06 07:08:19 scottr Exp $ */
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/*
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* Copyright (C) 1998 Scott Reynolds
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* All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1995 Allen Briggs. All rights reserved.
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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 Allen Briggs.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Graphics display driver for the Macintosh internal video for machines
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* that don't map it into a fake nubus card.
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*/
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#include "opt_grf.h"
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/file.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <machine/autoconf.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/grfioctl.h>
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#include <machine/viareg.h>
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#include <mac68k/nubus/nubus.h>
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#include <mac68k/obio/obiovar.h>
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#include <mac68k/dev/grfvar.h>
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extern u_int32_t mac68k_vidphys;
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extern u_int32_t mac68k_vidlen;
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extern long videoaddr;
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extern long videorowbytes;
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extern long videobitdepth;
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extern u_long videosize;
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static int grfiv_mode __P((struct grf_softc *gp, int cmd, void *arg));
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static int grfiv_match __P((struct device *, struct cfdata *, void *));
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static void grfiv_attach __P((struct device *, struct device *, void *));
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struct cfattach intvid_ca = {
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sizeof(struct grfbus_softc), grfiv_match, grfiv_attach
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};
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#define DAFB_BASE 0xf9000000
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#define DAFB_CONTROL_BASE 0xf9800000
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#define CIVIC_BASE 0x50100000
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#define CIVIC_CONTROL_BASE 0x50036000
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#define VALKYRIE_BASE 0xf9000000
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#define VALKYRIE_CONTROL_BASE 0x50f2a000
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static int
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grfiv_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct obio_attach_args *oa = (struct obio_attach_args *)aux;
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bus_space_handle_t bsh;
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int found;
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u_int base;
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found = 1;
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switch (current_mac_model->class) {
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case MACH_CLASSQ2:
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if (current_mac_model->machineid != MACH_MACLC575) {
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base = VALKYRIE_CONTROL_BASE;
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if (bus_space_map(oa->oa_tag, base, 0x40, 0, &bsh))
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return 0;
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/* Disable interrupts */
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bus_space_write_1(oa->oa_tag, bsh, 0x18, 0x1);
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break;
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}
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/*
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* Note: the only system in this class that does not have
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* the Valkyrie chip -- at least, that we know of -- is
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* the Performa/LC 57x series. This system has a version
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* of the DAFB controller, instead.
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*
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* If this assumption proves false, we'll have to be more
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* intelligent here.
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*/
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/*FALLTHROUGH*/
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case MACH_CLASSQ:
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/*
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* Assume DAFB for all of these, unless we can't
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* access the memory.
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*/
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base = DAFB_CONTROL_BASE;
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if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh))
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return 0;
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if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x1c, 4) == 0) {
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bus_space_unmap(oa->oa_tag, bsh, 0x1000);
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return 0;
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}
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/* Set "Turbo SCSI" configuration to default */
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bus_space_write_4(oa->oa_tag, bsh, 0x24, 0x1d1); /* ch0 */
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bus_space_write_4(oa->oa_tag, bsh, 0x28, 0x1d1); /* ch1 */
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/* Disable interrupts */
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bus_space_write_4(oa->oa_tag, bsh, 0x104, 0);
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/* Clear any interrupts */
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bus_space_write_4(oa->oa_tag, bsh, 0x10C, 0);
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bus_space_write_4(oa->oa_tag, bsh, 0x110, 0);
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bus_space_write_4(oa->oa_tag, bsh, 0x114, 0);
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bus_space_unmap(oa->oa_tag, bsh, 0x1000);
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break;
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case MACH_CLASSAV:
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base = CIVIC_CONTROL_BASE;
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if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh))
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return 0;
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/* Disable interrupts */
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bus_space_write_1(oa->oa_tag, bsh, 0x120, 0);
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bus_space_unmap(oa->oa_tag, bsh, 0x1000);
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break;
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case MACH_CLASSIIci:
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case MACH_CLASSIIsi:
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if (mac68k_vidlen == 0 ||
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(via2_reg(rMonitor) & RBVMonitorMask) == RBVMonIDNone)
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found = 0;
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break;
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default:
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if (mac68k_vidlen == 0)
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found = 0;
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break;
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}
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return found;
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}
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static void
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grfiv_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct obio_attach_args *oa = (struct obio_attach_args *)aux;
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struct grfbus_softc *sc;
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struct grfmode *gm;
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u_long base, length;
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u_int32_t vbase1, vbase2;
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sc = (struct grfbus_softc *)self;
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sc->card_id = 0;
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switch (current_mac_model->class) {
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case MACH_CLASSQ2:
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if (current_mac_model->machineid != MACH_MACLC575) {
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sc->sc_basepa = VALKYRIE_BASE;
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length = 0x00100000; /* 1MB */
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if (sc->sc_basepa <= mac68k_vidphys &&
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mac68k_vidphys < (sc->sc_basepa + length))
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sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa;
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else
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sc->sc_fbofs = 0;
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printf(" @ %lx: Valkyrie video subsystem\n",
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sc->sc_basepa + sc->sc_fbofs);
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break;
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}
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/* See note in grfiv_match() */
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/*FALLTHROUGH*/
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case MACH_CLASSQ:
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base = DAFB_CONTROL_BASE;
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sc->sc_tag = oa->oa_tag;
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if (bus_space_map(sc->sc_tag, base, 0x1000, 0, &sc->sc_regh)) {
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printf(": failed to map DAFB register space\n");
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return;
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}
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sc->sc_basepa = DAFB_BASE;
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length = 0x00100000; /* 1MB */
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/* Compute the current frame buffer offset */
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vbase1 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x0) & 0xfff;
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vbase2 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x4) & 0xf;
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sc->sc_fbofs = (vbase1 << 9) | (vbase2 << 5);
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#if 1
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/*
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* XXX The following hack exists because the DAFB v7 in these
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* systems doesn't compute fbofs correctly. (sar 19980813)
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*/
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switch (current_mac_model->machineid) {
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case MACH_MACLC475:
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case MACH_MACLC475_33:
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case MACH_MACLC575:
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sc->sc_fbofs = 0x1000;
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break;
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}
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#endif
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printf(" @ %lx: DAFB video subsystem, monitor sense %x\n",
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sc->sc_basepa + sc->sc_fbofs,
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(bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x1c) & 0x7));
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bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x1000);
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break;
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case MACH_CLASSAV:
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sc->sc_basepa = CIVIC_BASE;
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length = 0x00200000; /* 2MB */
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if (sc->sc_basepa <= mac68k_vidphys &&
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mac68k_vidphys < (sc->sc_basepa + length))
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sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa;
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else
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sc->sc_fbofs = 0;
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printf(" @ %lx: Civic video subsystem\n",
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sc->sc_basepa + sc->sc_fbofs);
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break;
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case MACH_CLASSIIci:
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case MACH_CLASSIIsi:
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sc->sc_basepa = m68k_trunc_page(mac68k_vidphys);
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sc->sc_fbofs = mac68k_vidphys & PGOFSET;
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length = mac68k_vidlen + sc->sc_fbofs;
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printf(" @ %lx: RBV video subsystem, ",
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sc->sc_basepa + sc->sc_fbofs);
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switch (via2_reg(rMonitor) & RBVMonitorMask) {
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case RBVMonIDBWP:
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printf("15\" monochrome portrait");
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break;
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case RBVMonIDRGB12:
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printf("12\" color");
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break;
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case RBVMonIDRGB15:
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printf("15\" color");
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break;
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case RBVMonIDStd:
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printf("Macintosh II");
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break;
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default:
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printf("unrecognized");
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break;
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}
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printf(" display\n");
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break;
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default:
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sc->sc_basepa = m68k_trunc_page(mac68k_vidphys);
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sc->sc_fbofs = mac68k_vidphys & PGOFSET;
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length = mac68k_vidlen + sc->sc_fbofs;
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printf(" @ %lx: On-board video\n",
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sc->sc_basepa + sc->sc_fbofs);
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break;
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}
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if (bus_space_map(sc->sc_tag, sc->sc_basepa, length, 0,
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&sc->sc_handle)) {
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printf("%s: failed to map video RAM\n", sc->sc_dev.dv_xname);
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return;
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}
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if (sc->sc_basepa <= mac68k_vidphys &&
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mac68k_vidphys < (sc->sc_basepa + length))
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videoaddr = sc->sc_handle + sc->sc_fbofs; /* XXX big ol' hack */
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gm = &(sc->curr_mode);
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gm->mode_id = 0;
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gm->psize = videobitdepth;
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gm->ptype = 0;
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gm->width = videosize & 0xffff;
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gm->height = (videosize >> 16) & 0xffff;
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gm->rowbytes = videorowbytes;
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gm->hres = 80; /* XXX hack */
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gm->vres = 80; /* XXX hack */
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gm->fbsize = gm->height * gm->rowbytes;
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gm->fbbase = (caddr_t)sc->sc_handle; /* XXX yet another hack */
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gm->fboff = sc->sc_fbofs;
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/* Perform common video attachment. */
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grf_establish(sc, NULL, grfiv_mode);
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}
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static int
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grfiv_mode(sc, cmd, arg)
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struct grf_softc *sc;
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int cmd;
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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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case GM_GRFOFF:
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return 0;
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case GM_CURRMODE:
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break;
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case GM_NEWMODE:
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break;
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case GM_LISTMODES:
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break;
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}
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return EINVAL;
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}
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