/* $OpenBSD: grf_iv.c,v 1.41 2006/03/13 22:35:17 miod Exp $ */
/* $NetBSD: grf_iv.c,v 1.17 1997/02/20 00:23:27 scottr Exp $ */
/*
* Copyright (C) 1998 Scott Reynolds
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1995 Allen Briggs. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Allen Briggs.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Graphics display driver for the Macintosh internal video for machines
* that don't map it into a fake nubus card.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/viareg.h>
#include <uvm/uvm_extern.h>
#include <mac68k/dev/nubus.h>
#include <mac68k/dev/obiovar.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <mac68k/dev/macfbvar.h>
extern u_int32_t mac68k_vidphys;
extern u_int32_t mac68k_vidlen;
extern long videoaddr;
extern long videorowbytes;
extern long videobitdepth;
extern u_long videosize;
int macfb_obio_match(struct device *, void *, void *);
void macfb_obio_attach(struct device *, struct device *, void *);
struct cfattach macfb_obio_ca = {
sizeof(struct macfb_softc), macfb_obio_match, macfb_obio_attach
};
#define DAFB_BASE 0xf9000000
#define DAFB_CONTROL_BASE 0xf9800000
#define DAFB_CMAP_BASE 0xf9800200
#define CIVIC_BASE 0x50100000
#define CIVIC_CONTROL_BASE 0x50036000
#define VALKYRIE_BASE 0xf9000000
#define VALKYRIE_CONTROL_BASE 0x50f2a000
void dafb_setcolor(void *, u_int, u_int);
int
macfb_obio_match(struct device *parent, void *vcf, void *aux)
{
struct obio_attach_args *oa = (struct obio_attach_args *)aux;
bus_space_handle_t bsh;
static int found;
if (found != 0)
return (0);
found = 1;
switch (current_mac_model->class) {
case MACH_CLASSQ2:
if (current_mac_model->machineid != MACH_MACLC575)
break;
/*
* Note: the only system in this class that does not have
* the Valkyrie chip -- at least, that we know of -- is
* the Performa/LC 57x series. This system has a version
* of the DAFB controller, instead.
*
* If this assumption proves false, we'll have to be more
* intelligent here.
*/
/*FALLTHROUGH*/
case MACH_CLASSQ:
/*
* Assume DAFB for all of these, unless we can't
* access the memory.
*/
if (bus_space_map(oa->oa_tag, DAFB_CONTROL_BASE, 0x120, 0,
&bsh) != 0)
return (0);
if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x1c, 4) == 0 ||
mac68k_bus_space_probe(oa->oa_tag, bsh, 0x104, 4) == 0)
found = 0;
bus_space_unmap(oa->oa_tag, bsh, 0x120);
break;
case MACH_CLASSAV:
break;
case MACH_CLASSIIci:
case MACH_CLASSIIsi:
if (mac68k_vidlen == 0 ||
(via2_reg(rMonitor) & RBVMonitorMask) == RBVMonIDNone)
found = 0;
break;
default:
if (mac68k_vidlen == 0)
found = 0;
break;
}
return (found);
}
void
macfb_obio_attach(struct device *parent, struct device *self, void *aux)
{
struct obio_attach_args *oa = (struct obio_attach_args *) aux;
struct macfb_softc *sc = (struct macfb_softc *)self;
u_long length;
u_int32_t vbase1, vbase2;
struct macfb_devconfig *dc;
sc->card_id = 0;
sc->sc_tag = oa->oa_tag;
dc = malloc(sizeof(*dc), M_DEVBUF, M_WAITOK);
bzero(dc, sizeof(*dc));
switch (current_mac_model->class) {
case MACH_CLASSQ2:
if (current_mac_model->machineid != MACH_MACLC575) {
sc->sc_basepa = VALKYRIE_BASE;
length = 0x00100000; /* 1MB */
if (sc->sc_basepa <= mac68k_vidphys &&
mac68k_vidphys < (sc->sc_basepa + length))
sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa;
else
sc->sc_fbofs = 0;
#ifdef DEBUG
printf(" @ %lx", sc->sc_basepa + sc->sc_fbofs);
#endif
if (bus_space_map(sc->sc_tag, VALKYRIE_CONTROL_BASE,
0x40, 0, &sc->sc_regh) != 0) {
printf(": can't map Valkyrie registers\n");
free(dc, M_DEVBUF);
return;
}
/* Disable interrupts */
bus_space_write_1(sc->sc_tag, sc->sc_regh, 0x18, 0x1);
bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x40);
printf(": Valkyrie\n");
break;
}
/*
* Note: the only system in this class that does not have
* the Valkyrie chip -- at least, that we know of -- is
* the Performa/LC 57x series. This system has a version
* of the DAFB controller, instead.
*
* If this assumption proves false, we'll have to be more
* intelligent here.
*/
/*FALLTHROUGH*/
case MACH_CLASSQ:
if (bus_space_map(sc->sc_tag, DAFB_CONTROL_BASE, 0x120, 0,
&sc->sc_regh)) {
printf(": can't map DAFB registers\n");
free(dc, M_DEVBUF);
return;
}
sc->sc_basepa = DAFB_BASE;
length = 0x00100000; /* 1MB */
/* Compute the current frame buffer offset */
vbase1 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x0) & 0xfff;
/*
* XXX The following exists because the DAFB v7 in these
* systems doesn't return reasonable values to use for fbofs.
* Ken'ichi Ishizaka gets credit for this hack. (sar 19990426)
* (Does this get us the correct result for _all_ DAFB-
* equipped systems and monitor combinations? It seems
* possible, if not likely...)
*/
switch (current_mac_model->machineid) {
case MACH_MACLC475:
case MACH_MACLC475_33:
case MACH_MACLC575:
case MACH_MACQ605:
case MACH_MACQ605_33:
vbase1 &= 0x3f;
break;
}
vbase2 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x4) & 0xf;
sc->sc_fbofs = (vbase1 << 9) | (vbase2 << 5);
#ifdef DEBUG
printf(" @ %lx", sc->sc_basepa + sc->sc_fbofs);
#endif
/* Disable interrupts */
bus_space_write_4(sc->sc_tag, sc->sc_regh, 0x104, 0);
/* Clear any pending interrupts */
bus_space_write_4(sc->sc_tag, sc->sc_regh, 0x10C, 0);
bus_space_write_4(sc->sc_tag, sc->sc_regh, 0x110, 0);
bus_space_write_4(sc->sc_tag, sc->sc_regh, 0x114, 0);
printf(": DAFB, monitor sense %x\n",
(bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x1c) & 0x7));
bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x120);
if (bus_space_map(sc->sc_tag, DAFB_CMAP_BASE, 0x20, 0,
&sc->sc_regh) == 0) {
dc->dc_cmapregs = (vaddr_t)bus_space_vaddr(sc->sc_tag,
sc->sc_regh);
dc->dc_setcolor = dafb_setcolor;
}
break;
case MACH_CLASSAV:
sc->sc_basepa = CIVIC_BASE;
length = 0x00200000; /* 2MB */
if (sc->sc_basepa <= mac68k_vidphys &&
mac68k_vidphys < (sc->sc_basepa + length))
sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa;
else
sc->sc_fbofs = 0;
#ifdef DEBUG
printf(" @ %lx", sc->sc_basepa + sc->sc_fbofs);
#endif
if (bus_space_map(sc->sc_tag, CIVIC_CONTROL_BASE, PAGE_SIZE,
0, &sc->sc_regh) != 0) {
printf(": can't map Civic registers\n");
free(dc, M_DEVBUF);
return;
}
/* Disable interrupts */
bus_space_write_1(sc->sc_tag, sc->sc_regh, 0x120, 0);
bus_space_unmap(sc->sc_tag, sc->sc_regh, PAGE_SIZE);
printf(": Civic\n");
break;
case MACH_CLASSIIci:
case MACH_CLASSIIsi:
sc->sc_basepa = trunc_page(mac68k_vidphys);
sc->sc_fbofs = m68k_page_offset(mac68k_vidphys);
length = mac68k_vidlen + sc->sc_fbofs;
#ifdef DEBUG
printf(" @ %lx: RBV", sc->sc_basepa + sc->sc_fbofs);
switch (via2_reg(rMonitor) & RBVMonitorMask) {
case RBVMonIDBWP:
printf(", 15\" monochrome portrait");
break;
case RBVMonIDRGB12:
printf(", 12\" color");
break;
case RBVMonIDRGB15:
printf(", 15\" color");
break;
case RBVMonIDStd:
printf(", Macintosh II");
break;
default:
printf(", unrecognized");
break;
}
printf(" display\n");
#else
printf(": RBV\n");
#endif
break;
default:
sc->sc_basepa = trunc_page(mac68k_vidphys);
sc->sc_fbofs = m68k_page_offset(mac68k_vidphys);
length = mac68k_vidlen + sc->sc_fbofs;
#ifdef DEBUG
printf(" @ %lx:", sc->sc_basepa + sc->sc_fbofs);
#endif
printf(": On-board video\n");
break;
}
if (bus_space_map(sc->sc_tag, sc->sc_basepa, length, 0,
&sc->sc_handle)) {
printf("%s: failed to map video RAM\n", sc->sc_dev.dv_xname);
free(dc, M_DEVBUF);
return;
}
if (sc->sc_basepa <= mac68k_vidphys &&
mac68k_vidphys < (sc->sc_basepa + length))
videoaddr =
(vaddr_t)bus_space_vaddr(sc->sc_tag, sc->sc_handle) +
sc->sc_fbofs;
dc->dc_vaddr = (vaddr_t)bus_space_vaddr(sc->sc_tag, sc->sc_handle);
dc->dc_paddr = sc->sc_basepa;
dc->dc_offset = sc->sc_fbofs;
dc->dc_wid = videosize & 0xffff;
dc->dc_ht = (videosize >> 16) & 0xffff;
dc->dc_depth = videobitdepth;
dc->dc_rowbytes = videorowbytes;
dc->dc_size = dc->dc_ht * dc->dc_rowbytes;
/* Perform common video attachment. */
macfb_attach_common(sc, dc);
}
/*
* Basic indexed modes palette handling.
*/
void
dafb_setcolor(void *v, u_int start, u_int end)
{
struct macfb_devconfig *dc = v;
u_int i;
u_int8_t *c;
c = dc->dc_cmap;
/*
* DAFB can not start a colormap update at a color index different
* than zero, so we need to reprogram all slots below the requested
* range.
*/
*(volatile u_int32_t *)(dc->dc_cmapregs) = 0;
for (i = 0; i < end; i++) {
*(volatile u_int8_t *)(dc->dc_cmapregs + 0x13) = *c++;
*(volatile u_int8_t *)(dc->dc_cmapregs + 0x13) = *c++;
*(volatile u_int8_t *)(dc->dc_cmapregs + 0x13) = *c++;
}
}
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