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grf_obio.c revision 1.25.2.1
      1  1.25.2.1  mellon /*	$NetBSD: grf_obio.c,v 1.25.2.1 1997/11/09 20:03:58 mellon Exp $	*/
      2       1.1  briggs 
      3       1.1  briggs /*
      4       1.1  briggs  * Copyright (c) 1995 Allen Briggs.  All rights reserved.
      5       1.1  briggs  *
      6       1.1  briggs  * Redistribution and use in source and binary forms, with or without
      7       1.1  briggs  * modification, are permitted provided that the following conditions
      8       1.1  briggs  * are met:
      9       1.1  briggs  * 1. Redistributions of source code must retain the above copyright
     10       1.1  briggs  *    notice, this list of conditions and the following disclaimer.
     11       1.1  briggs  * 2. Redistributions in binary form must reproduce the above copyright
     12       1.1  briggs  *    notice, this list of conditions and the following disclaimer in the
     13       1.1  briggs  *    documentation and/or other materials provided with the distribution.
     14       1.1  briggs  * 3. All advertising materials mentioning features or use of this software
     15       1.1  briggs  *    must display the following acknowledgement:
     16       1.1  briggs  *	This product includes software developed by Allen Briggs.
     17       1.1  briggs  * 4. The name of the author may not be used to endorse or promote products
     18       1.1  briggs  *    derived from this software without specific prior written permission.
     19       1.1  briggs  *
     20       1.1  briggs  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21       1.1  briggs  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22       1.1  briggs  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23       1.1  briggs  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24       1.1  briggs  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25       1.1  briggs  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26       1.1  briggs  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27       1.1  briggs  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28       1.1  briggs  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29       1.1  briggs  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30       1.1  briggs  */
     31       1.1  briggs /*
     32       1.1  briggs  * Graphics display driver for the Macintosh internal video for machines
     33       1.1  briggs  * that don't map it into a fake nubus card.
     34       1.1  briggs  */
     35       1.1  briggs 
     36       1.1  briggs #include <sys/param.h>
     37       1.1  briggs 
     38       1.1  briggs #include <sys/device.h>
     39       1.1  briggs #include <sys/ioctl.h>
     40       1.1  briggs #include <sys/file.h>
     41       1.1  briggs #include <sys/malloc.h>
     42       1.1  briggs #include <sys/mman.h>
     43       1.1  briggs #include <sys/proc.h>
     44      1.11  briggs #include <sys/systm.h>
     45       1.1  briggs 
     46      1.18  briggs #include <machine/autoconf.h>
     47      1.17  scottr #include <machine/bus.h>
     48      1.17  scottr #include <machine/cpu.h>
     49       1.1  briggs #include <machine/grfioctl.h>
     50      1.18  briggs #include <machine/viareg.h>
     51       1.1  briggs 
     52      1.22  scottr #include <mac68k/dev/nubus.h>
     53      1.22  scottr #include <mac68k/dev/obiovar.h>
     54      1.22  scottr #include <mac68k/dev/grfvar.h>
     55       1.1  briggs 
     56       1.5  briggs extern u_int32_t	mac68k_vidlog;
     57       1.5  briggs extern u_int32_t	mac68k_vidphys;
     58      1.10  briggs extern long		videorowbytes;
     59      1.10  briggs extern long		videobitdepth;
     60      1.22  scottr extern u_long		videosize;
     61       1.5  briggs 
     62      1.11  briggs static int	grfiv_mode __P((struct grf_softc *gp, int cmd, void *arg));
     63      1.24  scottr static caddr_t	grfiv_phys __P((struct grf_softc *gp));
     64      1.16  scottr static int	grfiv_match __P((struct device *, struct cfdata *, void *));
     65      1.11  briggs static void	grfiv_attach __P((struct device *, struct device *, void *));
     66      1.11  briggs 
     67      1.12  scottr struct cfdriver intvid_cd = {
     68      1.12  scottr 	NULL, "intvid", DV_DULL
     69      1.12  scottr };
     70      1.12  scottr 
     71      1.12  scottr struct cfattach intvid_ca = {
     72      1.12  scottr 	sizeof(struct grfbus_softc), grfiv_match, grfiv_attach
     73      1.11  briggs };
     74      1.11  briggs 
     75      1.18  briggs #define QUADRA_DAFB_BASE	0xF9800000
     76      1.25  briggs #define CIVIC_CONTROL_BASE	0x50036000
     77      1.18  briggs 
     78      1.11  briggs static int
     79      1.16  scottr grfiv_match(parent, cf, aux)
     80      1.16  scottr 	struct device *parent;
     81      1.16  scottr 	struct cfdata *cf;
     82      1.16  scottr 	void *aux;
     83       1.1  briggs {
     84      1.22  scottr 	struct obio_attach_args *oa = (struct obio_attach_args *)aux;
     85      1.22  scottr 	bus_space_handle_t bsh;
     86      1.22  scottr 	int found, sense;
     87  1.25.2.1  mellon 	u_int	base;
     88      1.18  briggs 
     89      1.18  briggs 	found = 1;
     90      1.18  briggs 
     91      1.18  briggs         switch (current_mac_model->class) {
     92      1.20  briggs 	case MACH_CLASSQ:
     93      1.20  briggs 		/*
     94      1.20  briggs 		 * Assume DAFB for all of these, unless we can't
     95      1.20  briggs 		 * access the memory.
     96      1.20  briggs 		 */
     97  1.25.2.1  mellon 		base = QUADRA_DAFB_BASE;
     98      1.18  briggs 
     99  1.25.2.1  mellon 		if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) {
    100      1.18  briggs 			panic("failed to map space for DAFB regs.\n");
    101      1.18  briggs 		}
    102      1.18  briggs 
    103      1.20  briggs 		if (bus_probe(oa->oa_tag, bsh, 0x1C, 4) == 0) {
    104      1.20  briggs 			bus_space_unmap(oa->oa_tag, bsh, 0x1000);
    105      1.20  briggs 			found = 0;
    106      1.20  briggs 			goto nodafb;
    107      1.20  briggs 		}
    108      1.20  briggs 
    109      1.18  briggs 		sense = (bus_space_read_4(oa->oa_tag, bsh, 0x1C) & 7);
    110      1.18  briggs 
    111      1.18  briggs 		if (sense == 0)
    112      1.18  briggs 			found = 0;
    113      1.18  briggs 
    114      1.18  briggs 		/* Set "Turbo SCSI" configuration to default */
    115      1.18  briggs 		bus_space_write_4(oa->oa_tag, bsh, 0x24, 0x1d1); /* ch0 */
    116      1.18  briggs 		bus_space_write_4(oa->oa_tag, bsh, 0x28, 0x1d1); /* ch1 */
    117       1.1  briggs 
    118      1.18  briggs 		/* Disable interrupts */
    119      1.18  briggs 		bus_space_write_4(oa->oa_tag, bsh, 0x104, 0);
    120      1.18  briggs 
    121      1.18  briggs 		/* Clear any interrupts */
    122      1.18  briggs 		bus_space_write_4(oa->oa_tag, bsh, 0x10C, 0);
    123      1.18  briggs 		bus_space_write_4(oa->oa_tag, bsh, 0x110, 0);
    124      1.18  briggs 		bus_space_write_4(oa->oa_tag, bsh, 0x114, 0);
    125      1.18  briggs 
    126      1.18  briggs 		bus_space_unmap(oa->oa_tag, bsh, 0x1000);
    127      1.18  briggs 		break;
    128      1.18  briggs 
    129      1.25  briggs         case MACH_CLASSAV:
    130  1.25.2.1  mellon 		base = CIVIC_CONTROL_BASE;
    131  1.25.2.1  mellon 
    132  1.25.2.1  mellon 		if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) {
    133      1.25  briggs 			panic("failed to map space for CIVIC control regs.\n");
    134      1.25  briggs 		}
    135      1.25  briggs 		/* Disable interrupts */
    136      1.25  briggs 		bus_space_write_1(oa->oa_tag, bsh, 0x120, 0);
    137  1.25.2.1  mellon 
    138      1.25  briggs 		bus_space_unmap(oa->oa_tag, bsh, 0x1000);
    139      1.25  briggs 		break;
    140      1.25  briggs 
    141  1.25.2.1  mellon 	case MACH_CLASSQ2:
    142  1.25.2.1  mellon 		break;
    143  1.25.2.1  mellon 
    144      1.18  briggs 	default:
    145      1.20  briggs nodafb:
    146      1.18  briggs 		if (mac68k_vidlog == 0) {
    147      1.18  briggs 			found = 0;
    148      1.18  briggs 		}
    149      1.18  briggs 		break;
    150       1.2  briggs 	}
    151       1.7  briggs 
    152      1.18  briggs 	return found;
    153       1.1  briggs }
    154       1.1  briggs 
    155      1.18  briggs #define R4(sc, o) (bus_space_read_4((sc)->sc_tag, (sc)->sc_regh, o) & 0xfff)
    156      1.18  briggs 
    157      1.11  briggs static void
    158      1.11  briggs grfiv_attach(parent, self, aux)
    159      1.11  briggs 	struct device *parent, *self;
    160      1.11  briggs 	void   *aux;
    161       1.1  briggs {
    162      1.22  scottr 	struct obio_attach_args *oa = (struct obio_attach_args *)aux;
    163      1.22  scottr 	struct grfbus_softc *sc;
    164      1.22  scottr 	struct grfmode *gm;
    165  1.25.2.1  mellon 	u_int	base;
    166      1.11  briggs 
    167      1.22  scottr 	sc = (struct grfbus_softc *)self;
    168       1.1  briggs 
    169       1.1  briggs 	sc->card_id = 0;
    170       1.1  briggs 
    171      1.18  briggs         switch (current_mac_model->class) {
    172      1.18  briggs         case MACH_CLASSQ:
    173  1.25.2.1  mellon 		base=QUADRA_DAFB_BASE;
    174      1.18  briggs 		sc->sc_tag = oa->oa_tag;
    175  1.25.2.1  mellon 		if (bus_space_map(sc->sc_tag, base, 0x1000, 0, &sc->sc_regh)) {
    176      1.18  briggs 			panic("failed to map space for DAFB regs.\n");
    177      1.18  briggs 		}
    178      1.18  briggs 		printf(": DAFB: Monitor sense %x.\n", R4(sc,0x1C)&7);
    179      1.25  briggs 		bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x1000);
    180      1.18  briggs 		break;
    181  1.25.2.1  mellon         case MACH_CLASSQ2:
    182  1.25.2.1  mellon         case MACH_CLASSAV:
    183      1.18  briggs 	default:
    184      1.18  briggs 		printf(": Internal Video\n");
    185      1.18  briggs 		break;
    186      1.18  briggs 	}
    187       1.1  briggs 
    188       1.1  briggs 	gm = &(sc->curr_mode);
    189       1.1  briggs 	gm->mode_id = 0;
    190      1.10  briggs 	gm->psize = videobitdepth;
    191       1.1  briggs 	gm->ptype = 0;
    192      1.10  briggs 	gm->width = videosize & 0xffff;
    193      1.10  briggs 	gm->height = (videosize >> 16) & 0xffff;
    194      1.10  briggs 	gm->rowbytes = videorowbytes;
    195       1.1  briggs 	gm->hres = 80;		/* XXX Hack */
    196       1.1  briggs 	gm->vres = 80;		/* XXX Hack */
    197      1.10  briggs 	gm->fbsize = gm->rowbytes * gm->height;
    198      1.22  scottr 	gm->fbbase = (caddr_t)m68k_trunc_page(mac68k_vidlog);
    199      1.18  briggs 	gm->fboff = mac68k_vidlog & PGOFSET;
    200       1.1  briggs 
    201      1.12  scottr 	/* Perform common video attachment. */
    202      1.13  scottr 	grf_establish(sc, NULL, grfiv_mode, grfiv_phys);
    203       1.1  briggs }
    204       1.1  briggs 
    205      1.11  briggs static int
    206       1.1  briggs grfiv_mode(sc, cmd, arg)
    207       1.1  briggs 	struct grf_softc *sc;
    208       1.1  briggs 	int cmd;
    209       1.1  briggs 	void *arg;
    210       1.1  briggs {
    211       1.4  briggs 	switch (cmd) {
    212       1.4  briggs 	case GM_GRFON:
    213       1.4  briggs 	case GM_GRFOFF:
    214       1.4  briggs 		return 0;
    215       1.4  briggs 	case GM_CURRMODE:
    216       1.4  briggs 		break;
    217       1.4  briggs 	case GM_NEWMODE:
    218       1.4  briggs 		break;
    219       1.4  briggs 	case GM_LISTMODES:
    220       1.4  briggs 		break;
    221       1.4  briggs 	}
    222       1.4  briggs 	return EINVAL;
    223       1.5  briggs }
    224       1.5  briggs 
    225      1.11  briggs static caddr_t
    226      1.23  scottr grfiv_phys(gp)
    227       1.5  briggs 	struct grf_softc *gp;
    228       1.5  briggs {
    229       1.5  briggs 	/*
    230       1.5  briggs 	 * If we're using IIsi or similar, this will be 0.
    231       1.5  briggs 	 * If we're using IIvx or similar, this will be correct.
    232       1.5  briggs 	 */
    233      1.22  scottr 	return (caddr_t)mac68k_vidphys;
    234       1.1  briggs }
    235