/* $NetBSD: grf_obio.c,v 1.40 1998/08/21 13:46:31 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 "opt_grf.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include 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; static int grfiv_mode __P((struct grf_softc *gp, int cmd, void *arg)); static int grfiv_match __P((struct device *, struct cfdata *, void *)); static void grfiv_attach __P((struct device *, struct device *, void *)); struct cfattach intvid_ca = { sizeof(struct grfbus_softc), grfiv_match, grfiv_attach }; #define DAFB_BASE 0xf9000000 #define DAFB_CONTROL_BASE 0xf9800000 #define CIVIC_BASE 0x50100000 #define CIVIC_CONTROL_BASE 0x50036000 #define VALKYRIE_BASE 0xf9000000 #define VALKYRIE_CONTROL_BASE 0x50f2a000 static int grfiv_match(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct obio_attach_args *oa = (struct obio_attach_args *)aux; bus_space_handle_t bsh; int found; u_int base; found = 1; switch (current_mac_model->class) { case MACH_CLASSQ2: if (current_mac_model->machineid != MACH_MACLC575) { base = VALKYRIE_CONTROL_BASE; if (bus_space_map(oa->oa_tag, base, 0x40, 0, &bsh)) return 0; /* Disable interrupts */ bus_space_write_1(oa->oa_tag, bsh, 0x18, 0x1); 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. */ base = DAFB_CONTROL_BASE; if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) return 0; if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x1c, 4) == 0) { bus_space_unmap(oa->oa_tag, bsh, 0x1000); return 0; } /* Set "Turbo SCSI" configuration to default */ bus_space_write_4(oa->oa_tag, bsh, 0x24, 0x1d1); /* ch0 */ bus_space_write_4(oa->oa_tag, bsh, 0x28, 0x1d1); /* ch1 */ /* Disable interrupts */ bus_space_write_4(oa->oa_tag, bsh, 0x104, 0); /* Clear any interrupts */ bus_space_write_4(oa->oa_tag, bsh, 0x10C, 0); bus_space_write_4(oa->oa_tag, bsh, 0x110, 0); bus_space_write_4(oa->oa_tag, bsh, 0x114, 0); bus_space_unmap(oa->oa_tag, bsh, 0x1000); break; case MACH_CLASSAV: base = CIVIC_CONTROL_BASE; if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) return 0; /* Disable interrupts */ bus_space_write_1(oa->oa_tag, bsh, 0x120, 0); bus_space_unmap(oa->oa_tag, bsh, 0x1000); break; default: if (mac68k_vidlen == 0) found = 0; break; } return found; } static void grfiv_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct obio_attach_args *oa = (struct obio_attach_args *)aux; struct grfbus_softc *sc; struct grfmode *gm; u_long base, length; u_int32_t vbase1, vbase2; sc = (struct grfbus_softc *)self; sc->card_id = 0; 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; printf(" @ %lx: Valkyrie video subsystem\n", sc->sc_basepa + sc->sc_fbofs); break; } /* See note in grfiv_match() */ /*FALLTHROUGH*/ case MACH_CLASSQ: base = DAFB_CONTROL_BASE; sc->sc_tag = oa->oa_tag; if (bus_space_map(sc->sc_tag, base, 0x1000, 0, &sc->sc_regh)) { printf(": failed to map DAFB register space\n"); 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; vbase2 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x4) & 0xf; sc->sc_fbofs = (vbase1 << 9) | (vbase2 << 5); #if 1 /* * XXX The following hack exists because the DAFB v7 in these * systems doesn't compute fbofs correctly. (sar 19980813) */ switch (current_mac_model->machineid) { case MACH_MACLC475: case MACH_MACLC475_33: case MACH_MACLC575: sc->sc_fbofs = 0x1000; break; } #endif printf(" @ %lx: DAFB video subsystem, monitor sense %x\n", sc->sc_basepa + sc->sc_fbofs, (bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x1c) & 0x7)); bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x1000); 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; printf(" @ %lx: Civic video subsystem\n", sc->sc_basepa + sc->sc_fbofs); break; default: sc->sc_basepa = m68k_trunc_page(mac68k_vidphys); sc->sc_fbofs = mac68k_vidphys & PGOFSET; length = mac68k_vidlen + sc->sc_fbofs; printf(" @ %lx: On-board video\n", sc->sc_basepa + sc->sc_fbofs); 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); return; } if (sc->sc_basepa <= mac68k_vidphys && mac68k_vidphys < (sc->sc_basepa + length)) videoaddr = sc->sc_handle + sc->sc_fbofs; /* XXX big ol' hack */ gm = &(sc->curr_mode); gm->mode_id = 0; gm->psize = videobitdepth; gm->ptype = 0; gm->width = videosize & 0xffff; gm->height = (videosize >> 16) & 0xffff; gm->rowbytes = videorowbytes; gm->hres = 80; /* XXX hack */ gm->vres = 80; /* XXX hack */ gm->fbsize = gm->height * gm->rowbytes; gm->fbbase = (caddr_t)sc->sc_handle; /* XXX yet another hack */ gm->fboff = sc->sc_fbofs; /* Perform common video attachment. */ grf_establish(sc, NULL, grfiv_mode); } static int grfiv_mode(sc, cmd, arg) struct grf_softc *sc; int cmd; void *arg; { switch (cmd) { case GM_GRFON: case GM_GRFOFF: return 0; case GM_CURRMODE: break; case GM_NEWMODE: break; case GM_LISTMODES: break; } return EINVAL; }