/* $OpenBSD: grf_iv.c,v 1.40 2006/01/30 20:47:15 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 #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; 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; dc->nscreens = 0; /* 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++; } }