/* $NetBSD: bwtwo_any.c,v 1.18 2023/12/20 05:13:35 thorpej Exp $ */ /*- * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe and Matthew Fredette. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * @(#)bwtwo.c 8.1 (Berkeley) 6/11/93 */ /* * black&white display (bwtwo) driver. * * Does not handle interrupts, even though they can occur. * * P4 and overlay plane support by Jason R. Thorpe <thorpej@NetBSD.org>. * Overlay plane handling hints and ideas provided by Brad Spencer. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: bwtwo_any.c,v 1.18 2023/12/20 05:13:35 thorpej Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/device.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <sys/tty.h> #include <sys/conf.h> #include <machine/autoconf.h> #include <sun2/sun2/control.h> #include <dev/sun/fbio.h> #include <dev/sun/fbvar.h> #include <dev/sun/btreg.h> #include <sun2/dev/bwtworeg.h> #include <dev/sun/bwtwovar.h> /* autoconfiguration driver */ static int bwtwomatch_any(device_t, cfdata_t, void *); static void bwtwoattach_any(device_t, device_t, void *); struct bwtwosun2_softc { struct bwtwo_softc sc; bus_space_handle_t bh; }; CFATTACH_DECL_NEW(bwtwo_obio, sizeof(struct bwtwosun2_softc), bwtwomatch_any, bwtwoattach_any, NULL, NULL); CFATTACH_DECL_NEW(bwtwo_obmem, sizeof(struct bwtwosun2_softc), bwtwomatch_any, bwtwoattach_any, NULL, NULL); static int bwtwo_get_video_sun2(struct bwtwo_softc *); static void bwtwo_set_video_sun2(struct bwtwo_softc *, int); extern int fbnode; static int bwtwomatch_any(device_t parent, cfdata_t cf, void *aux) { struct mainbus_attach_args *ma = aux; bus_space_handle_t bh; int matched; /* Make sure there is something there... */ if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg), 0, &bh)) return (0); matched = (bus_space_peek_1(ma->ma_bustag, bh, 0, NULL) == 0); bus_space_unmap(ma->ma_bustag, bh, sizeof(struct bwtworeg)); return (matched); } static void bwtwoattach_any(device_t parent, device_t self, void *aux) { struct bwtwosun2_softc *scsun2 = device_private(self); struct bwtwo_softc *sc = &scsun2->sc; struct mainbus_attach_args *ma = aux; struct fbdevice *fb = &sc->sc_fb; bus_space_handle_t bh; int isconsole; const char *name; sc->sc_dev = self; /* Remember cookies for bwtwo_mmap() */ sc->sc_bustag = ma->ma_bustag; sc->sc_paddr = ma->ma_paddr; fb->fb_flags = device_cfdata(self)->cf_flags; fb->fb_type.fb_depth = 1; fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); isconsole = fb_is_console(0); /* A plain bwtwo */ sc->sc_reg = NULL; fb->fb_pfour = NULL; name = "bwtwo"; sc->sc_pixeloffset = BWREG_MEM; sc->sc_get_video = bwtwo_get_video_sun2; sc->sc_set_video = bwtwo_set_video_sun2; /* Map the registers. */ if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg), 0, &scsun2->bh)) { printf("%s: cannot map regs\n", device_xname(self)); return; } if (isconsole) { int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; if (bus_space_map(ma->ma_bustag, ma->ma_paddr + sc->sc_pixeloffset, ramsize, BUS_SPACE_MAP_LINEAR, &bh) != 0) { printf("%s: cannot map pixels\n", device_xname(self)); return; } sc->sc_fb.fb_pixels = (char *)bh; } bwtwoattach(sc, name, isconsole); } static void bwtwo_set_video_sun2(struct bwtwo_softc *sc, int enable) { struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc; unsigned char cr; cr = bus_space_read_1(sc->sc_bustag, scsun2->bh, 0); bus_space_write_1(sc->sc_bustag, scsun2->bh, 0, (enable ? (cr | BW2_CR_ENABLE_VIDEO) : (cr & ~BW2_CR_ENABLE_VIDEO))); return; } static int bwtwo_get_video_sun2(struct bwtwo_softc *sc) { struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc; return ((bus_space_read_1(sc->sc_bustag, scsun2->bh, 0) & BW2_CR_ENABLE_VIDEO) != 0); }
