/* $NetBSD: vidc20.c,v 1.12 2005/08/26 13:19:34 drochner Exp $ */ /* * Copyright (c) 1997 Mark Brinicombe * Copyright (c) 1997 Causality Limited * 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 Mark Brinicombe * 4. The name of the company nor the name of the author may 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 AUTHORS 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. * * RiscBSD kernel project * * vidc20.c * * VIDC20 driver * * Created : 22/02/97 */ #include __KERNEL_RCSID(0, "$NetBSD: vidc20.c,v 1.12 2005/08/26 13:19:34 drochner Exp $"); #include #include #include #include #include #include #include #include #include #include #include "locators.h" struct vidc20_softc { struct device sc_dev; bus_space_tag_t sc_iot; }; static int vidcmatch(struct device *, struct cfdata *, void *); static void vidcattach(struct device *, struct device *, void *); static int vidcsearch(struct device *, struct cfdata *, const int *, void *); /* * vidc_base gives the base of the VIDC chip in memory; this is for * the rest isnt busspaceified yet. Initialised with VIDC_BASE for * backwards compatibility. */ int *vidc_base = (int *)VIDC_BASE; /* * vidc_fref is the reference frequency in Mhz of the detected VIDC * (dependent on IOMD/IOC) * XXX default is RPC600 ? */ int vidc_fref = 24000000; CFATTACH_DECL(vidc, sizeof (struct vidc20_softc), vidcmatch, vidcattach, NULL, NULL); /* * vidcmatch() * * VIDC20 is a write only device so we cannot probe it * We must assume things are ok. */ static int vidcmatch(struct device *parent, struct cfdata *cf, void *aux) { return(1); } /* * vidcsearch() * * search routine used during the config of children */ static int vidcsearch(struct device *parent, struct cfdata *cf, const int *ldesc, void *aux) { if (config_match(parent, cf, NULL) > 0) config_attach(parent, cf, NULL, NULL); return (0); } /* * vidcattach() * * Configure all the child devices of the VIDC */ static void vidcattach(struct device *parent, struct device *self, void *aux) { struct vidc20_softc *sc = (struct vidc20_softc *)self; struct mainbus_attach_args *mb = aux; sc->sc_iot = mb->mb_iot; /* * Since the VIDC is write-only, infer the type of VIDC from the * type of IOMD. */ switch (IOMD_ID) { case ARM7500_IOC_ID: printf(": ARM7500 video and sound macrocell\n"); vidc_fref = 32000000; break; case ARM7500FE_IOC_ID: printf(": ARM7500FE video and sound macrocell\n"); vidc_fref = 32000000; break; default: /* XXX default? */ case RPC600_IOMD_ID: printf(": VIDC20\n"); vidc_fref = 24000000; break; }; config_search_ia(vidcsearch, self, "vidc", NULL); } /* End of vidc20.c */