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      1 /*	$NetBSD: bi_mainbus.c,v 1.12 2017/05/22 16:53:59 ragge Exp $	   */
      2 /*
      3  * Copyright (c) 1999 Ludd, University of Lule}, Sweden.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include <sys/cdefs.h>
     28 __KERNEL_RCSID(0, "$NetBSD: bi_mainbus.c,v 1.12 2017/05/22 16:53:59 ragge Exp $");
     29 
     30 #define _VAX_BUS_DMA_PRIVATE
     31 
     32 #include <sys/param.h>
     33 #include <sys/device.h>
     34 #include <sys/bus.h>
     35 #include <sys/cpu.h>
     36 
     37 #include <machine/nexus.h>
     38 #include <machine/sid.h>
     39 #include <machine/scb.h>
     40 #include <machine/mainbus.h>
     41 
     42 #include <dev/bi/bivar.h>
     43 #include <dev/bi/bireg.h>
     44 
     45 #include "ioconf.h"
     46 
     47 static	int bi_mainbus_match(device_t, cfdata_t, void *);
     48 static	void bi_mainbus_attach(device_t, device_t, void *);
     49 
     50 CFATTACH_DECL_NEW(bi_mainbus, sizeof(struct bi_softc),
     51     bi_mainbus_match, bi_mainbus_attach, NULL, NULL);
     52 
     53 static int
     54 bi_mainbus_match(device_t parent, cfdata_t cf, void *aux)
     55 {
     56 	struct mainbus_attach_args * const ma = aux;
     57 
     58 	return !strcmp(bi_cd.cd_name, ma->ma_type);
     59 }
     60 
     61 static void
     62 bi_mainbus_attach(device_t parent, device_t self, void *aux)
     63 {
     64 	struct bi_softc * const sc = device_private(self);
     65 	struct mainbus_attach_args * const ma = aux;
     66 
     67 	sc->sc_dev = self;
     68 	/*
     69 	 * Fill in bus specific data.
     70 	 */
     71 	sc->sc_addr = (bus_addr_t)BI_BASE(0, 0);
     72 	sc->sc_iot = ma->ma_iot;	/* No special I/O handling */
     73 	sc->sc_dmat = ma->ma_dmat;	/* No special DMA handling either */
     74 	sc->sc_intcpu = 1 << mfpr(PR_BINID);
     75 	sc->sc_lastiv = 256; /* Lowest available vector address */
     76 
     77 	bi_attach(sc);
     78 }
     79