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spc.c revision 1.33 
      1 /*	$NetBSD: spc.c,v 1.33 2008/03/31 15:20:47 tsutsui Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jarle Greipsland, Charles M. Hannum and Masaru Oki.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: spc.c,v 1.33 2008/03/31 15:20:47 tsutsui Exp $");
     41 
     42 #include "opt_ddb.h"
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/kernel.h>
     47 #include <sys/device.h>
     48 
     49 #include <machine/bus.h>
     50 #include <machine/cpu.h>
     51 
     52 #include <dev/scsipi/scsi_all.h>
     53 #include <dev/scsipi/scsipi_all.h>
     54 #include <dev/scsipi/scsiconf.h>
     55 
     56 #include <arch/x68k/dev/intiovar.h>
     57 #include <arch/x68k/dev/scsiromvar.h>
     58 #include <arch/x68k/x68k/iodevice.h>
     59 
     60 #include <dev/ic/mb89352var.h>
     61 #include <dev/ic/mb89352reg.h>
     62 
     63 static int spc_intio_match(device_t, cfdata_t, void *);
     64 static void spc_intio_attach(device_t, device_t, void *);
     65 
     66 CFATTACH_DECL_NEW(spc_intio, sizeof(struct spc_softc),
     67     spc_intio_match, spc_intio_attach, NULL, NULL);
     68 
     69 static int
     70 spc_intio_match(device_t parent, cfdata_t cf, void *aux)
     71 {
     72 	struct intio_attach_args *ia = aux;
     73 	bus_space_tag_t iot = ia->ia_bst;
     74 	bus_space_handle_t ioh;
     75 
     76 	ia->ia_size = 0x20;
     77 
     78 	if (intio_map_allocate_region(device_parent(parent), ia,
     79 				      INTIO_MAP_TESTONLY) < 0)
     80 		return 0;
     81 
     82 	if (bus_space_map(iot, ia->ia_addr, 0x20, BUS_SPACE_MAP_SHIFTED,
     83 			  &ioh) < 0)
     84 		return 0;
     85 	if (badaddr(INTIO_ADDR(ia->ia_addr + BDID)))
     86 		return 0;
     87 	bus_space_unmap(iot, ioh, 0x20);
     88 
     89 	return 1;
     90 }
     91 
     92 static void
     93 spc_intio_attach(device_t parent, device_t self, void *aux)
     94 {
     95 	struct spc_softc *sc = device_private(self);
     96 	struct intio_attach_args *ia = aux;
     97 	bus_space_tag_t iot = ia->ia_bst;
     98 	bus_space_handle_t ioh;
     99 
    100 	sc->sc_dev = self;
    101 
    102 	intio_map_allocate_region(device_parent(parent), ia,
    103 				  INTIO_MAP_ALLOCATE);
    104 	if (bus_space_map(iot, ia->ia_addr, 0x20, BUS_SPACE_MAP_SHIFTED,
    105 			  &ioh)) {
    106 		aprint_error(": can't map i/o space\n");
    107 		return;
    108 	}
    109 	aprint_normal("\n");
    110 
    111 	sc->sc_iot = iot;
    112 	sc->sc_ioh = ioh;
    113 	sc->sc_initiator = IODEVbase->io_sram[0x70] & 0x7; /* XXX */
    114 
    115 	if (intio_intr_establish(ia->ia_intr, "spc", spc_intr, sc))
    116 		panic("spcattach: interrupt vector busy");
    117 
    118 	spc_attach(sc);
    119 }
    120