sys/dev/xmi/bi_xmi.c

   1 /*      $NetBSD: bi_xmi.c,v 1.8 2009/05/12 13:22:58 cegger Exp $        */
   2
   3 /*
   4  * Copyright (c) 2000 Ludd, University of Lule}, Sweden. 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  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed at Ludd, University of
  17  *      Lule}, Sweden and its contributors.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33
  34 /*
  35  * DWMBA XMI-BI adapter.
  36  */
  37
  38 #include <sys/cdefs.h>
  39 __KERNEL_RCSID(0, "$NetBSD: bi_xmi.c,v 1.8 2009/05/12 13:22:58 cegger Exp $");
  40
  41 #include <sys/param.h>
  42 #include <sys/device.h>
  43
  44 #include <sys/bus.h>
  45
  46 #include <dev/xmi/xmireg.h>
  47 #include <dev/xmi/xmivar.h>
  48
  49 #include <dev/bi/bireg.h>
  50 #include <dev/bi/bivar.h>
  51
  52 #include "locators.h"
  53
  54 static int
  55 bi_xmi_match(device_t parent, cfdata_t cf, void *aux)
  56 {
  57         struct xmi_attach_args *xa = aux;
  58
  59         if (bus_space_read_2(xa->xa_iot, xa->xa_ioh, XMI_TYPE) != XMIDT_DWMBA)
  60                 return 0;
  61
  62         if (cf->cf_loc[XMICF_NODE] != XMICF_NODE_DEFAULT &&
  63             cf->cf_loc[XMICF_NODE] != xa->xa_nodenr)
  64                 return 0;
  65
  66         return 1;
  67 }
  68
  69 static void
  70 bi_xmi_attach(device_t parent, device_t self, void *aux)
  71 {
  72         struct bi_softc *sc = device_private(self);
  73         struct xmi_attach_args *xa = aux;
  74
  75         /*
  76          * Fill in bus specific data.
  77          */
  78         sc->sc_dev = self;
  79         sc->sc_addr = (bus_addr_t)BI_BASE(xa->xa_nodenr, 0);
  80         sc->sc_iot = xa->xa_iot; /* No special I/O handling */
  81         sc->sc_dmat = xa->xa_dmat; /* No special DMA handling either */
  82         sc->sc_intcpu = xa->xa_intcpu;
  83
  84         bi_attach(sc);
  85 }
  86
  87 CFATTACH_DECL_NEW(bi_xmi, sizeof(struct bi_softc),
  88     bi_xmi_match, bi_xmi_attach, NULL, NULL);