sys/arch/arc/jazz/oosiop_jazzio.c

   1 /* $NetBSD: oosiop_jazzio.c,v 1.5 2006/04/15 08:49:47 tsutsui Exp $ */
   2
   3 /*
   4  * Copyright (c) 2001 Shuichiro URATA.  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. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __KERNEL_RCSID(0, "$NetBSD: oosiop_jazzio.c,v 1.5 2006/04/15 08:49:47 tsutsui Exp $");
  31
  32 #include <sys/param.h>
  33 #include <sys/systm.h>
  34 #include <sys/device.h>
  35 #include <sys/buf.h>
  36 #include <sys/malloc.h>
  37
  38 #include <dev/scsipi/scsi_all.h>
  39 #include <dev/scsipi/scsipi_all.h>
  40 #include <dev/scsipi/scsiconf.h>
  41 #include <dev/scsipi/scsi_message.h>
  42
  43 #include <machine/cpu.h>
  44 #include <machine/autoconf.h>
  45 #include <machine/bus.h>
  46
  47 #include <dev/ic/oosiopreg.h>
  48 #include <dev/ic/oosiopvar.h>
  49 #include <arc/jazz/jazziovar.h>
  50
  51 #include "ioconf.h"
  52
  53 int     oosiop_jazzio_match(device_t, cfdata_t, void *);
  54 void    oosiop_jazzio_attach(device_t, device_t, void *);
  55
  56 CFATTACH_DECL_NEW(oosiop_jazzio, sizeof(struct oosiop_softc),
  57     oosiop_jazzio_match, oosiop_jazzio_attach, NULL, NULL);
  58
  59 /*
  60  * Match driver based on name
  61  */
  62 int
  63 oosiop_jazzio_match(device_t parent, cfdata_t cf, void *aux)
  64 {
  65         struct jazzio_attach_args *ja = aux;
  66
  67         if (strcmp(ja->ja_name, "NCRC700") != 0)
  68                 return 0;
  69
  70         return 1;
  71 }
  72
  73 void
  74 oosiop_jazzio_attach(device_t parent, device_t self, void *aux)
  75 {
  76         struct oosiop_softc *sc = device_private(self);
  77         struct jazzio_attach_args *ja = aux;
  78         int i, scid;
  79
  80         sc->sc_dev = self;
  81         sc->sc_bst = ja->ja_bust;
  82         sc->sc_dmat = ja->ja_dmat;
  83
  84         if (bus_space_map(sc->sc_bst, ja->ja_addr,
  85             OOSIOP_NREGS, 0, &sc->sc_bsh) != 0) {
  86                 aprint_error(": failed to map regsters\n");
  87                 return;
  88         }
  89
  90         sc->sc_chip = OOSIOP_700_66;
  91         sc->sc_freq = 50000000;
  92
  93         /* Preserve host id */
  94         scid = oosiop_read_1(sc, OOSIOP_SCID);
  95         for (i = 0; i < OOSIOP_NTGT; i++)
  96                 if (scid & (1 << i))
  97                         break;
  98         if (i == OOSIOP_NTGT)
  99                 i = OOSIOP_NTGT - 1;
 100
 101         sc->sc_id = i;
 102
 103         jazzio_intr_establish(ja->ja_intr, (intr_handler_t)oosiop_intr, sc);
 104
 105         oosiop_attach(sc);
 106 }