sys/arch/algor/dev/lpt_mainbus.c

   1 /*      $NetBSD: lpt_mainbus.c,v 1.9 2008/04/28 20:23:10 martin Exp $   */
   2
   3 /*-
   4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>                  /* RCS ID & Copyright macro defns */
  33
  34 __KERNEL_RCSID(0, "$NetBSD: lpt_mainbus.c,v 1.9 2008/04/28 20:23:10 martin Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/ioctl.h>
  39 #include <sys/select.h>
  40 #include <sys/tty.h>
  41 #include <sys/proc.h>
  42 #include <sys/conf.h>
  43 #include <sys/file.h>
  44 #include <sys/uio.h>
  45 #include <sys/kernel.h>
  46 #include <sys/syslog.h>
  47 #include <sys/types.h>
  48 #include <sys/device.h>
  49
  50 #include <machine/autoconf.h>
  51 #include <machine/intr.h>
  52 #include <machine/bus.h>
  53
  54 #include <dev/ic/lptreg.h>
  55 #include <dev/ic/lptvar.h>
  56
  57 struct lpt_mainbus_softc {
  58         struct lpt_softc sc_lpt;        /* real "lpt" softc */
  59
  60         /* mainbus-specific goo. */
  61         void    *sc_ih;                 /* interrupt handler */
  62 };
  63
  64 int     lpt_mainbus_match(device_t, cfdata_t , void *);
  65 void    lpt_mainbus_attach(device_t, device_t, void *);
  66
  67 CFATTACH_DECL_NEW(lpt_mainbus, sizeof(struct lpt_mainbus_softc),
  68     lpt_mainbus_match, lpt_mainbus_attach, NULL, NULL);
  69
  70 int
  71 lpt_mainbus_match(device_t parent, cfdata_t match, void *aux)
  72 {
  73         struct mainbus_attach_args *ma = aux;
  74
  75         /* Always present. */
  76         if (strcmp(ma->ma_name, match->cf_name) == 0)
  77                 return (1);
  78
  79         return (0);
  80 }
  81
  82 void
  83 lpt_mainbus_attach(device_t parent, device_t self, void *aux)
  84 {
  85         struct lpt_mainbus_softc *msc = device_private(self);
  86         struct lpt_softc *sc = &msc->sc_lpt;
  87         struct mainbus_attach_args *ma = aux;
  88
  89         sc->sc_dev = self;
  90         sc->sc_iot = ma->ma_st;
  91
  92         if (bus_space_map(sc->sc_iot, ma->ma_addr, LPT_NPORTS, 0,
  93             &sc->sc_ioh) != 0) {
  94                 aprint_error(": can't map i/o space\n");
  95                 return;
  96         }
  97
  98         aprint_normal("\n");
  99         aprint_naive("\n");
 100
 101         lpt_attach_subr(sc);
 102
 103         sc->sc_ih = (*algor_intr_establish)(ma->ma_irq, lptintr, sc);
 104         if (msc->sc_ih == NULL) {
 105                 aprint_normal_dev(self, "unable to establish interrupt\n");
 106                 return;
 107         }
 108 }