sys/arch/amiga/dev/lpt_supio.c

   1 /*      $NetBSD: lpt_supio.c,v 1.12 2008/04/28 20:23:12 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Ignatios Souvatzis.
   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>
  33 __KERNEL_RCSID(0, "$NetBSD: lpt_supio.c,v 1.12 2008/04/28 20:23:12 martin Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/ioctl.h>
  38 #include <sys/select.h>
  39 #include <sys/tty.h>
  40 #include <sys/proc.h>
  41 #include <sys/conf.h>
  42 #include <sys/file.h>
  43 #include <sys/uio.h>
  44 #include <sys/kernel.h>
  45 #include <sys/syslog.h>
  46 #include <sys/types.h>
  47 #include <sys/device.h>
  48
  49 #include <machine/intr.h>
  50 #include <machine/bus.h>
  51
  52 #include <dev/ic/lptreg.h>
  53 #include <dev/ic/lptvar.h>
  54
  55 #include <amiga/dev/supio.h>
  56
  57 struct lptsupio_softc {
  58         struct lpt_softc sc_lpt;
  59         struct isr sc_isr;
  60         void (*sc_intack)(void *);
  61 };
  62
  63 int lpt_supio_match(device_t, cfdata_t , void *);
  64 void lpt_supio_attach(device_t, device_t, void *);
  65 int lpt_supio_intr(void *p);
  66
  67 CFATTACH_DECL_NEW(lpt_supio, sizeof(struct lptsupio_softc),
  68     lpt_supio_match, lpt_supio_attach, NULL, NULL);
  69
  70 int
  71 lpt_supio_match(device_t parent, cfdata_t match, void *aux)
  72 {
  73         struct supio_attach_args *supa = aux;
  74
  75         if (strcmp(supa->supio_name,"lpt"))
  76                 return 0;
  77
  78         return (1);
  79 }
  80
  81 int
  82 lpt_supio_intr(void *p)
  83 {
  84         struct lptsupio_softc *sc = (void *)p;
  85         int rc;
  86
  87         rc = lptintr(&sc->sc_lpt);
  88         if (sc->sc_intack)
  89                 (*sc->sc_intack)(p);
  90         return (rc);
  91 }
  92
  93 void
  94 lpt_supio_attach(device_t parent, device_t self, void *aux)
  95 {
  96         struct lptsupio_softc *sc = device_private(self);
  97         struct lpt_softc *lsc = &sc->sc_lpt;
  98         int iobase;
  99         bus_space_tag_t iot;
 100         struct supio_attach_args *supa = aux;
 101
 102         /*
 103          * We're living on a superio chip.
 104          */
 105         lsc->sc_dev = self;
 106         iobase = supa->supio_iobase;
 107         iot = lsc->sc_iot = supa->supio_iot;
 108         sc->sc_intack = (void *)supa->supio_arg;
 109
 110         aprint_normal(" port 0x%04x ipl %d\n", iobase, supa->supio_ipl);
 111         if (bus_space_map(iot, iobase, LPT_NPORTS, 0, &lsc->sc_ioh)) {
 112                 aprint_error_dev(self, "io mapping failed\n");
 113                 return;
 114         }
 115
 116         lpt_attach_subr(lsc);
 117
 118         sc->sc_isr.isr_intr = lpt_supio_intr;
 119         sc->sc_isr.isr_arg = sc;
 120         sc->sc_isr.isr_ipl = supa->supio_ipl;
 121         add_isr(&sc->sc_isr);
 122 }