sys/dev/hpc/hpcout.c

   1 /*      $NetBSD: hpcout.c,v 1.14 2009/05/12 12:13:49 cegger Exp $       */
   2
   3 /*-
   4  * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by UCHIYAMA Yasushi.
   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: hpcout.c,v 1.14 2009/05/12 12:13:49 cegger Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/device.h>
  38
  39 #include <machine/config_hook.h>
  40 #include <sys/bus.h>
  41
  42 #include <dev/hpc/hpciovar.h>
  43 #include <dev/hpc/hpciomanvar.h>
  44
  45 #include "locators.h"
  46
  47 int     hpcout_match(device_t, cfdata_t, void *);
  48 void    hpcout_attach(device_t, device_t, void *);
  49 int     hpcout_hook(void *, int, long, void *);
  50
  51 struct hpcout_softc {
  52         struct device sc_dev;
  53         struct hpcioman_attach_args sc_hma;
  54 };
  55
  56 #define sc_hc           sc_hma.hma_hc
  57 #define sc_intr_mode    sc_hma.hma_intr_mode
  58 #define sc_type         sc_hma.hma_type
  59 #define sc_id           sc_hma.hma_id
  60 #define sc_port         sc_hma.hma_port
  61 #define sc_initvalue    sc_hma.hma_initvalue
  62 #define sc_on           sc_hma.hma_on
  63 #define sc_off          sc_hma.hma_off
  64
  65 CFATTACH_DECL(hpcout, sizeof(struct hpcout_softc),
  66     hpcout_match, hpcout_attach, NULL, NULL);
  67
  68 int
  69 hpcout_match(device_t parent, cfdata_t cf, void *aux)
  70 {
  71         return (1);
  72 }
  73
  74 void
  75 hpcout_attach(device_t parent, device_t self, void *aux)
  76 {
  77         struct hpcioman_attach_args *hma = aux;
  78         struct hpcout_softc *sc = device_private(self);
  79
  80         sc->sc_hma = *hma;      /* structure assignment */
  81
  82         if (hma->hma_hc == NULL ||
  83             hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
  84             hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
  85             hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
  86                 printf(": ignored\n");
  87                 return;
  88         }
  89         printf("\n");
  90
  91         if (hma->hma_initvalue != -1)
  92                 hpcio_portwrite(sc->sc_hc, sc->sc_port, hma->hma_initvalue);
  93
  94         config_hook(sc->sc_type, sc->sc_id, CONFIG_HOOK_SHARE,
  95             hpcout_hook, sc);
  96 }
  97
  98 int
  99 hpcout_hook(void *arg, int type, long id, void *msg)
 100 {
 101         struct hpcout_softc *sc = arg;
 102
 103         printf("%s: port %d: %s\n", __func__, sc->sc_port,
 104             (int)msg ? "on" : "off");
 105         hpcio_portwrite(sc->sc_hc, sc->sc_port,
 106             (int)msg ? sc->sc_on : sc->sc_off);
 107
 108         return (0);
 109 }