sys/arch/hpcarm/dev/ipaq_saip.c

   1 /*      $NetBSD: ipaq_saip.c,v 1.21 2008/04/28 20:23:21 martin Exp $    */
   2
   3 /*-
   4  * Copyright (c) 2001, The NetBSD Foundation, Inc.  All rights reserved.
   5  *
   6  * This code is derived from software contributed to The NetBSD Foundation
   7  * by Ichiro FUKUHARA (ichiro@ichiro.org).
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __KERNEL_RCSID(0, "$NetBSD: ipaq_saip.c,v 1.21 2008/04/28 20:23:21 martin Exp $");
  33
  34 #include <sys/param.h>
  35 #include <sys/systm.h>
  36 #include <sys/types.h>
  37 #include <sys/conf.h>
  38 #include <sys/device.h>
  39 #include <sys/kernel.h>
  40 #include <sys/malloc.h>
  41 #include <sys/uio.h>
  42
  43 #include <machine/cpu.h>
  44 #include <machine/bus.h>
  45
  46 #include <arm/sa11x0/sa11x0_var.h>
  47 #include <arm/sa11x0/sa11x0_reg.h>
  48 #include <arm/sa11x0/sa11x0_dmacreg.h>
  49 #include <arm/sa11x0/sa11x0_ppcreg.h>
  50 #include <arm/sa11x0/sa11x0_gpioreg.h>
  51 #include <arm/sa11x0/sa11x0_sspreg.h>
  52
  53 #include <hpcarm/dev/ipaq_saipvar.h>
  54 #include <hpcarm/dev/ipaq_gpioreg.h>
  55
  56 /* prototypes */
  57 static int      ipaq_match(device_t, cfdata_t, void *);
  58 static void     ipaq_attach(device_t, device_t, void *);
  59 static int      ipaq_search(device_t, cfdata_t, const int *, void *);
  60 static int      ipaq_print(void *, const char *);
  61
  62 /* attach structures */
  63 CFATTACH_DECL_NEW(ipaqbus, sizeof(struct ipaq_softc),
  64     ipaq_match, ipaq_attach, NULL, NULL);
  65
  66 static int
  67 ipaq_print(void *aux, const char *name)
  68 {
  69         return (UNCONF);
  70 }
  71
  72 int
  73 ipaq_match(device_t parent, cfdata_t match, void *aux)
  74 {
  75         return (1);
  76 }
  77
  78 void
  79 ipaq_attach(device_t parent, device_t self, void *aux)
  80 {
  81         struct ipaq_softc *sc = device_private(self);
  82         struct sa11x0_softc *psc = device_private(parent);
  83
  84         aprint_normal("\n");
  85
  86         sc->sc_dev = self;
  87         sc->sc_iot = psc->sc_iot;
  88         sc->sc_ioh = psc->sc_ioh;
  89         sc->sc_gpioh = psc->sc_gpioh;
  90
  91         /* Map the Extended GPIO registers */
  92         if (bus_space_map(sc->sc_iot, SAEGPIO_BASE, 1, 0, &sc->sc_egpioh))
  93                 panic("%s: unable to map Extended GPIO registers",
  94                         device_xname(self));
  95
  96         sc->ipaq_egpio = EGPIO_INIT;
  97         bus_space_write_2(sc->sc_iot, sc->sc_egpioh, 0, sc->ipaq_egpio);
  98
  99         /* Map the SSP registers */
 100         if (bus_space_map(sc->sc_iot, SASSP_BASE, SASSP_NPORTS, 0, &sc->sc_ssph))
 101                 panic("%s: unable to map SSP registers",
 102                         device_xname(self));
 103
 104         sc->sc_ppch = psc->sc_ppch;
 105         sc->sc_dmach = psc->sc_dmach;
 106
 107         /*
 108          *  Attach each devices
 109          */
 110         config_search_ia(ipaq_search, self, "ipaqbus", NULL);
 111 }
 112
 113 int
 114 ipaq_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
 115 {
 116         if (config_match(parent, cf, NULL) > 0)
 117                 config_attach(parent, cf, NULL, ipaq_print);
 118
 119         return 0;
 120 }