sys/arch/news68k/dev/hb.c

   1 /*      $NetBSD: hb.c,v 1.18 2008/03/28 18:19:56 tsutsui Exp $  */
   2
   3 /*-
   4  * Copyright (c) 1999 Izumi Tsutsui.  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  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __KERNEL_RCSID(0, "$NetBSD: hb.c,v 1.18 2008/03/28 18:19:56 tsutsui Exp $");
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/device.h>
  33
  34 #include <machine/autoconf.h>
  35 #include <machine/bus.h>
  36 #include <machine/cpu.h>
  37
  38 #include <news68k/news68k/isr.h>
  39 #include <news68k/dev/hbvar.h>
  40
  41 #include "ioconf.h"
  42
  43 static int  hb_match(device_t, cfdata_t, void *);
  44 static void hb_attach(device_t, device_t, void *);
  45 static int  hb_search(device_t, cfdata_t, const int *, void *);
  46 static int  hb_print(void *, const char *);
  47
  48 CFATTACH_DECL_NEW(hb, 0,
  49     hb_match, hb_attach, NULL, NULL);
  50
  51 static int
  52 hb_match(device_t parent, cfdata_t cf, void *aux)
  53 {
  54         struct mainbus_attach_args *ma = aux;
  55
  56         if (strcmp(ma->ma_name, hb_cd.cd_name) != 0)
  57                 return 0;
  58
  59         if (ma->ma_systype != -1 && ma->ma_systype != systype)
  60                 return 0;
  61
  62         return 1;
  63 }
  64
  65 static void
  66 hb_attach(device_t parent, device_t self, void *aux)
  67 {
  68         struct hb_attach_args ha;
  69
  70         aprint_normal("\n");
  71         memset(&ha, 0, sizeof(ha));
  72
  73         config_search_ia(hb_search, self, "hb", &ha);
  74 }
  75
  76 static int
  77 hb_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
  78 {
  79         struct hb_attach_args *ha = aux;
  80
  81         ha->ha_name = cf->cf_name;
  82         ha->ha_address = cf->cf_addr;
  83         ha->ha_ipl = cf->cf_ipl;
  84         ha->ha_vect = cf->cf_vect;
  85
  86         /* XXX news68k Hyper-bus is not a real bus... */
  87         ha->ha_bust = ISIIOPA(ha->ha_address) ?
  88             NEWS68K_BUS_SPACE_INTIO : NEWS68K_BUS_SPACE_EIO;
  89
  90         if (config_match(parent, cf, ha) > 0)
  91                 config_attach(parent, cf, ha, hb_print);
  92
  93         return 0;
  94 }
  95
  96 /*
  97  * Print out the confargs.  The (parent) name is non-NULL
  98  * when there was no match found by config_found().
  99  */
 100 static int
 101 hb_print(void *args, const char *name)
 102 {
 103         struct hb_attach_args *ha = args;
 104
 105 #if 0
 106         if (ha->ha_addr > 0)
 107 #endif
 108                 aprint_normal(" addr 0x%08lx", ha->ha_address);
 109         if (ha->ha_ipl > 0)
 110                 aprint_normal(" ipl %d", ha->ha_ipl);
 111         if (ha->ha_vect > 0) {
 112                 aprint_normal(" vect %d", ha->ha_vect);
 113         }
 114
 115         return QUIET;
 116 }
 117
 118 /*
 119  * hb_intr_establish: establish hb interrupt
 120  */
 121 void
 122 hb_intr_establish(int hbvect, int (*hand)(void *), int ipl, void *arg)
 123 {
 124
 125         if ((ipl < 1) || (ipl > 7)) {
 126                 printf("hb: illegal interrupt level: %d\n", ipl);
 127                 panic("hb_intr_establish");
 128         }
 129
 130         if ((hbvect < 0) || (hbvect > 255)) {
 131                 printf("hb: illegal vector offset: 0x%x\n", hbvect);
 132                 panic("hb_intr_establish");
 133         }
 134
 135         isrlink_vectored(hand, arg, ipl, hbvect);
 136 }
 137
 138 void
 139 hb_intr_disestablish(int hbvect)
 140 {
 141
 142         if ((hbvect < 0) || (hbvect > 255)) {
 143                 printf("hb: illegal vector offset: 0x%x\n", hbvect);
 144                 panic("hb_intr_disestablish");
 145         }
 146
 147         isrunlink_vectored(hbvect);
 148 }