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hb.c revision 1.17 
      1 /*	$NetBSD: hb.c,v 1.17 2005/12/11 12:18:23 christos 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  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: hb.c,v 1.17 2005/12/11 12:18:23 christos Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 
     36 #include <machine/autoconf.h>
     37 #include <machine/bus.h>
     38 #include <machine/cpu.h>
     39 
     40 #include <news68k/news68k/isr.h>
     41 #include <news68k/dev/hbvar.h>
     42 
     43 #include "ioconf.h"
     44 
     45 static int  hb_match(struct device *, struct cfdata *, void *);
     46 static void hb_attach(struct device *, struct device *, void *);
     47 static int  hb_search(struct device *, struct cfdata *,
     48 		      const int *, void *);
     49 static int  hb_print(void *, const char *);
     50 
     51 CFATTACH_DECL(hb, sizeof(struct device),
     52     hb_match, hb_attach, NULL, NULL);
     53 
     54 static int
     55 hb_match(struct device *parent, struct cfdata *cf, void *aux)
     56 {
     57 	struct mainbus_attach_args *ma = aux;
     58 
     59 	if (strcmp(ma->ma_name, hb_cd.cd_name) != 0)
     60 		return 0;
     61 
     62 	if (ma->ma_systype != -1 && ma->ma_systype != systype)
     63 		return 0;
     64 
     65 	return 1;
     66 }
     67 
     68 static void
     69 hb_attach(struct device *parent, struct device *self, void *aux)
     70 {
     71 	struct hb_attach_args ha;
     72 
     73 	printf("\n");
     74 	memset(&ha, 0, sizeof(ha));
     75 
     76 	config_search_ia(hb_search, self, "hb", &ha);
     77 }
     78 
     79 static int
     80 hb_search(struct device *parent, struct cfdata *cf,
     81 	  const int *ldesc, void *aux)
     82 {
     83 	struct hb_attach_args *ha = aux;
     84 
     85 	ha->ha_name = cf->cf_name;
     86 	ha->ha_address = cf->cf_addr;
     87 	ha->ha_ipl = cf->cf_ipl;
     88 	ha->ha_vect = cf->cf_vect;
     89 
     90 	/* XXX news68k Hyper-bus is not a real bus... */
     91 	ha->ha_bust = ISIIOPA(ha->ha_address) ?
     92 	    NEWS68K_BUS_SPACE_INTIO : NEWS68K_BUS_SPACE_EIO;
     93 
     94 	if (config_match(parent, cf, ha) > 0)
     95 		config_attach(parent, cf, ha, hb_print);
     96 
     97 	return 0;
     98 }
     99 
    100 /*
    101  * Print out the confargs.  The (parent) name is non-NULL
    102  * when there was no match found by config_found().
    103  */
    104 static int
    105 hb_print(void *args, const char *name)
    106 {
    107 	struct hb_attach_args *ha = args;
    108 
    109 #if 0
    110 	if (ha->ha_addr > 0)
    111 #endif
    112 		aprint_normal (" addr 0x%08lx", ha->ha_address);
    113 	if (ha->ha_ipl > 0)
    114 		aprint_normal (" ipl %d", ha->ha_ipl);
    115 	if (ha->ha_vect > 0) {
    116 		aprint_normal (" vect %d", ha->ha_vect);
    117 	}
    118 
    119 	return QUIET;
    120 }
    121 
    122 /*
    123  * hb_intr_establish: establish hb interrupt
    124  */
    125 void
    126 hb_intr_establish(int hbvect, int (*hand)(void *), int ipl, void *arg)
    127 {
    128 
    129 	if ((ipl < 1) || (ipl > 7)) {
    130 		printf("hb: illegal interrupt level: %d\n", ipl);
    131 		panic("hb_intr_establish");
    132 	}
    133 
    134 	if ((hbvect < 0) || (hbvect > 255)) {
    135 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
    136 		panic("hb_intr_establish");
    137 	}
    138 
    139 	isrlink_vectored(hand, arg, ipl, hbvect);
    140 }
    141 
    142 void
    143 hb_intr_disestablish(int hbvect)
    144 {
    145 
    146 	if ((hbvect < 0) || (hbvect > 255)) {
    147 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
    148 		panic("hb_intr_disestablish");
    149 	}
    150 
    151 	isrunlink_vectored(hbvect);
    152 }
    153