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      1 /*	$NetBSD: hb.c,v 1.21 2021/08/07 16:19:00 thorpej 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 1.21 2021/08/07 16:19:00 thorpej 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(self, &ha,
     74 	    CFARGS(.search = hb_search));
     75 }
     76 
     77 static int
     78 hb_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
     79 {
     80 	struct hb_attach_args *ha = aux;
     81 
     82 	ha->ha_name = cf->cf_name;
     83 	ha->ha_address = cf->cf_addr;
     84 	ha->ha_ipl = cf->cf_ipl;
     85 	ha->ha_vect = cf->cf_vect;
     86 
     87 	/* XXX news68k Hyper-bus is not a real bus... */
     88 	ha->ha_bust = ISIIOPA(ha->ha_address) ?
     89 	    NEWS68K_BUS_SPACE_INTIO : NEWS68K_BUS_SPACE_EIO;
     90 
     91 	if (config_probe(parent, cf, ha))
     92 		config_attach(parent, cf, ha, hb_print, CFARGS_NONE);
     93 
     94 	return 0;
     95 }
     96 
     97 /*
     98  * Print out the confargs.  The (parent) name is non-NULL
     99  * when there was no match found by config_found().
    100  */
    101 static int
    102 hb_print(void *args, const char *name)
    103 {
    104 	struct hb_attach_args *ha = args;
    105 
    106 #if 0
    107 	if (ha->ha_addr > 0)
    108 #endif
    109 		aprint_normal(" addr 0x%08lx", ha->ha_address);
    110 	if (ha->ha_ipl > 0)
    111 		aprint_normal(" ipl %d", ha->ha_ipl);
    112 	if (ha->ha_vect > 0) {
    113 		aprint_normal(" vect %d", ha->ha_vect);
    114 	}
    115 
    116 	return QUIET;
    117 }
    118 
    119 /*
    120  * hb_intr_establish: establish hb interrupt
    121  */
    122 void
    123 hb_intr_establish(int hbvect, int (*hand)(void *), int ipl, void *arg)
    124 {
    125 
    126 	if ((ipl < 1) || (ipl > 7)) {
    127 		printf("hb: illegal interrupt level: %d\n", ipl);
    128 		panic("hb_intr_establish");
    129 	}
    130 
    131 	if ((hbvect < 0) || (hbvect > 255)) {
    132 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
    133 		panic("hb_intr_establish");
    134 	}
    135 
    136 	isrlink_vectored(hand, arg, ipl, hbvect);
    137 }
    138 
    139 void
    140 hb_intr_disestablish(int hbvect)
    141 {
    142 
    143 	if ((hbvect < 0) || (hbvect > 255)) {
    144 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
    145 		panic("hb_intr_disestablish");
    146 	}
    147 
    148 	isrunlink_vectored(hbvect);
    149 }
    150