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intio.c revision 1.15
      1 /*	$NetBSD: intio.c,v 1.15 2003/05/24 06:21:22 gmcgarry Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996, 1998, 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Autoconfiguration support for hp300 internal i/o space.
     41  */
     42 
     43 #include <sys/cdefs.h>
     44 __KERNEL_RCSID(0, "$NetBSD: intio.c,v 1.15 2003/05/24 06:21:22 gmcgarry Exp $");
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/device.h>
     49 
     50 #include <machine/hp300spu.h>
     51 
     52 #include <hp300/dev/intioreg.h>
     53 #include <hp300/dev/intiovar.h>
     54 
     55 int	intiomatch(struct device *, struct cfdata *, void *);
     56 void	intioattach(struct device *, struct device *, void *);
     57 int	intioprint(void *, const char *);
     58 
     59 CFATTACH_DECL(intio, sizeof(struct device),
     60     intiomatch, intioattach, NULL, NULL);
     61 
     62 #if defined(HP320) || defined(HP330) || defined(HP340) || defined(HP345) || \
     63     defined(HP350) || defined(HP360) || defined(HP370) || defined(HP375) || \
     64     defined(HP380) || defined(HP385)
     65 const struct intio_builtins intio_3xx_builtins[] = {
     66 	{ "rtc",	0x020000,	-1},
     67 	{ "hil",	0x028000,	1},
     68 	{ "hpib",	0x078000,	3},
     69 	{ "dma",	0x100000,	1},
     70 	{ "fb",		0x160000,	-1},
     71 };
     72 #define nintio_3xx_builtins \
     73 	(sizeof(intio_3xx_builtins) / sizeof(intio_3xx_builtins[0]))
     74 #endif
     75 
     76 #if defined(HP400) || defined(HP425) || defined(HP433)
     77 const struct intio_builtins intio_4xx_builtins[] = {
     78 	{ "rtc",	0x020000,	-1},
     79 	{ "frodo",	0x01c000,	5},
     80 	{ "hil",	0x028000,	1},
     81 	{ "hpib",	0x078000,	3},
     82 	{ "dma",	0x100000,	1},
     83 };
     84 #define nintio_4xx_builtins \
     85 	(sizeof(intio_4xx_builtins) / sizeof(intio_4xx_builtins[0]))
     86 #endif
     87 
     88 static int intio_matched = 0;
     89 extern caddr_t internalhpib;
     90 
     91 int
     92 intiomatch(parent, match, aux)
     93 	struct device *parent;
     94 	struct cfdata *match;
     95 	void *aux;
     96 {
     97 	/* Allow only one instance. */
     98 	if (intio_matched)
     99 		return (0);
    100 
    101 	intio_matched = 1;
    102 	return (1);
    103 }
    104 
    105 void
    106 intioattach(parent, self, aux)
    107 	struct device *parent, *self;
    108 	void *aux;
    109 {
    110 	struct intio_attach_args ia;
    111 	const struct intio_builtins *ib;
    112 	int ndevs;
    113 	int i;
    114 
    115 	printf("\n");
    116 
    117 	switch (machineid) {
    118 #if defined(HP320) || defined(HP330) || defined(HP340) || defined(HP345) || \
    119     defined(HP350) || defined(HP360) || defined(HP370) || defined(HP375) || \
    120     defined(HP380) || defined(HP385)
    121 	case HP_320:
    122 	case HP_330:
    123 	case HP_340:
    124 	case HP_345:
    125 	case HP_350:
    126 	case HP_360:
    127 	case HP_370:
    128 	case HP_375:
    129 	case HP_380:
    130 	case HP_385:
    131 		ib = intio_3xx_builtins;
    132 		ndevs = nintio_3xx_builtins;
    133 		break;
    134 #endif
    135 #if defined(HP400) || defined(HP425) || defined(HP433)
    136 	case HP_400:
    137 	case HP_425:
    138 	case HP_433:
    139 		ib = intio_4xx_builtins;
    140 		ndevs = nintio_4xx_builtins;
    141 		break;
    142 #endif
    143 	default:
    144 		return;
    145 	}
    146 
    147 	memset(&ia, 0, sizeof(ia));
    148 
    149 	for (i=0; i<ndevs; i++) {
    150 
    151 		/*
    152 		 * Internal HP-IB doesn't always return a device ID,
    153 		 * so we rely on the sysflags.
    154 		 */
    155 		if (ib[i].ib_offset == 0x078000 && !internalhpib)
    156 			continue;
    157 
    158 		strncpy(ia.ia_modname, ib[i].ib_modname, INTIO_MOD_LEN);
    159 		ia.ia_modname[INTIO_MOD_LEN] = '\0';
    160 		ia.ia_bst = HP300_BUS_SPACE_INTIO;
    161 		ia.ia_iobase = ib[i].ib_offset;
    162 		ia.ia_addr = (bus_addr_t)(intiobase + ib[i].ib_offset);
    163 		ia.ia_ipl = ib[i].ib_ipl;
    164 		config_found(self, &ia, intioprint);
    165 	}
    166 }
    167 
    168 int
    169 intioprint(aux, pnp)
    170 	void *aux;
    171 	const char *pnp;
    172 {
    173 	struct intio_attach_args *ia = aux;
    174 
    175 	if (pnp != NULL)
    176 		aprint_normal("%s at %s", ia->ia_modname, pnp);
    177 	if (ia->ia_iobase != 0 && pnp == NULL) {
    178 		aprint_normal(" addr 0x%lx", INTIOBASE + ia->ia_iobase);
    179 		if (ia->ia_ipl != -1)
    180 			aprint_normal(" ipl %d", ia->ia_ipl);
    181 	}
    182 	return (UNCONF);
    183 }
    184