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intio.c revision 1.18
      1 /*	$NetBSD: intio.c,v 1.18 2003/11/17 14:37:59 tsutsui 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 1.18 2003/11/17 14:37:59 tsutsui 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 struct intio_softc {
     56 	struct device sc_dev;
     57 	struct bus_space_tag sc_tag;
     58 };
     59 
     60 int	intiomatch(struct device *, struct cfdata *, void *);
     61 void	intioattach(struct device *, struct device *, void *);
     62 int	intioprint(void *, const char *);
     63 
     64 CFATTACH_DECL(intio, sizeof(struct intio_softc),
     65     intiomatch, intioattach, NULL, NULL);
     66 
     67 #if defined(HP320) || defined(HP330) || defined(HP340) || defined(HP345) || \
     68     defined(HP350) || defined(HP360) || defined(HP370) || defined(HP375) || \
     69     defined(HP380) || defined(HP385)
     70 const struct intio_builtins intio_3xx_builtins[] = {
     71 	{ "rtc",	0x020000,	-1},
     72 	{ "hil",	0x028000,	1},
     73 	{ "hpib",	0x078000,	3},
     74 	{ "dma",	0x100000,	1},
     75 	{ "fb",		0x160000,	-1},
     76 };
     77 #define nintio_3xx_builtins \
     78 	(sizeof(intio_3xx_builtins) / sizeof(intio_3xx_builtins[0]))
     79 #endif
     80 
     81 #if defined(HP400) || defined(HP425) || defined(HP433)
     82 const struct intio_builtins intio_4xx_builtins[] = {
     83 	{ "rtc",	0x020000,	-1},
     84 	{ "frodo",	0x01c000,	5},
     85 	{ "hil",	0x028000,	1},
     86 	{ "hpib",	0x078000,	3},
     87 	{ "dma",	0x100000,	1},
     88 };
     89 #define nintio_4xx_builtins \
     90 	(sizeof(intio_4xx_builtins) / sizeof(intio_4xx_builtins[0]))
     91 #endif
     92 
     93 static int intio_matched = 0;
     94 extern caddr_t internalhpib;
     95 
     96 int
     97 intiomatch(parent, match, aux)
     98 	struct device *parent;
     99 	struct cfdata *match;
    100 	void *aux;
    101 {
    102 	/* Allow only one instance. */
    103 	if (intio_matched)
    104 		return (0);
    105 
    106 	intio_matched = 1;
    107 	return (1);
    108 }
    109 
    110 void
    111 intioattach(parent, self, aux)
    112 	struct device *parent, *self;
    113 	void *aux;
    114 {
    115 	struct intio_softc *sc = (struct intio_softc *)self;
    116 	struct intio_attach_args ia;
    117 	const struct intio_builtins *ib;
    118 	bus_space_tag_t bst = &sc->sc_tag;
    119 	int ndevs;
    120 	int i;
    121 
    122 	printf("\n");
    123 
    124 	memset(bst, 0, sizeof(struct bus_space_tag));
    125 	bst->bustype = HP300_BUS_SPACE_INTIO;
    126 
    127 	switch (machineid) {
    128 #if defined(HP320) || defined(HP330) || defined(HP340) || defined(HP345) || \
    129     defined(HP350) || defined(HP360) || defined(HP370) || defined(HP375) || \
    130     defined(HP380) || defined(HP385)
    131 	case HP_320:
    132 	case HP_330:
    133 	case HP_340:
    134 	case HP_345:
    135 	case HP_350:
    136 	case HP_360:
    137 	case HP_370:
    138 	case HP_375:
    139 	case HP_380:
    140 	case HP_385:
    141 		ib = intio_3xx_builtins;
    142 		ndevs = nintio_3xx_builtins;
    143 		break;
    144 #endif
    145 #if defined(HP400) || defined(HP425) || defined(HP433)
    146 	case HP_400:
    147 	case HP_425:
    148 	case HP_433:
    149 		ib = intio_4xx_builtins;
    150 		ndevs = nintio_4xx_builtins;
    151 		break;
    152 #endif
    153 	default:
    154 		return;
    155 	}
    156 
    157 	memset(&ia, 0, sizeof(ia));
    158 
    159 	for (i = 0; i < ndevs; i++) {
    160 
    161 		/*
    162 		 * Internal HP-IB doesn't always return a device ID,
    163 		 * so we rely on the sysflags.
    164 		 */
    165 		if (ib[i].ib_offset == 0x078000 && !internalhpib)
    166 			continue;
    167 
    168 		strncpy(ia.ia_modname, ib[i].ib_modname, INTIO_MOD_LEN);
    169 		ia.ia_modname[INTIO_MOD_LEN] = '\0';
    170 		ia.ia_bst = bst;
    171 		ia.ia_iobase = ib[i].ib_offset;
    172 		ia.ia_addr = (bus_addr_t)(intiobase + ib[i].ib_offset);
    173 		ia.ia_ipl = ib[i].ib_ipl;
    174 		config_found(self, &ia, intioprint);
    175 	}
    176 }
    177 
    178 int
    179 intioprint(aux, pnp)
    180 	void *aux;
    181 	const char *pnp;
    182 {
    183 	struct intio_attach_args *ia = aux;
    184 
    185 	if (pnp != NULL)
    186 		aprint_normal("%s at %s", ia->ia_modname, pnp);
    187 	if (ia->ia_iobase != 0 && pnp == NULL) {
    188 		aprint_normal(" addr 0x%lx", INTIOBASE + ia->ia_iobase);
    189 		if (ia->ia_ipl != -1)
    190 			aprint_normal(" ipl %d", ia->ia_ipl);
    191 	}
    192 	return (UNCONF);
    193 }
    194