xref: /openbsd-src/sys/arch/hppa/dev/wax.c (revision 32ffafad193fd9d5bc1743017cf37d821be47b78)
1 /*	$OpenBSD: wax.c,v 1.12 2024/05/22 14:25:47 jsg Exp $	*/
2 
3 /*
4  * Copyright (c) 1998-2003 Michael Shalayeff
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26  * THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/device.h>
32 #include <sys/reboot.h>
33 
34 #include <machine/iomod.h>
35 #include <machine/autoconf.h>
36 
37 #include <hppa/dev/cpudevs.h>
38 
39 #include <hppa/gsc/gscbusvar.h>
40 
41 #define	WAX_IOMASK	0xfff00000
42 
43 int	waxmatch(struct device *, void *, void *);
44 void	waxattach(struct device *, struct device *, void *);
45 
46 const struct cfattach wax_ca = {
47 	sizeof(struct device), waxmatch, waxattach
48 };
49 
50 struct cfdriver wax_cd = {
51 	NULL, "wax", DV_DULL
52 };
53 
54 int
waxmatch(parent,cfdata,aux)55 waxmatch(parent, cfdata, aux)
56 	struct device *parent;
57 	void *cfdata;
58 	void *aux;
59 {
60 	struct confargs *ca = aux;
61 	struct cfdata *cf = cfdata;
62 
63 	/* there will be only one */
64 	if (cf->cf_unit > 0 ||
65 	    ca->ca_type.iodc_type != HPPA_TYPE_BHA ||
66 	    ca->ca_type.iodc_sv_model != HPPA_BHA_WAX)
67 		return 0;
68 
69 	return 1;
70 }
71 
72 void
waxattach(parent,self,aux)73 waxattach(parent, self, aux)
74 	struct device *parent;
75 	struct device *self;
76 	void *aux;
77 {
78 	struct confargs *ca = aux;
79 	struct gsc_attach_args ga;
80 	struct gscbus_ic *ic;
81 	bus_space_handle_t ioh;
82 	int s;
83 
84 	if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh)) {
85 		printf(": can't map IO space\n");
86 		return;
87 	}
88 
89 	printf("\n");
90 
91 	/* interrupts guts */
92 	ic = (struct gscbus_ic *)ca->ca_hpa;
93 	s = splhigh();
94 	ic->iar = 0; /* will be set up by gsc when attaching */
95 	ic->icr = 0;
96 	ic->imr = ~0U;
97 	(void)ic->irr;
98 	ic->imr = 0;
99 	splx(s);
100 
101 	ga.ga_ca = *ca;	/* clone from us */
102 	if (!strcmp(parent->dv_xname, "mainbus0")) {
103 		ga.ga_dp.dp_bc[0] = ga.ga_dp.dp_bc[1];
104 		ga.ga_dp.dp_bc[1] = ga.ga_dp.dp_bc[2];
105 		ga.ga_dp.dp_bc[2] = ga.ga_dp.dp_bc[3];
106 		ga.ga_dp.dp_bc[3] = ga.ga_dp.dp_bc[4];
107 		ga.ga_dp.dp_bc[4] = ga.ga_dp.dp_bc[5];
108 		ga.ga_dp.dp_bc[5] = ga.ga_dp.dp_mod;
109 		ga.ga_dp.dp_mod = 0;
110 	}
111 
112 	ga.ga_name = "gsc";
113 	ga.ga_hpamask = WAX_IOMASK;
114 	ga.ga_parent = gsc_wax;
115 	ga.ga_ic = ic;
116 
117 	config_found(self, &ga, gscprint);
118 }
119