xref: /netbsd-src/sys/arch/mvme68k/dev/vme_two_68k.c (revision cbab9cadce21ae72fac13910001079fff214cc29)
1 /*	$NetBSD: vme_two_68k.c,v 1.10 2012/10/27 17:18:04 chs Exp $	*/
2 
3 /*-
4  * Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Steve C. Woodford.
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  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * Front-end for the VMEchip2 found on the MVME-1[67][27] boards.
34  */
35 
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: vme_two_68k.c,v 1.10 2012/10/27 17:18:04 chs Exp $");
38 
39 #include "vmetwo.h"
40 
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45 
46 #include <machine/cpu.h>
47 #include <machine/bus.h>
48 
49 #include <dev/vme/vmereg.h>
50 #include <dev/vme/vmevar.h>
51 
52 #include <mvme68k/mvme68k/isr.h>
53 #include <mvme68k/dev/mainbus.h>
54 
55 #include <dev/mvme/mvmebus.h>
56 #include <dev/mvme/vme_tworeg.h>
57 #include <dev/mvme/vme_twovar.h>
58 
59 #include "ioconf.h"
60 
61 static void vmetwoisrlink(void *, int (*)(void *), void *,
62 	int, int, struct evcnt *);
63 static void vmetwoisrunlink(void *, int);
64 static struct evcnt *vmetwoisrevcnt(void *, int);
65 
66 #if NVMETWO > 0
67 
68 int vmetwo_match(device_t, cfdata_t, void *);
69 void vmetwo_attach(device_t, device_t, void *);
70 
71 CFATTACH_DECL_NEW(vmetwo, sizeof(struct vmetwo_softc),
72     vmetwo_match, vmetwo_attach, NULL, NULL);
73 
74 
75 /* ARGSUSED */
76 int
vmetwo_match(device_t parent,cfdata_t cf,void * aux)77 vmetwo_match(device_t parent, cfdata_t cf, void *aux)
78 {
79 	struct mainbus_attach_args *ma;
80 	static int matched = 0;
81 
82 	ma = aux;
83 
84 	if (strcmp(ma->ma_name, vmetwo_cd.cd_name))
85 		return 0;
86 
87 	/* Only one VMEchip2, please. */
88 	if (matched++)
89 		return 0;
90 
91 	/*
92 	 * Some mvme1[67]2 boards have a `no VMEchip2' build option...
93 	 */
94 	return vmetwo_probe(ma->ma_bust, ma->ma_offset) ? 1 : 0;
95 }
96 
97 /* ARGSUSED */
98 void
vmetwo_attach(device_t parent,device_t self,void * aux)99 vmetwo_attach(device_t parent, device_t self, void *aux)
100 {
101 	struct mainbus_attach_args *ma;
102 	struct vmetwo_softc *sc;
103 
104 	sc = device_private(self);
105 	sc->sc_mvmebus.sc_dev = self;
106 	ma = aux;
107 
108 	/*
109 	 * Map the local control registers
110 	 */
111 	bus_space_map(ma->ma_bust, ma->ma_offset + VME2REG_LCSR_OFFSET,
112 	    VME2LCSR_SIZE, 0, &sc->sc_lcrh);
113 
114 #ifdef notyet
115 	/*
116 	 * Map the global control registers
117 	 */
118 	bus_space_map(ma->ma_bust, ma->ma_offset + VME2REG_GCSR_OFFSET,
119 	    VME2GCSR_SIZE, 0, &sc->sc_gcrh);
120 #endif
121 
122 	/* Initialise stuff for the common vme_two back-end */
123 	sc->sc_mvmebus.sc_bust = ma->ma_bust;
124 	sc->sc_mvmebus.sc_dmat = ma->ma_dmat;
125 
126 	vmetwo_init(sc);
127 }
128 
129 #endif	/* NVMETWO > 0 */
130 
131 void
vmetwo_md_intr_init(struct vmetwo_softc * sc)132 vmetwo_md_intr_init(struct vmetwo_softc *sc)
133 {
134 
135 	sc->sc_isrlink = vmetwoisrlink;
136 	sc->sc_isrunlink = vmetwoisrunlink;
137 	sc->sc_isrevcnt = vmetwoisrevcnt;
138 }
139 
140 /* ARGSUSED */
141 static void
vmetwoisrlink(void * cookie,int (* fn)(void *),void * arg,int ipl,int vec,struct evcnt * evcnt)142 vmetwoisrlink(void *cookie, int (*fn)(void *), void *arg, int ipl, int vec,
143     struct evcnt *evcnt)
144 {
145 
146 	isrlink_vectored(fn, arg, ipl, vec, evcnt);
147 }
148 
149 /* ARGSUSED */
150 static void
vmetwoisrunlink(void * cookie,int vec)151 vmetwoisrunlink(void *cookie, int vec)
152 {
153 
154 	isrunlink_vectored(vec);
155 }
156 
157 /* ARGSUSED */
158 static struct evcnt *
vmetwoisrevcnt(void * cookie,int ipl)159 vmetwoisrevcnt(void *cookie, int ipl)
160 {
161 
162 	return isrlink_evcnt(ipl);
163 }
164