1 /* $NetBSD: gencp_xsurf.c,v 1.2 2012/10/27 17:17:26 chs Exp $ */
2
3 /*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Radoslaw Kujawa.
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 /* Clockports on top of X-Surf. */
33
34 #include <sys/cdefs.h>
35
36 #include <sys/systm.h>
37 #include <sys/types.h>
38 #include <sys/device.h>
39 #include <sys/bus.h>
40 #include <sys/conf.h>
41 #include <sys/kmem.h>
42
43 #include <machine/cpu.h>
44
45 #include <amiga/amiga/device.h>
46
47 #include <amiga/dev/zbusvar.h>
48 #include <amiga/dev/xsurfvar.h>
49
50 #include <amiga/clockport/clockportvar.h>
51
52 static int gencp_xsurf_match(device_t, cfdata_t, void *);
53 static void gencp_xsurf_attach(device_t, device_t, void *);
54
55 CFATTACH_DECL_NEW(gencp_xsurf, sizeof(struct gencp_softc),
56 gencp_xsurf_match, gencp_xsurf_attach, NULL, NULL);
57
58 static int
gencp_xsurf_match(device_t parent,cfdata_t cf,void * aux)59 gencp_xsurf_match(device_t parent, cfdata_t cf, void *aux)
60 {
61 struct xsurfbus_attach_args *xsb_aa;
62 static int attach_count = 0;
63
64 xsb_aa = aux;
65
66 if (strcmp(xsb_aa->xaa_name, "gencp_xsurf") != 0)
67 return 0;
68
69 /* No X-Surf with more than 2 clockports exists. */
70 if (attach_count >= 2)
71 return 0;
72
73 attach_count++;
74
75 return 1;
76 }
77
78 static void
gencp_xsurf_attach(device_t parent,device_t self,void * aux)79 gencp_xsurf_attach(device_t parent, device_t self, void *aux)
80 {
81 struct gencp_softc *sc;
82 struct bus_space_tag cpb_bst;
83 struct clockportbus_attach_args cpb_aa;
84 struct xsurfbus_attach_args *xsb_aa;
85
86 xsb_aa = aux;
87 sc = device_private(self);
88 sc->sc_dev = self;
89 sc->cpb_aa = &cpb_aa;
90
91 /* Set the address and bus access methods. */
92 cpb_bst.base = xsb_aa->xaa_base;
93 cpb_bst.absm = &amiga_bus_stride_4;
94
95 sc->cpb_aa->cp_iot = &cpb_bst;
96
97 gencp_attach(sc);
98 }
99