1 /* $NetBSD: attimer_isa.c,v 1.13 2009/08/23 16:02:53 jmcneill Exp $ */
2
3 /*
4 * Copyright (c) 2005 The NetBSD Foundation.
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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /*
30 * Copyright (c) 1996 Carnegie-Mellon University.
31 * All rights reserved.
32 *
33 * Author: Chris G. Demetriou
34 *
35 * Permission to use, copy, modify and distribute this software and
36 * its documentation is hereby granted, provided that both the copyright
37 * notice and this permission notice appear in all copies of the
38 * software, derivative works or modified versions, and any portions
39 * thereof, and that both notices appear in supporting documentation.
40 *
41 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
42 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
43 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
44 *
45 * Carnegie Mellon requests users of this software to return to
46 *
47 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
48 * School of Computer Science
49 * Carnegie Mellon University
50 * Pittsburgh PA 15213-3890
51 *
52 * any improvements or extensions that they make and grant Carnegie the
53 * rights to redistribute these changes.
54 */
55
56 /*
57 * ISA attachment for attimer(4)
58 */
59
60 #include <sys/cdefs.h>
61 __KERNEL_RCSID(0, "$NetBSD: attimer_isa.c,v 1.13 2009/08/23 16:02:53 jmcneill Exp $");
62
63 #include <sys/param.h>
64 #include <sys/systm.h>
65 #include <sys/errno.h>
66 #include <sys/ioctl.h>
67 #include <sys/device.h>
68 #include <sys/proc.h>
69
70 #include <sys/bus.h>
71
72 #include <dev/ic/attimervar.h>
73
74 #include <dev/isa/isareg.h>
75 #include <dev/isa/isavar.h>
76
77 static int attimer_isa_match(device_t, cfdata_t, void *);
78 static void attimer_isa_attach(device_t, device_t, void *);
79
80 CFATTACH_DECL_NEW(attimer_isa, sizeof(struct attimer_softc),
81 attimer_isa_match, attimer_isa_attach, attimer_detach, NULL);
82
83 static int
attimer_isa_match(device_t parent,cfdata_t match,void * aux)84 attimer_isa_match(device_t parent, cfdata_t match, void *aux)
85 {
86 struct isa_attach_args *ia = aux;
87 bus_space_handle_t att_ioh;
88
89 if (ISA_DIRECT_CONFIG(ia))
90 return (0);
91
92 /* If values are hardwired to something that they can't be, punt. */
93 if (ia->ia_nio < 1 ||
94 (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT &&
95 ia->ia_io[0].ir_addr != IO_TIMER1))
96 return (0);
97
98 if (ia->ia_niomem > 0 &&
99 (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM))
100 return (0);
101
102 if (ia->ia_nirq > 0 &&
103 (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ))
104 return (0);
105
106 if (ia->ia_ndrq > 0 &&
107 (ia->ia_drq[0].ir_drq != ISA_UNKNOWN_DRQ))
108 return (0);
109
110 if (bus_space_map(ia->ia_iot, IO_TIMER1, 4, 0, &att_ioh))
111 return 0;
112 bus_space_unmap(ia->ia_iot, att_ioh, 4);
113
114 ia->ia_io[0].ir_addr = IO_TIMER1;
115 ia->ia_io[0].ir_size = 4;
116 ia->ia_nio = 1;
117
118 ia->ia_niomem = 0;
119 ia->ia_nirq = 0;
120 ia->ia_ndrq = 0;
121
122 return 1;
123 }
124
125 static void
attimer_isa_attach(device_t parent,device_t self,void * aux)126 attimer_isa_attach(device_t parent, device_t self, void *aux)
127 {
128 struct attimer_softc *sc = device_private(self);
129 struct isa_attach_args *ia = aux;
130
131 sc->sc_dev = self;
132 sc->sc_iot = ia->ia_iot;
133
134 aprint_naive("\n");
135 aprint_normal("\n");
136
137 sc->sc_size = 4;
138 if (bus_space_map(sc->sc_iot, IO_TIMER1, sc->sc_size, 0,
139 &sc->sc_ioh) != 0)
140 aprint_error_dev(self, "could not map registers\n");
141 else
142 attimer_attach(sc);
143 }
144