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 |
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 |
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 | |