1/*	$NetBSD: attimer_isa.c,v 1.12 2009/05/12 08:44:19 cegger 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 1.12 2009/05/12 08:44:19 cegger 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
77static int	attimer_isa_match(device_t, cfdata_t, void *);
78static void	attimer_isa_attach(device_t, device_t, void *);
79
80CFATTACH_DECL_NEW(attimer_isa, sizeof(struct attimer_softc),
81    attimer_isa_match, attimer_isa_attach, attimer_detach, NULL);
82
83static int
84attimer_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
125static void
126attimer_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