1/*	$NetBSD: mpu_isa.c,v 1.23 2016/07/14 10:19:06 msaitoh Exp $	*/
2
3/*-
4 * Copyright (c) 1999, 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lennart Augustsson and by Andrew Doran.
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#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: mpu_isa.c,v 1.23 2016/07/14 10:19:06 msaitoh Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/kernel.h>
38#include <sys/errno.h>
39#include <sys/device.h>
40#include <sys/proc.h>
41#include <sys/conf.h>
42#include <sys/midiio.h>
43
44#include <sys/bus.h>
45
46#include <dev/midi_if.h>
47
48#include <dev/isa/isavar.h>
49#include <dev/ic/mpuvar.h>
50
51struct mpu_isa_softc {
52	device_t sc_dev;
53	struct mpu_softc sc_mpu;	/* generic part */
54	void	*sc_ih;			/* ISA interrupt handler */
55	kmutex_t sc_lock;
56};
57
58static int	mpu_isa_match(device_t, cfdata_t, void *);
59static void	mpu_isa_attach(device_t, device_t, void *);
60
61CFATTACH_DECL_NEW(mpu_isa, sizeof(struct mpu_isa_softc),
62    mpu_isa_match, mpu_isa_attach, NULL, NULL);
63
64static int
65mpu_isa_match(device_t parent, cfdata_t match, void *aux)
66{
67	struct isa_attach_args *ia = aux;
68	struct mpu_isa_softc sc;
69	int r;
70
71	if (ia->ia_nio < 1)
72		return 0;
73	if (ia->ia_nirq < 1)
74		return 0;
75
76	if (ISA_DIRECT_CONFIG(ia))
77		return 0;
78
79	if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
80		return 0;
81	if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
82		return 0;
83
84	memset(&sc, 0, sizeof sc);
85	sc.sc_mpu.iot = ia->ia_iot;
86	if (bus_space_map(sc.sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 0,
87			  &sc.sc_mpu.ioh))
88		return 0;
89	r = mpu_find(&sc.sc_mpu);
90        bus_space_unmap(sc.sc_mpu.iot, sc.sc_mpu.ioh, MPU401_NPORT);
91	if (r) {
92		ia->ia_nio = 1;
93		ia->ia_io[0].ir_size = MPU401_NPORT;
94
95		ia->ia_nirq = 1;
96
97		ia->ia_niomem = 0;
98		ia->ia_ndrq = 0;
99	}
100	return r;
101}
102
103static void
104mpu_isa_attach(device_t parent, device_t self, void *aux)
105{
106	struct mpu_isa_softc *sc = device_private(self);
107	struct isa_attach_args *ia = aux;
108
109	aprint_naive("\n");
110	aprint_normal("\n");
111
112	if (bus_space_map(sc->sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT,
113	    0, &sc->sc_mpu.ioh)) {
114		aprint_error_dev(self,
115		    "mpu_isa_attach: bus_space_map failed\n");
116		return;
117	}
118
119	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
120	    IST_EDGE, IPL_AUDIO, mpu_intr, &sc->sc_mpu);
121
122	sc->sc_mpu.model = "Roland MPU-401 MIDI UART";
123	sc->sc_dev = self;
124	sc->sc_mpu.lock = &sc->sc_lock;
125	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_AUDIO);
126	mpu_attach(&sc->sc_mpu);
127}
128