1/*	$NetBSD: sb_isa.c,v 1.39 2019/05/08 13:40:18 isaki Exp $	*/
2
3/*
4 * Copyright (c) 1991-1993 Regents of the University of California.
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 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by the Computer Systems
18 *	Engineering Group at Lawrence Berkeley Laboratory.
19 * 4. Neither the name of the University nor of the Laboratory may be used
20 *    to endorse or promote products derived from this software without
21 *    specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 */
36
37#include <sys/cdefs.h>
38__KERNEL_RCSID(0, "$NetBSD: sb_isa.c,v 1.39 2019/05/08 13:40:18 isaki Exp $");
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/errno.h>
43#include <sys/ioctl.h>
44#include <sys/syslog.h>
45#include <sys/device.h>
46#include <sys/proc.h>
47
48#include <sys/bus.h>
49
50#include <sys/audioio.h>
51#include <dev/audio/audio_if.h>
52#include <dev/midi_if.h>
53
54#include <dev/isa/isavar.h>
55#include <dev/isa/isadmavar.h>
56
57#include <dev/isa/sbreg.h>
58#include <dev/isa/sbvar.h>
59
60#include <dev/isa/sbdspvar.h>
61
62static	int sbfind(device_t, struct sbdsp_softc *, int,
63	    struct isa_attach_args *, cfdata_t);
64
65int	sb_isa_match(device_t, cfdata_t, void *);
66void	sb_isa_attach(device_t, device_t, void *);
67
68CFATTACH_DECL_NEW(sb_isa, sizeof(struct sbdsp_softc),
69    sb_isa_match, sb_isa_attach, NULL, NULL);
70
71/*
72 * Probe / attach routines.
73 */
74
75/*
76 * Probe for the soundblaster hardware.
77 */
78int
79sb_isa_match(device_t parent, cfdata_t match, void *aux)
80{
81	struct isa_attach_args *ia = aux;
82	struct sbdsp_softc probesc, *sc = &probesc;
83
84	if (ia->ia_nio < 1)
85		return (0);
86	if (ia->ia_nirq < 1)
87		return (0);
88	if (ia->ia_ndrq < 1)
89		return (0);
90
91	if (ISA_DIRECT_CONFIG(ia))
92		return (0);
93
94	memset(sc, 0, sizeof *sc);
95	return sbfind(parent, sc, 1, aux, match);
96}
97
98static int
99sbfind(device_t parent, struct sbdsp_softc *sc, int probing,
100    struct isa_attach_args *ia, cfdata_t match)
101{
102	int rc = 0;
103
104	if (!SB_BASE_VALID(ia->ia_io[0].ir_addr)) {
105		printf("sb: configured iobase 0x%x invalid\n",
106		    ia->ia_io[0].ir_addr);
107		return 0;
108	}
109
110	sc->sc_ic = ia->ia_ic;
111
112	sc->sc_iot = ia->ia_iot;
113	/* Map i/o space [we map 24 ports which is the max of the sb and pro */
114	if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, SBP_NPORT, 0,
115	    &sc->sc_ioh))
116		return 0;
117
118	/* XXX These are only for setting chip configuration registers. */
119	sc->sc_iobase = ia->ia_io[0].ir_addr;
120	sc->sc_irq = ia->ia_irq[0].ir_irq;
121
122	sc->sc_drq8 = ia->ia_drq[0].ir_drq;
123	sc->sc_drq16 = ia->ia_drq[1].ir_drq;
124
125	if (!sbmatch(sc, probing, match))
126		goto bad;
127
128	rc = 1;
129
130	if (probing) {
131		ia->ia_nio = 1;
132		if (ISSBPROCLASS(sc))
133			ia->ia_io[0].ir_size = SBP_NPORT;
134		else
135			ia->ia_io[0].ir_size = SB_NPORT;
136
137		if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ)
138			ia->ia_ndrq = 1;
139		else
140			ia->ia_ndrq = 2;
141
142		ia->ia_nirq = 1;
143		ia->ia_irq[0].ir_irq = sc->sc_irq;
144
145		ia->ia_niomem = 0;
146	}
147
148bad:
149	bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT);
150	return rc;
151}
152
153
154/*
155 * Attach hardware to driver, attach hardware driver to audio
156 * pseudo-device driver .
157 */
158void
159sb_isa_attach(device_t parent, device_t self, void *aux)
160{
161	struct sbdsp_softc *sc = device_private(self);
162	struct isa_attach_args *ia = aux;
163
164	sc->sc_dev = self;
165
166	if (!sbfind(parent, sc, 0, ia, device_cfdata(self)) ||
167	    bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr,
168	    ia->ia_io[0].ir_size, 0, &sc->sc_ioh)) {
169		aprint_error_dev(self, "sbfind failed\n");
170		return;
171	}
172
173	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
174	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
175
176	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
177	    IST_EDGE, IPL_AUDIO, sbdsp_intr, sc);
178
179	sbattach(sc);
180}
181