aoa.c revision 1.16 
1/*	$OpenBSD: aoa.c,v 1.16 2022/10/26 20:19:07 kn Exp $	*/
2
3/*-
4 * Copyright (c) 2005 Tsubai Masanari.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/*
30 * WORK-IN-PROGRESS AOAKeylargo audio driver.
31 */
32
33#include <sys/param.h>
34#include <sys/audioio.h>
35#include <sys/device.h>
36#include <sys/systm.h>
37
38#include <dev/audio_if.h>
39#include <dev/ofw/openfirm.h>
40#include <macppc/dev/dbdma.h>
41
42#include <machine/autoconf.h>
43
44#include <macppc/dev/i2svar.h>
45
46#ifdef AOA_DEBUG
47# define DPRINTF printf
48#else
49# define DPRINTF while (0) printf
50#endif
51
52/* XXX */
53#define aoa_softc i2s_softc
54
55int aoa_match(struct device *, void *, void *);
56void aoa_attach(struct device *, struct device *, void *);
57void aoa_defer(struct device *);
58void aoa_set_volume(struct aoa_softc *, int, int);
59
60const struct cfattach aoa_ca = {
61	sizeof(struct aoa_softc), aoa_match, aoa_attach
62};
63
64struct cfdriver aoa_cd = {
65	NULL, "aoa", DV_DULL
66};
67
68const struct audio_hw_if aoa_hw_if = {
69	.open = i2s_open,
70	.close = i2s_close,
71	.set_params = i2s_set_params,
72	.round_blocksize = i2s_round_blocksize,
73	.halt_output = i2s_halt_output,
74	.halt_input = i2s_halt_input,
75	.set_port = i2s_set_port,
76	.get_port = i2s_get_port,
77	.query_devinfo = i2s_query_devinfo,
78	.allocm = i2s_allocm,
79	.round_buffersize = i2s_round_buffersize,
80	.trigger_output = i2s_trigger_output,
81	.trigger_input = i2s_trigger_input,
82};
83
84int
85aoa_match(struct device *parent, void *match, void *aux)
86{
87	struct confargs *ca = aux;
88	int soundbus, soundchip;
89	char compat[32];
90
91	if (strcmp(ca->ca_name, "i2s") != 0)
92		return (0);
93
94	if ((soundbus = OF_child(ca->ca_node)) == 0 ||
95	    (soundchip = OF_child(soundbus)) == 0)
96		return (0);
97
98	bzero(compat, sizeof compat);
99	OF_getprop(soundchip, "compatible", compat, sizeof compat);
100
101	if (strcmp(compat, "AOAKeylargo") == 0 &&
102	    strcmp(hw_prod, "PowerBook5,4") != 0)
103		return (1);
104	if (strcmp(compat, "AOAK2") == 0)
105		return (1);
106	if (strcmp(compat, "AOAShasta") == 0)
107		return (1);
108
109	return (0);
110}
111
112void
113aoa_attach(struct device *parent, struct device *self, void *aux)
114{
115	struct aoa_softc *sc = (struct aoa_softc *)self;
116
117	sc->sc_setvolume = aoa_set_volume;
118
119	i2s_attach(parent, sc, aux);
120	config_defer(self, aoa_defer);
121}
122
123void
124aoa_defer(struct device *dev)
125{
126	struct aoa_softc *sc = (struct aoa_softc *)dev;
127
128	audio_attach_mi(&aoa_hw_if, sc, NULL, &sc->sc_dev);
129	deq_reset(sc);
130}
131
132void
133aoa_set_volume(struct aoa_softc *sc, int left, int right)
134{
135	/* This device doesn't provide volume control. */
136}
137