aoa.c revision 1.7 
1/*	$OpenBSD: aoa.c,v 1.7 2016/07/02 16:28:50 mglocker 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_getdev(void *, struct audio_device *);
56int aoa_match(struct device *, void *, void *);
57void aoa_attach(struct device *, struct device *, void *);
58void aoa_defer(struct device *);
59void aoa_set_volume(struct aoa_softc *, int, int);
60void aoa_get_default_params(void *, int, struct audio_params *);
61
62struct cfattach aoa_ca = {
63	sizeof(struct aoa_softc), aoa_match, aoa_attach
64};
65
66struct cfdriver aoa_cd = {
67	NULL, "aoa", DV_DULL
68};
69
70struct audio_hw_if aoa_hw_if = {
71	i2s_open,
72	i2s_close,
73	NULL,
74	i2s_query_encoding,
75	i2s_set_params,
76	i2s_round_blocksize,
77	NULL,
78	NULL,
79	NULL,
80	NULL,
81	NULL,
82	i2s_halt_output,
83	i2s_halt_input,
84	NULL,
85	aoa_getdev,
86	NULL,
87	i2s_set_port,
88	i2s_get_port,
89	i2s_query_devinfo,
90	i2s_allocm,
91	NULL,
92	i2s_round_buffersize,
93	i2s_mappage,
94	i2s_get_props,
95	i2s_trigger_output,
96	i2s_trigger_input,
97	aoa_get_default_params
98};
99
100struct audio_device aoa_device = {
101	"AOA",
102	"",
103	"aoa"
104};
105
106int
107aoa_match(struct device *parent, void *match, void *aux)
108{
109	struct confargs *ca = aux;
110	int soundbus, soundchip;
111	char compat[32];
112
113	if (strcmp(ca->ca_name, "i2s") != 0)
114		return (0);
115
116	if ((soundbus = OF_child(ca->ca_node)) == 0 ||
117	    (soundchip = OF_child(soundbus)) == 0)
118		return (0);
119
120	bzero(compat, sizeof compat);
121	OF_getprop(soundchip, "compatible", compat, sizeof compat);
122
123	if (strcmp(compat, "AOAKeylargo") == 0)
124		return (1);
125	if (strcmp(compat, "AOAK2") == 0)
126		return (1);
127	if (strcmp(compat, "AOAShasta") == 0)
128		return (1);
129
130	return (0);
131}
132
133void
134aoa_attach(struct device *parent, struct device *self, void *aux)
135{
136	struct aoa_softc *sc = (struct aoa_softc *)self;
137
138	sc->sc_setvolume = aoa_set_volume;
139
140	i2s_attach(parent, sc, aux);
141	config_defer(self, aoa_defer);
142}
143
144void
145aoa_defer(struct device *dev)
146{
147	struct aoa_softc *sc = (struct aoa_softc *)dev;
148
149	audio_attach_mi(&aoa_hw_if, sc, &sc->sc_dev);
150	deq_reset(sc);
151}
152
153int
154aoa_getdev(void *h, struct audio_device *retp)
155{
156	*retp = aoa_device;
157	return (0);
158}
159
160void
161aoa_set_volume(struct aoa_softc *sc, int left, int right)
162{
163	/* This device doesn't provide volume control. */
164}
165
166void
167aoa_get_default_params(void *addr, int mode, struct audio_params *params)
168{
169	i2s_get_default_params(params);
170}
171