1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* $OpenBSD: onyx.c,v 1.6 2005/12/28 10:08:07 kettenis Exp $ */
/*-
* Copyright (c) 2005 Tsubai Masanari. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* http://focus.ti.com/docs/prod/folders/print/pcm3052.html
*
* Datasheet is available from
* http://focus.ti.com/docs/prod/folders/print/pcm3052a.html
*/
#include <sys/param.h>
#include <sys/audioio.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <dev/audio_if.h>
#include <dev/ofw/openfirm.h>
#include <macppc/dev/dbdma.h>
#include <machine/autoconf.h>
#include <macppc/dev/i2svar.h>
#include <macppc/dev/ki2cvar.h>
#ifdef ONYX_DEBUG
# define DPRINTF printf
#else
# define DPRINTF while (0) printf
#endif
/* XXX */
#define PCM3052_I2C_ADDR 0x8c
/* PCM3052 registers */
#define PCM3052_REG_LEFT_VOLUME 0x41
#define PCM3052_REG_RIGHT_VOLUME 0x42
/* XXX */
#define onyx_softc i2s_softc
/* XXX */
void ki2c_setmode(struct ki2c_softc *, u_int, u_int);
int ki2c_write(struct device *, int, int, const void *, int);
int onyx_getdev(void *, struct audio_device *);
int onyx_match(struct device *, void *, void *);
void onyx_attach(struct device *, struct device *, void *);
void onyx_defer(struct device *);
void onyx_set_volume(struct onyx_softc *, int, int);
struct cfattach onyx_ca = {
sizeof(struct onyx_softc), onyx_match, onyx_attach
};
struct cfdriver onyx_cd = {
NULL, "onyx", DV_DULL
};
struct audio_hw_if onyx_hw_if = {
i2s_open,
i2s_close,
NULL,
i2s_query_encoding,
i2s_set_params,
i2s_round_blocksize,
NULL,
NULL,
NULL,
NULL,
NULL,
i2s_halt_output,
i2s_halt_input,
NULL,
onyx_getdev,
NULL,
i2s_set_port,
i2s_get_port,
i2s_query_devinfo,
i2s_allocm,
NULL,
i2s_round_buffersize,
i2s_mappage,
i2s_get_props,
i2s_trigger_output,
i2s_trigger_input,
};
struct audio_device onyx_device = {
"ONYX",
"",
"onyx"
};
int
onyx_match(struct device *parent, void *match, void *aux)
{
struct confargs *ca = aux;
int soundbus, soundchip, soundcodec;
int32_t layout = 0;
if (strcmp(ca->ca_name, "i2s") != 0)
return (0);
if ((soundbus = OF_child(ca->ca_node)) == 0 ||
(soundchip = OF_child(soundbus)) == 0)
return (0);
if (OF_getprop(soundchip, "platform-onyx-codec-ref",
&soundcodec, sizeof soundcodec) == sizeof soundcodec)
return (1);
/*
* Apple really messed up. First and second generation iMac
* G5 (PowerMac8,1 and PowerMac8,2) have a "deq" i2c device
* listed in the OF device tree, which is a telltale sign of
* snapper(4). But in reality that chip isn't there. So we
* match on "layout-id" instead.
*/
if (OF_getprop(soundchip, "layout-id", &layout, sizeof layout) &&
(layout == 0x2d || layout == 0x56))
return (1);
return (0);
}
void
onyx_attach(struct device *parent, struct device *self, void *aux)
{
struct onyx_softc *sc = (struct onyx_softc *)self;
sc->sc_setvolume = onyx_set_volume;
i2s_attach(parent, sc, aux);
config_defer(self, onyx_defer);
}
void
onyx_defer(struct device *dev)
{
struct onyx_softc *sc = (struct onyx_softc *)dev;
struct device *dv;
TAILQ_FOREACH(dv, &alldevs, dv_list)
if (strncmp(dv->dv_xname, "ki2c", 4) == 0 &&
strncmp(dv->dv_parent->dv_xname, "macobio", 7) == 0)
sc->sc_i2c = dv;
if (sc->sc_i2c == NULL) {
printf("%s: unable to find i2c\n", sc->sc_dev.dv_xname);
return;
}
/* XXX If i2c has failed to attach, what should we do? */
audio_attach_mi(&onyx_hw_if, sc, &sc->sc_dev);
deq_reset(sc);
onyx_set_volume(sc, 192, 192);
}
int
onyx_getdev(void *h, struct audio_device *retp)
{
*retp = onyx_device;
return (0);
}
void
onyx_set_volume(struct onyx_softc *sc, int left, int right)
{
u_int8_t data;
sc->sc_vol_l = left;
sc->sc_vol_r = right;
ki2c_setmode(sc->sc_i2c, I2C_STDSUBMODE, 0);
data = 128 + (left >> 1);
ki2c_write(sc->sc_i2c, PCM3052_I2C_ADDR,
PCM3052_REG_LEFT_VOLUME, &data, 1);
data = 128 + (right >> 1);
ki2c_write(sc->sc_i2c, PCM3052_I2C_ADDR,
PCM3052_REG_RIGHT_VOLUME, &data, 1);
}
|
