1 /* $OpenBSD: onyx.c,v 1.18 2023/07/31 12:00:07 tobhe 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 * http://focus.ti.com/docs/prod/folders/print/pcm3052.html
31 *
32 * Datasheet is available from
33 * http://focus.ti.com/docs/prod/folders/print/pcm3052a.html
34 */
35
36 #include <sys/param.h>
37 #include <sys/audioio.h>
38 #include <sys/device.h>
39 #include <sys/systm.h>
40
41 #include <dev/audio_if.h>
42 #include <dev/ofw/openfirm.h>
43 #include <macppc/dev/dbdma.h>
44
45 #include <machine/autoconf.h>
46
47 #include <macppc/dev/i2svar.h>
48 #include <macppc/dev/kiicvar.h>
49
50 #ifdef ONYX_DEBUG
51 # define DPRINTF printf
52 #else
53 # define DPRINTF while (0) printf
54 #endif
55
56 /* XXX */
57 #define PCM3052_I2C_ADDR 0x8c
58
59 /* PCM3052 registers */
60 #define PCM3052_REG_LEFT_VOLUME 0x41
61 #define PCM3052_REG_RIGHT_VOLUME 0x42
62 #define PCM3052_REG_ADC_CONTROL 0x48
63
64 #define PCM3052_ADC_INPUT_MIC 0x20
65
66 /* XXX */
67 #define onyx_softc i2s_softc
68
69 /* XXX */
70 void kiic_setmode(struct kiic_softc *, u_int, u_int);
71 int kiic_write(struct device *, int, int, const void *, int);
72
73 int onyx_match(struct device *, void *, void *);
74 void onyx_attach(struct device *, struct device *, void *);
75 void onyx_defer(struct device *);
76 void onyx_set_volume(struct onyx_softc *, int, int);
77 void onyx_set_input(struct onyx_softc *, int);
78
79 const struct cfattach onyx_ca = {
80 sizeof(struct onyx_softc), onyx_match, onyx_attach
81 };
82
83 struct cfdriver onyx_cd = {
84 NULL, "onyx", DV_DULL
85 };
86
87 const struct audio_hw_if onyx_hw_if = {
88 .open = i2s_open,
89 .close = i2s_close,
90 .set_params = i2s_set_params,
91 .round_blocksize = i2s_round_blocksize,
92 .halt_output =i2s_halt_output,
93 .halt_input = i2s_halt_input,
94 .set_port = i2s_set_port,
95 .get_port = i2s_get_port,
96 .query_devinfo = i2s_query_devinfo,
97 .allocm = i2s_allocm,
98 .round_buffersize = i2s_round_buffersize,
99 .trigger_output = i2s_trigger_output,
100 .trigger_input = i2s_trigger_input,
101 };
102
103 int
onyx_match(struct device * parent,void * match,void * aux)104 onyx_match(struct device *parent, void *match, void *aux)
105 {
106 struct confargs *ca = aux;
107 int soundbus, soundchip, soundcodec;
108 int32_t layout = 0;
109
110 if (strcmp(ca->ca_name, "i2s") != 0)
111 return (0);
112
113 if ((soundbus = OF_child(ca->ca_node)) == 0 ||
114 (soundchip = OF_child(soundbus)) == 0)
115 return (0);
116
117 if (OF_getprop(soundchip, "platform-onyx-codec-ref",
118 &soundcodec, sizeof soundcodec) == sizeof soundcodec)
119 return (1);
120
121 /*
122 * Apple really messed up. First and second generation iMac
123 * G5 (PowerMac8,1 and PowerMac8,2) have a "deq" i2c device
124 * listed in the OF device tree, which is a telltale sign of
125 * snapper(4). But in reality that chip isn't there. So we
126 * match on "layout-id" instead.
127 */
128 if (OF_getprop(soundchip, "layout-id", &layout, sizeof layout) &&
129 (layout == 0x2d || layout == 0x56))
130 return (1);
131
132 return (0);
133 }
134
135 void
onyx_attach(struct device * parent,struct device * self,void * aux)136 onyx_attach(struct device *parent, struct device *self, void *aux)
137 {
138 struct onyx_softc *sc = (struct onyx_softc *)self;
139
140 sc->sc_setvolume = onyx_set_volume;
141 sc->sc_setinput = onyx_set_input;
142
143 i2s_attach(parent, sc, aux);
144 config_defer(self, onyx_defer);
145 }
146
147 void
onyx_defer(struct device * dev)148 onyx_defer(struct device *dev)
149 {
150 struct onyx_softc *sc = (struct onyx_softc *)dev;
151 struct device *dv;
152
153 TAILQ_FOREACH(dv, &alldevs, dv_list)
154 if (strcmp(dv->dv_cfdata->cf_driver->cd_name, "kiic") == 0 &&
155 strcmp(dv->dv_parent->dv_cfdata->cf_driver->cd_name, "macobio") == 0)
156 sc->sc_i2c = dv;
157 if (sc->sc_i2c == NULL) {
158 printf("%s: unable to find i2c\n", sc->sc_dev.dv_xname);
159 return;
160 }
161
162 /* XXX If i2c has failed to attach, what should we do? */
163
164 audio_attach_mi(&onyx_hw_if, sc, NULL, &sc->sc_dev);
165
166 deq_reset(sc);
167 onyx_set_volume(sc, 192, 192);
168 onyx_set_input(sc, 1);
169 }
170
171 void
onyx_set_volume(struct onyx_softc * sc,int left,int right)172 onyx_set_volume(struct onyx_softc *sc, int left, int right)
173 {
174 u_int8_t data;
175
176 sc->sc_vol_l = left;
177 sc->sc_vol_r = right;
178
179 kiic_setmode(sc->sc_i2c, I2C_STDSUBMODE, 0);
180 data = 128 + (left >> 1);
181 kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR,
182 PCM3052_REG_LEFT_VOLUME, &data, 1);
183 data = 128 + (right >> 1);
184 kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR,
185 PCM3052_REG_RIGHT_VOLUME, &data, 1);
186 }
187
188 void
onyx_set_input(struct onyx_softc * sc,int mask)189 onyx_set_input(struct onyx_softc *sc, int mask)
190 {
191 uint8_t data = 0;
192
193 sc->sc_record_source = mask;
194
195 switch (mask) {
196 case 1 << 0: /* microphone */
197 data = PCM3052_ADC_INPUT_MIC;
198 break;
199 case 1 << 1: /* line in */
200 data = 0;
201 break;
202 }
203 data |= 12; /* +4dB */
204
205 kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR,
206 PCM3052_REG_ADC_CONTROL, &data, 1);
207 }
208