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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
/*
* sdp4430.c -- SoC audio for TI OMAP4430 SDP
*
* Author: Misael Lopez Cruz <x0052729@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/mfd/twl6040.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <asm/mach-types.h>
#include <plat/hardware.h>
#include <plat/mux.h>
#include "mcpdm.h"
#include "omap-pcm.h"
#include "../codecs/twl6040.h"
static int sdp4430_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int clk_id, freq;
int ret;
clk_id = twl6040_get_clk_id(rtd->codec);
if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
freq = 38400000;
else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
freq = 32768;
else
return -EINVAL;
/* set the codec mclk */
ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
SND_SOC_CLOCK_IN);
if (ret) {
printk(KERN_ERR "can't set codec system clock\n");
return ret;
}
return ret;
}
static struct snd_soc_ops sdp4430_ops = {
.hw_params = sdp4430_hw_params,
};
/* Headset jack */
static struct snd_soc_jack hs_jack;
/*Headset jack detection DAPM pins */
static struct snd_soc_jack_pin hs_jack_pins[] = {
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
{
.pin = "Headset Stereophone",
.mask = SND_JACK_HEADPHONE,
},
};
/* SDP4430 machine DAPM */
static const struct snd_soc_dapm_widget sdp4430_twl6040_dapm_widgets[] = {
SND_SOC_DAPM_MIC("Ext Mic", NULL),
SND_SOC_DAPM_SPK("Ext Spk", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_HP("Headset Stereophone", NULL),
SND_SOC_DAPM_SPK("Earphone Spk", NULL),
SND_SOC_DAPM_INPUT("Aux/FM Stereo In"),
};
static const struct snd_soc_dapm_route audio_map[] = {
/* External Mics: MAINMIC, SUBMIC with bias*/
{"MAINMIC", NULL, "Main Mic Bias"},
{"SUBMIC", NULL, "Main Mic Bias"},
{"Main Mic Bias", NULL, "Ext Mic"},
/* External Speakers: HFL, HFR */
{"Ext Spk", NULL, "HFL"},
{"Ext Spk", NULL, "HFR"},
/* Headset Mic: HSMIC with bias */
{"HSMIC", NULL, "Headset Mic Bias"},
{"Headset Mic Bias", NULL, "Headset Mic"},
/* Headset Stereophone (Headphone): HSOL, HSOR */
{"Headset Stereophone", NULL, "HSOL"},
{"Headset Stereophone", NULL, "HSOR"},
/* Earphone speaker */
{"Earphone Spk", NULL, "EP"},
/* Aux/FM Stereo In: AFML, AFMR */
{"AFML", NULL, "Aux/FM Stereo In"},
{"AFMR", NULL, "Aux/FM Stereo In"},
};
static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
int ret;
/* Add SDP4430 specific widgets */
ret = snd_soc_dapm_new_controls(dapm, sdp4430_twl6040_dapm_widgets,
ARRAY_SIZE(sdp4430_twl6040_dapm_widgets));
if (ret)
return ret;
/* Set up SDP4430 specific audio path audio_map */
snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
/* SDP4430 connected pins */
snd_soc_dapm_enable_pin(dapm, "Ext Mic");
snd_soc_dapm_enable_pin(dapm, "Ext Spk");
snd_soc_dapm_enable_pin(dapm, "AFML");
snd_soc_dapm_enable_pin(dapm, "AFMR");
snd_soc_dapm_enable_pin(dapm, "Headset Mic");
snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
ret = snd_soc_dapm_sync(dapm);
if (ret)
return ret;
/* Headset jack detection */
ret = snd_soc_jack_new(codec, "Headset Jack",
SND_JACK_HEADSET, &hs_jack);
if (ret)
return ret;
ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
hs_jack_pins);
if (machine_is_omap_4430sdp())
twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
else
snd_soc_jack_report(&hs_jack, SND_JACK_HEADSET, SND_JACK_HEADSET);
return ret;
}
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link sdp4430_dai = {
.name = "TWL6040",
.stream_name = "TWL6040",
.cpu_dai_name ="omap-mcpdm-dai",
.codec_dai_name = "twl6040-hifi",
.platform_name = "omap-pcm-audio",
.codec_name = "twl6040-codec",
.init = sdp4430_twl6040_init,
.ops = &sdp4430_ops,
};
/* Audio machine driver */
static struct snd_soc_card snd_soc_sdp4430 = {
.name = "SDP4430",
.dai_link = &sdp4430_dai,
.num_links = 1,
};
static struct platform_device *sdp4430_snd_device;
static int __init sdp4430_soc_init(void)
{
int ret;
if (!machine_is_omap_4430sdp())
return -ENODEV;
printk(KERN_INFO "SDP4430 SoC init\n");
sdp4430_snd_device = platform_device_alloc("soc-audio", -1);
if (!sdp4430_snd_device) {
printk(KERN_ERR "Platform device allocation failed\n");
return -ENOMEM;
}
platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430);
ret = platform_device_add(sdp4430_snd_device);
if (ret)
goto err;
return 0;
err:
printk(KERN_ERR "Unable to add platform device\n");
platform_device_put(sdp4430_snd_device);
return ret;
}
module_init(sdp4430_soc_init);
static void __exit sdp4430_soc_exit(void)
{
platform_device_unregister(sdp4430_snd_device);
}
module_exit(sdp4430_soc_exit);
MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
MODULE_DESCRIPTION("ALSA SoC SDP4430");
MODULE_LICENSE("GPL");
|
