ASoC: add tavorevb3 machine driver for 88pm860x
[linux-2.6.git] / sound / soc / pxa / tavorevb3.c
1 /*
2  * tavorevb3.c -- SoC audio for Tavor EVB3
3  *
4  * Copyright (C) 2010 Marvell International Ltd.
5  *      Haojian Zhuang <haojian.zhuang@marvell.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/device.h>
15 #include <linux/clk.h>
16 #include <linux/i2c.h>
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/soc-dapm.h>
22 #include <sound/jack.h>
23
24 #include <asm/mach-types.h>
25
26 #include "../codecs/88pm860x-codec.h"
27 #include "pxa-ssp.h"
28
29 static int evb3_pm860x_init(struct snd_soc_pcm_runtime *rtd);
30
31 static struct platform_device *evb3_snd_device;
32
33 static struct snd_soc_jack hs_jack, mic_jack;
34
35 static struct snd_soc_jack_pin hs_jack_pins[] = {
36         { .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, },
37 };
38
39 static struct snd_soc_jack_pin mic_jack_pins[] = {
40         { .pin = "Headset Mic 2",       .mask = SND_JACK_MICROPHONE, },
41 };
42
43 /* tavorevb3 machine dapm widgets */
44 static const struct snd_soc_dapm_widget evb3_dapm_widgets[] = {
45         SND_SOC_DAPM_HP("Headset Stereophone", NULL),
46         SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
47         SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
48         SND_SOC_DAPM_SPK("Ext Speaker", NULL),
49         SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
50         SND_SOC_DAPM_MIC("Headset Mic 2", NULL),
51         SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
52 };
53
54 /* tavorevb3 machine audio map */
55 static const struct snd_soc_dapm_route audio_map[] = {
56         {"Headset Stereophone", NULL, "HS1"},
57         {"Headset Stereophone", NULL, "HS2"},
58
59         {"Ext Speaker", NULL, "LSP"},
60         {"Ext Speaker", NULL, "LSN"},
61
62         {"Lineout Out 1", NULL, "LINEOUT1"},
63         {"Lineout Out 2", NULL, "LINEOUT2"},
64
65         {"MIC1P", NULL, "Mic1 Bias"},
66         {"MIC1N", NULL, "Mic1 Bias"},
67         {"Mic1 Bias", NULL, "Ext Mic 1"},
68
69         {"MIC2P", NULL, "Mic1 Bias"},
70         {"MIC2N", NULL, "Mic1 Bias"},
71         {"Mic1 Bias", NULL, "Headset Mic 2"},
72
73         {"MIC3P", NULL, "Mic3 Bias"},
74         {"MIC3N", NULL, "Mic3 Bias"},
75         {"Mic3 Bias", NULL, "Ext Mic 3"},
76 };
77
78 static int evb3_i2s_hw_params(struct snd_pcm_substream *substream,
79                               struct snd_pcm_hw_params *params)
80 {
81         struct snd_soc_pcm_runtime *rtd = substream->private_data;
82         struct snd_soc_dai *codec_dai = rtd->codec_dai;
83         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
84         int width = snd_pcm_format_physical_width(params_format(params));
85         int ret;
86
87         ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_NET_PLL, 0,
88                                      PM860X_CLK_DIR_OUT);
89         if (ret < 0)
90                 return ret;
91
92         ret = snd_soc_dai_set_sysclk(codec_dai, 0, 0, PM860X_CLK_DIR_OUT);
93         if (ret < 0)
94                 return ret;
95
96         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
97                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
98         if (ret < 0)
99                 return ret;
100
101         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
102                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
103         if (ret < 0)
104                 return ret;
105
106         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 3, 3, 2, width);
107         return ret;
108 }
109
110 static struct snd_soc_ops evb3_i2s_ops = {
111         .hw_params      = evb3_i2s_hw_params,
112 };
113
114 static struct snd_soc_dai_link evb3_dai[] = {
115         {
116                 .name           = "88PM860x I2S",
117                 .stream_name    = "I2S Audio",
118                 .cpu_dai_name   = "pxa-ssp-dai.1",
119                 .codec_dai_name = "88pm860x-i2s",
120                 .platform_name  = "pxa-pcm-audio",
121                 .codec_name     = "88pm860x-codec",
122                 .init           = evb3_pm860x_init,
123                 .ops            = &evb3_i2s_ops,
124         },
125 };
126
127 static struct snd_soc_card snd_soc_card_evb3 = {
128         .name = "Tavor EVB3",
129         .dai_link = evb3_dai,
130         .num_links = ARRAY_SIZE(evb3_dai),
131 };
132
133 static int evb3_pm860x_init(struct snd_soc_pcm_runtime *rtd)
134 {
135         struct snd_soc_codec *codec = rtd->codec;
136         int ret;
137
138         snd_soc_dapm_new_controls(codec, evb3_dapm_widgets,
139                                   ARRAY_SIZE(evb3_dapm_widgets));
140         snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
141
142         /* connected pins */
143         snd_soc_dapm_enable_pin(codec, "Ext Speaker");
144         snd_soc_dapm_enable_pin(codec, "Ext Mic 1");
145         snd_soc_dapm_enable_pin(codec, "Ext Mic 3");
146         snd_soc_dapm_disable_pin(codec, "Headset Mic 2");
147         snd_soc_dapm_disable_pin(codec, "Headset Stereophone");
148
149         ret = snd_soc_dapm_sync(codec);
150         if (ret)
151                 return ret;
152
153         /* Headset jack detection */
154         snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
155                         | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
156                         &hs_jack);
157         snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
158                               hs_jack_pins);
159         snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
160                          &mic_jack);
161         snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
162                               mic_jack_pins);
163
164         /* headphone, microphone detection & headset short detection */
165         pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
166                               SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
167         pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
168         return 0;
169 }
170
171 static int __init tavorevb3_init(void)
172 {
173         int ret;
174
175         if (!machine_is_tavorevb3())
176                 return -ENODEV;
177         evb3_snd_device = platform_device_alloc("soc-audio", -1);
178         if (!evb3_snd_device)
179                 return -ENOMEM;
180
181         platform_set_drvdata(evb3_snd_device, &snd_soc_card_evb3);
182
183         ret = platform_device_add(evb3_snd_device);
184         if (ret)
185                 platform_device_put(evb3_snd_device);
186
187         return ret;
188 }
189
190 static void __exit tavorevb3_exit(void)
191 {
192         platform_device_unregister(evb3_snd_device);
193 }
194
195 module_init(tavorevb3_init);
196 module_exit(tavorevb3_exit);
197
198 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
199 MODULE_DESCRIPTION("ALSA SoC 88PM860x Tavor EVB3");
200 MODULE_LICENSE("GPL");