ASoC: Decouple DAPM from CODECs
[linux-2.6.git] / sound / soc / pxa / saarb.c
1 /*
2  * saarb.c -- SoC audio for saarb
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 saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd);
30
31 static struct platform_device *saarb_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 /* saarb machine dapm widgets */
44 static const struct snd_soc_dapm_widget saarb_dapm_widgets[] = {
45         SND_SOC_DAPM_HP("Headphone 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", NULL),
51         SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
52 };
53
54 /* saarb 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 saarb_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         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
101                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
102         if (ret < 0)
103                 return ret;
104
105         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 3, 3, 2, width);
106
107         return ret;
108 }
109
110 static struct snd_soc_ops saarb_i2s_ops = {
111         .hw_params      = saarb_i2s_hw_params,
112 };
113
114 static struct snd_soc_dai_link saarb_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           = saarb_pm860x_init,
123                 .ops            = &saarb_i2s_ops,
124         },
125 };
126
127 static struct snd_soc_card snd_soc_card_saarb = {
128         .name = "Saarb",
129         .dai_link = saarb_dai,
130         .num_links = ARRAY_SIZE(saarb_dai),
131 };
132
133 static int saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd)
134 {
135         struct snd_soc_codec *codec = rtd->codec;
136         struct snd_soc_dapm_context *dapm = &codec->dapm;
137         int ret;
138
139         snd_soc_dapm_new_controls(dapm, saarb_dapm_widgets,
140                                   ARRAY_SIZE(saarb_dapm_widgets));
141         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
142
143         /* connected pins */
144         snd_soc_dapm_enable_pin(dapm, "Ext Speaker");
145         snd_soc_dapm_enable_pin(dapm, "Ext Mic 1");
146         snd_soc_dapm_enable_pin(dapm, "Ext Mic 3");
147         snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
148         snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
149
150         ret = snd_soc_dapm_sync(dapm);
151         if (ret)
152                 return ret;
153
154         /* Headset jack detection */
155         snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
156                         | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
157                         &hs_jack);
158         snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
159                               hs_jack_pins);
160         snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
161                          &mic_jack);
162         snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
163                               mic_jack_pins);
164
165         /* headphone, microphone detection & headset short detection */
166         pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
167                               SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
168         pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
169         return 0;
170 }
171
172 static int __init saarb_init(void)
173 {
174         int ret;
175
176         if (!machine_is_saarb())
177                 return -ENODEV;
178         saarb_snd_device = platform_device_alloc("soc-audio", -1);
179         if (!saarb_snd_device)
180                 return -ENOMEM;
181
182         platform_set_drvdata(saarb_snd_device, &snd_soc_card_saarb);
183
184         ret = platform_device_add(saarb_snd_device);
185         if (ret)
186                 platform_device_put(saarb_snd_device);
187
188         return ret;
189 }
190
191 static void __exit saarb_exit(void)
192 {
193         platform_device_unregister(saarb_snd_device);
194 }
195
196 module_init(saarb_init);
197 module_exit(saarb_exit);
198
199 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
200 MODULE_DESCRIPTION("ALSA SoC 88PM860x Saarb");
201 MODULE_LICENSE("GPL");