Merge commit 'v2.6.37-rc7' into devicetree/next
[pandora-kernel.git] / sound / soc / pxa / palm27x.c
1 /*
2  * linux/sound/soc/pxa/palm27x.c
3  *
4  * SoC Audio driver for Palm T|X, T5 and LifeDrive
5  *
6  * based on tosa.c
7  *
8  * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  *
14  */
15
16 #include <linux/module.h>
17 #include <linux/moduleparam.h>
18 #include <linux/device.h>
19 #include <linux/gpio.h>
20
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/soc.h>
24 #include <sound/soc-dapm.h>
25 #include <sound/jack.h>
26
27 #include <asm/mach-types.h>
28 #include <mach/audio.h>
29 #include <mach/palmasoc.h>
30
31 #include "../codecs/wm9712.h"
32 #include "pxa2xx-ac97.h"
33
34 static struct snd_soc_jack hs_jack;
35
36 /* Headphones jack detection DAPM pins */
37 static struct snd_soc_jack_pin hs_jack_pins[] = {
38         {
39                 .pin    = "Headphone Jack",
40                 .mask   = SND_JACK_HEADPHONE,
41         },
42 };
43
44 /* Headphones jack detection gpios */
45 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
46         [0] = {
47                 /* gpio is set on per-platform basis */
48                 .name           = "hp-gpio",
49                 .report         = SND_JACK_HEADPHONE,
50                 .debounce_time  = 200,
51         },
52 };
53
54 /* Palm27x machine dapm widgets */
55 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
56         SND_SOC_DAPM_HP("Headphone Jack", NULL),
57         SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
58         SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
59 };
60
61 /* PalmTX audio map */
62 static const struct snd_soc_dapm_route audio_map[] = {
63         /* headphone connected to HPOUTL, HPOUTR */
64         {"Headphone Jack", NULL, "HPOUTL"},
65         {"Headphone Jack", NULL, "HPOUTR"},
66
67         /* ext speaker connected to ROUT2, LOUT2 */
68         {"Ext. Speaker", NULL, "LOUT2"},
69         {"Ext. Speaker", NULL, "ROUT2"},
70
71         /* mic connected to MIC1 */
72         {"Ext. Microphone", NULL, "MIC1"},
73 };
74
75 static struct snd_soc_card palm27x_asoc;
76
77 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
78 {
79         struct snd_soc_codec *codec = rtd->codec;
80         int err;
81
82         /* add palm27x specific widgets */
83         err = snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets,
84                                 ARRAY_SIZE(palm27x_dapm_widgets));
85         if (err)
86                 return err;
87
88         /* set up palm27x specific audio path audio_map */
89         err = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
90         if (err)
91                 return err;
92
93         /* connected pins */
94         if (machine_is_palmld())
95                 snd_soc_dapm_enable_pin(codec, "MIC1");
96         snd_soc_dapm_enable_pin(codec, "HPOUTL");
97         snd_soc_dapm_enable_pin(codec, "HPOUTR");
98         snd_soc_dapm_enable_pin(codec, "LOUT2");
99         snd_soc_dapm_enable_pin(codec, "ROUT2");
100
101         /* not connected pins */
102         snd_soc_dapm_nc_pin(codec, "OUT3");
103         snd_soc_dapm_nc_pin(codec, "MONOOUT");
104         snd_soc_dapm_nc_pin(codec, "LINEINL");
105         snd_soc_dapm_nc_pin(codec, "LINEINR");
106         snd_soc_dapm_nc_pin(codec, "PCBEEP");
107         snd_soc_dapm_nc_pin(codec, "PHONE");
108         snd_soc_dapm_nc_pin(codec, "MIC2");
109
110         err = snd_soc_dapm_sync(codec);
111         if (err)
112                 return err;
113
114         /* Jack detection API stuff */
115         err = snd_soc_jack_new(codec, "Headphone Jack",
116                                 SND_JACK_HEADPHONE, &hs_jack);
117         if (err)
118                 return err;
119
120         err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
121                                 hs_jack_pins);
122         if (err)
123                 return err;
124
125         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
126                                 hs_jack_gpios);
127
128         return err;
129 }
130
131 static struct snd_soc_dai_link palm27x_dai[] = {
132 {
133         .name = "AC97 HiFi",
134         .stream_name = "AC97 HiFi",
135         .cpu_dai_name = "pxa-ac97.0",
136         .codec_dai_name =  "wm9712-hifi",
137         .codec_name = "wm9712-codec",
138         .platform_name = "pxa-pcm-audio",
139         .init = palm27x_ac97_init,
140 },
141 {
142         .name = "AC97 Aux",
143         .stream_name = "AC97 Aux",
144         .cpu_dai_name = "pxa-ac97.1",
145         .codec_dai_name = "wm9712-aux",
146         .codec_name = "wm9712-codec",
147         .platform_name = "pxa-pcm-audio",
148 },
149 };
150
151 static struct snd_soc_card palm27x_asoc = {
152         .name = "Palm/PXA27x",
153         .dai_link = palm27x_dai,
154         .num_links = ARRAY_SIZE(palm27x_dai),
155 };
156
157 static struct platform_device *palm27x_snd_device;
158
159 static int palm27x_asoc_probe(struct platform_device *pdev)
160 {
161         int ret;
162
163         if (!(machine_is_palmtx() || machine_is_palmt5() ||
164                 machine_is_palmld() || machine_is_palmte2()))
165                 return -ENODEV;
166
167         if (!pdev->dev.platform_data) {
168                 dev_err(&pdev->dev, "please supply platform_data\n");
169                 return -ENODEV;
170         }
171
172         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
173                         (pdev->dev.platform_data))->jack_gpio;
174
175         palm27x_snd_device = platform_device_alloc("soc-audio", -1);
176         if (!palm27x_snd_device)
177                 return -ENOMEM;
178
179         platform_set_drvdata(palm27x_snd_device, &palm27x_asoc);
180         ret = platform_device_add(palm27x_snd_device);
181
182         if (ret != 0)
183                 goto put_device;
184
185         return 0;
186
187 put_device:
188         platform_device_put(palm27x_snd_device);
189
190         return ret;
191 }
192
193 static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
194 {
195         platform_device_unregister(palm27x_snd_device);
196         return 0;
197 }
198
199 static struct platform_driver palm27x_wm9712_driver = {
200         .probe          = palm27x_asoc_probe,
201         .remove         = __devexit_p(palm27x_asoc_remove),
202         .driver         = {
203                 .name           = "palm27x-asoc",
204                 .owner          = THIS_MODULE,
205         },
206 };
207
208 static int __init palm27x_asoc_init(void)
209 {
210         return platform_driver_register(&palm27x_wm9712_driver);
211 }
212
213 static void __exit palm27x_asoc_exit(void)
214 {
215         platform_driver_unregister(&palm27x_wm9712_driver);
216 }
217
218 module_init(palm27x_asoc_init);
219 module_exit(palm27x_asoc_exit);
220
221 /* Module information */
222 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
223 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
224 MODULE_LICENSE("GPL");