Merge branch 'x86/setup' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux...
[pandora-kernel.git] / sound / soc / pxa / mioa701_wm9713.c
1 /*
2  * Handles the Mitac mioa701 SoC system
3  *
4  * Copyright (C) 2008 Robert Jarzmik
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation in version 2 of the License.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  *
19  * This is a little schema of the sound interconnections :
20  *
21  *    Sagem X200                 Wolfson WM9713
22  *    +--------+             +-------------------+      Rear Speaker
23  *    |        |             |                   |           /-+
24  *    |        +--->----->---+MONOIN         SPKL+--->----+-+  |
25  *    |  GSM   |             |                   |        | |  |
26  *    |        +--->----->---+PCBEEP         SPKR+--->----+-+  |
27  *    |  CHIP  |             |                   |           \-+
28  *    |        +---<-----<---+MONO               |
29  *    |        |             |                   |      Front Speaker
30  *    +--------+             |                   |           /-+
31  *                           |                HPL+--->----+-+  |
32  *                           |                   |        | |  |
33  *                           |               OUT3+--->----+-+  |
34  *                           |                   |           \-+
35  *                           |                   |
36  *                           |                   |     Front Micro
37  *                           |                   |         +
38  *                           |               MIC1+-----<--+o+
39  *                           |                   |         +
40  *                           +-------------------+        ---
41  */
42
43 #include <linux/module.h>
44 #include <linux/moduleparam.h>
45 #include <linux/platform_device.h>
46
47 #include <asm/mach-types.h>
48 #include <mach/audio.h>
49
50 #include <sound/core.h>
51 #include <sound/pcm.h>
52 #include <sound/soc.h>
53 #include <sound/soc-dapm.h>
54 #include <sound/initval.h>
55 #include <sound/ac97_codec.h>
56
57 #include "pxa2xx-pcm.h"
58 #include "pxa2xx-ac97.h"
59 #include "../codecs/wm9713.h"
60
61 #define ARRAY_AND_SIZE(x)       (x), ARRAY_SIZE(x)
62
63 #define AC97_GPIO_PULL          0x58
64
65 /* Use GPIO8 for rear speaker amplifier */
66 static int rear_amp_power(struct snd_soc_codec *codec, int power)
67 {
68         unsigned short reg;
69
70         if (power) {
71                 reg = snd_soc_read(codec, AC97_GPIO_CFG);
72                 snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100);
73                 reg = snd_soc_read(codec, AC97_GPIO_PULL);
74                 snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15));
75         } else {
76                 reg = snd_soc_read(codec, AC97_GPIO_CFG);
77                 snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100);
78                 reg = snd_soc_read(codec, AC97_GPIO_PULL);
79                 snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15));
80         }
81
82         return 0;
83 }
84
85 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
86                           struct snd_kcontrol *kctl, int event)
87 {
88         struct snd_soc_codec *codec = widget->codec;
89
90         return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
91 }
92
93 /* mioa701 machine dapm widgets */
94 static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = {
95         SND_SOC_DAPM_SPK("Front Speaker", NULL),
96         SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event),
97         SND_SOC_DAPM_MIC("Headset", NULL),
98         SND_SOC_DAPM_LINE("GSM Line Out", NULL),
99         SND_SOC_DAPM_LINE("GSM Line In", NULL),
100         SND_SOC_DAPM_MIC("Headset Mic", NULL),
101         SND_SOC_DAPM_MIC("Front Mic", NULL),
102 };
103
104 static const struct snd_soc_dapm_route audio_map[] = {
105         /* Call Mic */
106         {"Mic Bias", NULL, "Front Mic"},
107         {"MIC1", NULL, "Mic Bias"},
108
109         /* Headset Mic */
110         {"LINEL", NULL, "Headset Mic"},
111         {"LINER", NULL, "Headset Mic"},
112
113         /* GSM Module */
114         {"MONOIN", NULL, "GSM Line Out"},
115         {"PCBEEP", NULL, "GSM Line Out"},
116         {"GSM Line In", NULL, "MONO"},
117
118         /* headphone connected to HPL, HPR */
119         {"Headset", NULL, "HPL"},
120         {"Headset", NULL, "HPR"},
121
122         /* front speaker connected to HPL, OUT3 */
123         {"Front Speaker", NULL, "HPL"},
124         {"Front Speaker", NULL, "OUT3"},
125
126         /* rear speaker connected to SPKL, SPKR */
127         {"Rear Speaker", NULL, "SPKL"},
128         {"Rear Speaker", NULL, "SPKR"},
129 };
130
131 static int mioa701_wm9713_init(struct snd_soc_codec *codec)
132 {
133         unsigned short reg;
134
135         /* Add mioa701 specific widgets */
136         snd_soc_dapm_new_controls(codec, ARRAY_AND_SIZE(mioa701_dapm_widgets));
137
138         /* Set up mioa701 specific audio path audio_mapnects */
139         snd_soc_dapm_add_routes(codec, ARRAY_AND_SIZE(audio_map));
140
141         /* Prepare GPIO8 for rear speaker amplifier */
142         reg = codec->read(codec, AC97_GPIO_CFG);
143         codec->write(codec, AC97_GPIO_CFG, reg | 0x0100);
144
145         /* Prepare MIC input */
146         reg = codec->read(codec, AC97_3D_CONTROL);
147         codec->write(codec, AC97_3D_CONTROL, reg | 0xc000);
148
149         snd_soc_dapm_enable_pin(codec, "Front Speaker");
150         snd_soc_dapm_enable_pin(codec, "Rear Speaker");
151         snd_soc_dapm_enable_pin(codec, "Front Mic");
152         snd_soc_dapm_enable_pin(codec, "GSM Line In");
153         snd_soc_dapm_enable_pin(codec, "GSM Line Out");
154         snd_soc_dapm_sync(codec);
155
156         return 0;
157 }
158
159 static struct snd_soc_ops mioa701_ops;
160
161 static struct snd_soc_dai_link mioa701_dai[] = {
162         {
163                 .name = "AC97",
164                 .stream_name = "AC97 HiFi",
165                 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
166                 .codec_dai = &wm9713_dai[WM9713_DAI_AC97_HIFI],
167                 .init = mioa701_wm9713_init,
168                 .ops = &mioa701_ops,
169         },
170         {
171                 .name = "AC97 Aux",
172                 .stream_name = "AC97 Aux",
173                 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
174                 .codec_dai = &wm9713_dai[WM9713_DAI_AC97_AUX],
175                 .ops = &mioa701_ops,
176         },
177 };
178
179 static struct snd_soc_card mioa701 = {
180         .name = "MioA701",
181         .platform = &pxa2xx_soc_platform,
182         .dai_link = mioa701_dai,
183         .num_links = ARRAY_SIZE(mioa701_dai),
184 };
185
186 static struct snd_soc_device mioa701_snd_devdata = {
187         .card = &mioa701,
188         .codec_dev = &soc_codec_dev_wm9713,
189 };
190
191 static struct platform_device *mioa701_snd_device;
192
193 static int mioa701_wm9713_probe(struct platform_device *pdev)
194 {
195         int ret;
196
197         if (!machine_is_mioa701())
198                 return -ENODEV;
199
200         dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will"
201                  "lead to overheating and possible destruction of your device."
202                  "Do not use without a good knowledge of mio's board design!\n");
203
204         mioa701_snd_device = platform_device_alloc("soc-audio", -1);
205         if (!mioa701_snd_device)
206                 return -ENOMEM;
207
208         platform_set_drvdata(mioa701_snd_device, &mioa701_snd_devdata);
209         mioa701_snd_devdata.dev = &mioa701_snd_device->dev;
210
211         ret = platform_device_add(mioa701_snd_device);
212         if (!ret)
213                 return 0;
214
215         platform_device_put(mioa701_snd_device);
216         return ret;
217 }
218
219 static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
220 {
221         platform_device_unregister(mioa701_snd_device);
222         return 0;
223 }
224
225 static struct platform_driver mioa701_wm9713_driver = {
226         .probe          = mioa701_wm9713_probe,
227         .remove         = __devexit_p(mioa701_wm9713_remove),
228         .driver         = {
229                 .name           = "mioa701-wm9713",
230                 .owner          = THIS_MODULE,
231         },
232 };
233
234 static int __init mioa701_asoc_init(void)
235 {
236         return platform_driver_register(&mioa701_wm9713_driver);
237 }
238
239 static void __exit mioa701_asoc_exit(void)
240 {
241         platform_driver_unregister(&mioa701_wm9713_driver);
242 }
243
244 module_init(mioa701_asoc_init);
245 module_exit(mioa701_asoc_exit);
246
247 /* Module information */
248 MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
249 MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
250 MODULE_LICENSE("GPL");