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gerrit-public.fairphone.software / kernel / msm-4.19 / 70bf043b137aa9ff2711b16532774465e07a8f47 / . / sound / soc / pxa / mioa701_wm9713.c
blob: 19eda8bbfdafc8264de13284639ad610bcaf60cd [file] [log] [blame]
Robert Jarzmik8f0dc652009-02-07 14:01:58 +0100[diff] [blame]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 */
66static 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
85static 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 */
94static 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
104static 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
131static 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
159static struct snd_soc_ops mioa701_ops;
160
161static 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
179static 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
186static struct snd_soc_device mioa701_snd_devdata = {
187 .card = &mioa701,
188 .codec_dev = &soc_codec_dev_wm9713,
189};
190
191static struct platform_device *mioa701_snd_device;
192
193static 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
219static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
220{
221 platform_device_unregister(mioa701_snd_device);
222 return 0;
223}
224
225static 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
234static int __init mioa701_asoc_init(void)
235{
236 return platform_driver_register(&mioa701_wm9713_driver);
237}
238
239static void __exit mioa701_asoc_exit(void)
240{
241 platform_driver_unregister(&mioa701_wm9713_driver);
242}
243
244module_init(mioa701_asoc_init);
245module_exit(mioa701_asoc_exit);
246
247/* Module information */
248MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
249MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
250MODULE_LICENSE("GPL");