2 * Handles the Mitac mioa701 SoC system
4 * Copyright (C) 2008 Robert Jarzmik
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.
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.
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
19 * This is a little schema of the sound interconnections :
21 * Sagem X200 Wolfson WM9713
22 * +--------+ +-------------------+ Rear Speaker
24 * | +--->----->---+MONOIN SPKL+--->----+-+ |
26 * | +--->----->---+PCBEEP SPKR+--->----+-+ |
28 * | +---<-----<---+MONO |
29 * | | | | Front Speaker
33 * | OUT3+--->----+-+ |
40 * +-------------------+ ---
43 #include <linux/module.h>
44 #include <linux/moduleparam.h>
45 #include <linux/platform_device.h>
47 #include <asm/mach-types.h>
48 #include <mach/audio.h>
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>
57 #include "pxa2xx-ac97.h"
58 #include "../codecs/wm9713.h"
60 #define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
62 #define AC97_GPIO_PULL 0x58
64 /* Use GPIO8 for rear speaker amplifier */
65 static int rear_amp_power(struct snd_soc_codec *codec, int power)
70 reg = snd_soc_read(codec, AC97_GPIO_CFG);
71 snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100);
72 reg = snd_soc_read(codec, AC97_GPIO_PULL);
73 snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15));
75 reg = snd_soc_read(codec, AC97_GPIO_CFG);
76 snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100);
77 reg = snd_soc_read(codec, AC97_GPIO_PULL);
78 snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15));
84 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
85 struct snd_kcontrol *kctl, int event)
87 struct snd_soc_codec *codec = widget->codec;
89 return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
92 /* mioa701 machine dapm widgets */
93 static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = {
94 SND_SOC_DAPM_SPK("Front Speaker", NULL),
95 SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event),
96 SND_SOC_DAPM_MIC("Headset", NULL),
97 SND_SOC_DAPM_LINE("GSM Line Out", NULL),
98 SND_SOC_DAPM_LINE("GSM Line In", NULL),
99 SND_SOC_DAPM_MIC("Headset Mic", NULL),
100 SND_SOC_DAPM_MIC("Front Mic", NULL),
103 static const struct snd_soc_dapm_route audio_map[] = {
105 {"Mic Bias", NULL, "Front Mic"},
106 {"MIC1", NULL, "Mic Bias"},
109 {"LINEL", NULL, "Headset Mic"},
110 {"LINER", NULL, "Headset Mic"},
113 {"MONOIN", NULL, "GSM Line Out"},
114 {"PCBEEP", NULL, "GSM Line Out"},
115 {"GSM Line In", NULL, "MONO"},
117 /* headphone connected to HPL, HPR */
118 {"Headset", NULL, "HPL"},
119 {"Headset", NULL, "HPR"},
121 /* front speaker connected to HPL, OUT3 */
122 {"Front Speaker", NULL, "HPL"},
123 {"Front Speaker", NULL, "OUT3"},
125 /* rear speaker connected to SPKL, SPKR */
126 {"Rear Speaker", NULL, "SPKL"},
127 {"Rear Speaker", NULL, "SPKR"},
130 static int mioa701_wm9713_init(struct snd_soc_pcm_runtime *rtd)
132 struct snd_soc_codec *codec = rtd->codec;
133 struct snd_soc_dapm_context *dapm = &codec->dapm;
136 /* Add mioa701 specific widgets */
137 snd_soc_dapm_new_controls(dapm, ARRAY_AND_SIZE(mioa701_dapm_widgets));
139 /* Set up mioa701 specific audio path audio_mapnects */
140 snd_soc_dapm_add_routes(dapm, ARRAY_AND_SIZE(audio_map));
142 /* Prepare GPIO8 for rear speaker amplifier */
143 reg = codec->driver->read(codec, AC97_GPIO_CFG);
144 codec->driver->write(codec, AC97_GPIO_CFG, reg | 0x0100);
146 /* Prepare MIC input */
147 reg = codec->driver->read(codec, AC97_3D_CONTROL);
148 codec->driver->write(codec, AC97_3D_CONTROL, reg | 0xc000);
150 snd_soc_dapm_enable_pin(dapm, "Front Speaker");
151 snd_soc_dapm_enable_pin(dapm, "Rear Speaker");
152 snd_soc_dapm_enable_pin(dapm, "Front Mic");
153 snd_soc_dapm_enable_pin(dapm, "GSM Line In");
154 snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
155 snd_soc_dapm_sync(dapm);
160 static struct snd_soc_ops mioa701_ops;
162 static struct snd_soc_dai_link mioa701_dai[] = {
165 .stream_name = "AC97 HiFi",
166 .cpu_dai_name = "pxa-ac97.0",
167 .codec_dai_name = "wm9713-hifi",
168 .codec_name = "wm9713-codec",
169 .init = mioa701_wm9713_init,
170 .platform_name = "pxa-pcm-audio",
175 .stream_name = "AC97 Aux",
176 .cpu_dai_name = "pxa-ac97.1",
177 .codec_dai_name ="wm9713-aux",
178 .codec_name = "wm9713-codec",
179 .platform_name = "pxa-pcm-audio",
184 static struct snd_soc_card mioa701 = {
186 .dai_link = mioa701_dai,
187 .num_links = ARRAY_SIZE(mioa701_dai),
190 static struct platform_device *mioa701_snd_device;
192 static int mioa701_wm9713_probe(struct platform_device *pdev)
196 if (!machine_is_mioa701())
199 dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will"
200 "lead to overheating and possible destruction of your device."
201 "Do not use without a good knowledge of mio's board design!\n");
203 mioa701_snd_device = platform_device_alloc("soc-audio", -1);
204 if (!mioa701_snd_device)
207 platform_set_drvdata(mioa701_snd_device, &mioa701);
209 ret = platform_device_add(mioa701_snd_device);
213 platform_device_put(mioa701_snd_device);
217 static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
219 platform_device_unregister(mioa701_snd_device);
223 static struct platform_driver mioa701_wm9713_driver = {
224 .probe = mioa701_wm9713_probe,
225 .remove = __devexit_p(mioa701_wm9713_remove),
227 .name = "mioa701-wm9713",
228 .owner = THIS_MODULE,
232 static int __init mioa701_asoc_init(void)
234 return platform_driver_register(&mioa701_wm9713_driver);
237 static void __exit mioa701_asoc_exit(void)
239 platform_driver_unregister(&mioa701_wm9713_driver);
242 module_init(mioa701_asoc_init);
243 module_exit(mioa701_asoc_exit);
245 /* Module information */
246 MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
247 MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
248 MODULE_LICENSE("GPL");