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/initval.h>
54 #include <sound/ac97_codec.h>
56 #include "../codecs/wm9713.h"
58 #define AC97_GPIO_PULL 0x58
60 /* Use GPIO8 for rear speaker amplifier */
61 static int rear_amp_power(struct snd_soc_codec *codec, int power)
66 reg = snd_soc_read(codec, AC97_GPIO_CFG);
67 snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100);
68 reg = snd_soc_read(codec, AC97_GPIO_PULL);
69 snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15));
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));
80 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
81 struct snd_kcontrol *kctl, int event)
83 struct snd_soc_card *card = widget->dapm->card;
84 struct snd_soc_pcm_runtime *rtd;
85 struct snd_soc_codec *codec;
87 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
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;
134 /* Prepare GPIO8 for rear speaker amplifier */
135 snd_soc_update_bits(codec, AC97_GPIO_CFG, 0x100, 0x100);
137 /* Prepare MIC input */
138 snd_soc_update_bits(codec, AC97_3D_CONTROL, 0xc000, 0xc000);
143 static struct snd_soc_ops mioa701_ops;
145 static struct snd_soc_dai_link mioa701_dai[] = {
148 .stream_name = "AC97 HiFi",
149 .cpu_dai_name = "pxa2xx-ac97",
150 .codec_dai_name = "wm9713-hifi",
151 .codec_name = "wm9713-codec",
152 .init = mioa701_wm9713_init,
153 .platform_name = "pxa-pcm-audio",
158 .stream_name = "AC97 Aux",
159 .cpu_dai_name = "pxa2xx-ac97-aux",
160 .codec_dai_name = "wm9713-aux",
161 .codec_name = "wm9713-codec",
162 .platform_name = "pxa-pcm-audio",
167 static struct snd_soc_card mioa701 = {
169 .owner = THIS_MODULE,
170 .dai_link = mioa701_dai,
171 .num_links = ARRAY_SIZE(mioa701_dai),
173 .dapm_widgets = mioa701_dapm_widgets,
174 .num_dapm_widgets = ARRAY_SIZE(mioa701_dapm_widgets),
175 .dapm_routes = audio_map,
176 .num_dapm_routes = ARRAY_SIZE(audio_map),
179 static int mioa701_wm9713_probe(struct platform_device *pdev)
183 if (!machine_is_mioa701())
186 mioa701.dev = &pdev->dev;
187 rc = devm_snd_soc_register_card(&pdev->dev, &mioa701);
189 dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will "
190 "lead to overheating and possible destruction of your device."
191 " Do not use without a good knowledge of mio's board design!\n");
195 static struct platform_driver mioa701_wm9713_driver = {
196 .probe = mioa701_wm9713_probe,
198 .name = "mioa701-wm9713",
199 .pm = &snd_soc_pm_ops,
203 module_platform_driver(mioa701_wm9713_driver);
205 /* Module information */
206 MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
207 MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
208 MODULE_LICENSE("GPL");
209 MODULE_ALIAS("platform:mioa701-wm9713");