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");