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/initval.h>
54 #include <sound/ac97_codec.h>
55
56 #include "pxa2xx-ac97.h"
57 #include "../codecs/wm9713.h"
58
59 #define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
60
61 #define AC97_GPIO_PULL 0x58
62
63 /* Use GPIO8 for rear speaker amplifier */
rear_amp_power(struct snd_soc_codec * codec,int power)64 static int rear_amp_power(struct snd_soc_codec *codec, int power)
65 {
66 unsigned short reg;
67
68 if (power) {
69 reg = snd_soc_read(codec, AC97_GPIO_CFG);
70 snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100);
71 reg = snd_soc_read(codec, AC97_GPIO_PULL);
72 snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15));
73 } else {
74 reg = snd_soc_read(codec, AC97_GPIO_CFG);
75 snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100);
76 reg = snd_soc_read(codec, AC97_GPIO_PULL);
77 snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15));
78 }
79
80 return 0;
81 }
82
rear_amp_event(struct snd_soc_dapm_widget * widget,struct snd_kcontrol * kctl,int event)83 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
84 struct snd_kcontrol *kctl, int event)
85 {
86 struct snd_soc_codec *codec = widget->codec;
87
88 return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
89 }
90
91 /* mioa701 machine dapm widgets */
92 static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = {
93 SND_SOC_DAPM_SPK("Front Speaker", NULL),
94 SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event),
95 SND_SOC_DAPM_MIC("Headset", NULL),
96 SND_SOC_DAPM_LINE("GSM Line Out", NULL),
97 SND_SOC_DAPM_LINE("GSM Line In", NULL),
98 SND_SOC_DAPM_MIC("Headset Mic", NULL),
99 SND_SOC_DAPM_MIC("Front Mic", NULL),
100 };
101
102 static const struct snd_soc_dapm_route audio_map[] = {
103 /* Call Mic */
104 {"Mic Bias", NULL, "Front Mic"},
105 {"MIC1", NULL, "Mic Bias"},
106
107 /* Headset Mic */
108 {"LINEL", NULL, "Headset Mic"},
109 {"LINER", NULL, "Headset Mic"},
110
111 /* GSM Module */
112 {"MONOIN", NULL, "GSM Line Out"},
113 {"PCBEEP", NULL, "GSM Line Out"},
114 {"GSM Line In", NULL, "MONO"},
115
116 /* headphone connected to HPL, HPR */
117 {"Headset", NULL, "HPL"},
118 {"Headset", NULL, "HPR"},
119
120 /* front speaker connected to HPL, OUT3 */
121 {"Front Speaker", NULL, "HPL"},
122 {"Front Speaker", NULL, "OUT3"},
123
124 /* rear speaker connected to SPKL, SPKR */
125 {"Rear Speaker", NULL, "SPKL"},
126 {"Rear Speaker", NULL, "SPKR"},
127 };
128
mioa701_wm9713_init(struct snd_soc_pcm_runtime * rtd)129 static int mioa701_wm9713_init(struct snd_soc_pcm_runtime *rtd)
130 {
131 struct snd_soc_codec *codec = rtd->codec;
132 struct snd_soc_dapm_context *dapm = &codec->dapm;
133 unsigned short reg;
134
135 /* Add mioa701 specific widgets */
136 snd_soc_dapm_new_controls(dapm, ARRAY_AND_SIZE(mioa701_dapm_widgets));
137
138 /* Set up mioa701 specific audio path audio_mapnects */
139 snd_soc_dapm_add_routes(dapm, ARRAY_AND_SIZE(audio_map));
140
141 /* Prepare GPIO8 for rear speaker amplifier */
142 reg = codec->driver->read(codec, AC97_GPIO_CFG);
143 codec->driver->write(codec, AC97_GPIO_CFG, reg | 0x0100);
144
145 /* Prepare MIC input */
146 reg = codec->driver->read(codec, AC97_3D_CONTROL);
147 codec->driver->write(codec, AC97_3D_CONTROL, reg | 0xc000);
148
149 snd_soc_dapm_enable_pin(dapm, "Front Speaker");
150 snd_soc_dapm_enable_pin(dapm, "Rear Speaker");
151 snd_soc_dapm_enable_pin(dapm, "Front Mic");
152 snd_soc_dapm_enable_pin(dapm, "GSM Line In");
153 snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
154
155 return 0;
156 }
157
158 static struct snd_soc_ops mioa701_ops;
159
160 static struct snd_soc_dai_link mioa701_dai[] = {
161 {
162 .name = "AC97",
163 .stream_name = "AC97 HiFi",
164 .cpu_dai_name = "pxa2xx-ac97",
165 .codec_dai_name = "wm9713-hifi",
166 .codec_name = "wm9713-codec",
167 .init = mioa701_wm9713_init,
168 .platform_name = "pxa-pcm-audio",
169 .ops = &mioa701_ops,
170 },
171 {
172 .name = "AC97 Aux",
173 .stream_name = "AC97 Aux",
174 .cpu_dai_name = "pxa2xx-ac97-aux",
175 .codec_dai_name ="wm9713-aux",
176 .codec_name = "wm9713-codec",
177 .platform_name = "pxa-pcm-audio",
178 .ops = &mioa701_ops,
179 },
180 };
181
182 static struct snd_soc_card mioa701 = {
183 .name = "MioA701",
184 .owner = THIS_MODULE,
185 .dai_link = mioa701_dai,
186 .num_links = ARRAY_SIZE(mioa701_dai),
187 };
188
189 static struct platform_device *mioa701_snd_device;
190
mioa701_wm9713_probe(struct platform_device * pdev)191 static int mioa701_wm9713_probe(struct platform_device *pdev)
192 {
193 int ret;
194
195 if (!machine_is_mioa701())
196 return -ENODEV;
197
198 dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will"
199 "lead to overheating and possible destruction of your device."
200 "Do not use without a good knowledge of mio's board design!\n");
201
202 mioa701_snd_device = platform_device_alloc("soc-audio", -1);
203 if (!mioa701_snd_device)
204 return -ENOMEM;
205
206 platform_set_drvdata(mioa701_snd_device, &mioa701);
207
208 ret = platform_device_add(mioa701_snd_device);
209 if (!ret)
210 return 0;
211
212 platform_device_put(mioa701_snd_device);
213 return ret;
214 }
215
mioa701_wm9713_remove(struct platform_device * pdev)216 static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
217 {
218 platform_device_unregister(mioa701_snd_device);
219 return 0;
220 }
221
222 static struct platform_driver mioa701_wm9713_driver = {
223 .probe = mioa701_wm9713_probe,
224 .remove = __devexit_p(mioa701_wm9713_remove),
225 .driver = {
226 .name = "mioa701-wm9713",
227 .owner = THIS_MODULE,
228 },
229 };
230
231 module_platform_driver(mioa701_wm9713_driver);
232
233 /* Module information */
234 MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
235 MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
236 MODULE_LICENSE("GPL");
237