Merge branches 'next/ar7', 'next/ath79', 'next/bcm63xx', 'next/bmips', 'next/cavium...
[linux-2.6.git] / sound / soc / au1x / db1200.c
1 /*
2  * DB1200/DB1300/DB1550 ASoC audio fabric support code.
3  *
4  * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com>
5  *
6  */
7
8 #include <linux/module.h>
9 #include <linux/moduleparam.h>
10 #include <linux/timer.h>
11 #include <linux/interrupt.h>
12 #include <linux/platform_device.h>
13 #include <sound/core.h>
14 #include <sound/pcm.h>
15 #include <sound/soc.h>
16 #include <asm/mach-au1x00/au1000.h>
17 #include <asm/mach-au1x00/au1xxx_psc.h>
18 #include <asm/mach-au1x00/au1xxx_dbdma.h>
19 #include <asm/mach-db1x00/bcsr.h>
20
21 #include "../codecs/wm8731.h"
22 #include "psc.h"
23
24 static struct platform_device_id db1200_pids[] = {
25         {
26                 .name           = "db1200-ac97",
27                 .driver_data    = 0,
28         }, {
29                 .name           = "db1200-i2s",
30                 .driver_data    = 1,
31         }, {
32                 .name           = "db1300-ac97",
33                 .driver_data    = 2,
34         }, {
35                 .name           = "db1300-i2s",
36                 .driver_data    = 3,
37         }, {
38                 .name           = "db1550-ac97",
39                 .driver_data    = 4,
40         }, {
41                 .name           = "db1550-i2s",
42                 .driver_data    = 5,
43         },
44         {},
45 };
46
47 /*-------------------------  AC97 PART  ---------------------------*/
48
49 static struct snd_soc_dai_link db1200_ac97_dai = {
50         .name           = "AC97",
51         .stream_name    = "AC97 HiFi",
52         .codec_dai_name = "ac97-hifi",
53         .cpu_dai_name   = "au1xpsc_ac97.1",
54         .platform_name  = "au1xpsc-pcm.1",
55         .codec_name     = "ac97-codec.1",
56 };
57
58 static struct snd_soc_card db1200_ac97_machine = {
59         .name           = "DB1200_AC97",
60         .dai_link       = &db1200_ac97_dai,
61         .num_links      = 1,
62 };
63
64 static struct snd_soc_dai_link db1300_ac97_dai = {
65         .name           = "AC97",
66         .stream_name    = "AC97 HiFi",
67         .codec_dai_name = "wm9712-hifi",
68         .cpu_dai_name   = "au1xpsc_ac97.1",
69         .platform_name  = "au1xpsc-pcm.1",
70         .codec_name     = "wm9712-codec.1",
71 };
72
73 static struct snd_soc_card db1300_ac97_machine = {
74         .name           = "DB1300_AC97",
75         .dai_link       = &db1300_ac97_dai,
76         .num_links      = 1,
77 };
78
79 static struct snd_soc_card db1550_ac97_machine = {
80         .name           = "DB1550_AC97",
81         .dai_link       = &db1200_ac97_dai,
82         .num_links      = 1,
83 };
84
85 /*-------------------------  I2S PART  ---------------------------*/
86
87 static int db1200_i2s_startup(struct snd_pcm_substream *substream)
88 {
89         struct snd_soc_pcm_runtime *rtd = substream->private_data;
90         struct snd_soc_dai *codec_dai = rtd->codec_dai;
91         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
92         int ret;
93
94         /* WM8731 has its own 12MHz crystal */
95         snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
96                                 12000000, SND_SOC_CLOCK_IN);
97
98         /* codec is bitclock and lrclk master */
99         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
100                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
101         if (ret < 0)
102                 goto out;
103
104         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
105                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
106         if (ret < 0)
107                 goto out;
108
109         ret = 0;
110 out:
111         return ret;
112 }
113
114 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
115         .startup        = db1200_i2s_startup,
116 };
117
118 static struct snd_soc_dai_link db1200_i2s_dai = {
119         .name           = "WM8731",
120         .stream_name    = "WM8731 PCM",
121         .codec_dai_name = "wm8731-hifi",
122         .cpu_dai_name   = "au1xpsc_i2s.1",
123         .platform_name  = "au1xpsc-pcm.1",
124         .codec_name     = "wm8731.0-001b",
125         .ops            = &db1200_i2s_wm8731_ops,
126 };
127
128 static struct snd_soc_card db1200_i2s_machine = {
129         .name           = "DB1200_I2S",
130         .dai_link       = &db1200_i2s_dai,
131         .num_links      = 1,
132 };
133
134 static struct snd_soc_dai_link db1300_i2s_dai = {
135         .name           = "WM8731",
136         .stream_name    = "WM8731 PCM",
137         .codec_dai_name = "wm8731-hifi",
138         .cpu_dai_name   = "au1xpsc_i2s.2",
139         .platform_name  = "au1xpsc-pcm.2",
140         .codec_name     = "wm8731.0-001b",
141         .ops            = &db1200_i2s_wm8731_ops,
142 };
143
144 static struct snd_soc_card db1300_i2s_machine = {
145         .name           = "DB1300_I2S",
146         .dai_link       = &db1300_i2s_dai,
147         .num_links      = 1,
148 };
149
150 static struct snd_soc_dai_link db1550_i2s_dai = {
151         .name           = "WM8731",
152         .stream_name    = "WM8731 PCM",
153         .codec_dai_name = "wm8731-hifi",
154         .cpu_dai_name   = "au1xpsc_i2s.3",
155         .platform_name  = "au1xpsc-pcm.3",
156         .codec_name     = "wm8731.0-001b",
157         .ops            = &db1200_i2s_wm8731_ops,
158 };
159
160 static struct snd_soc_card db1550_i2s_machine = {
161         .name           = "DB1550_I2S",
162         .dai_link       = &db1550_i2s_dai,
163         .num_links      = 1,
164 };
165
166 /*-------------------------  COMMON PART  ---------------------------*/
167
168 static struct snd_soc_card *db1200_cards[] __devinitdata = {
169         &db1200_ac97_machine,
170         &db1200_i2s_machine,
171         &db1300_ac97_machine,
172         &db1300_i2s_machine,
173         &db1550_ac97_machine,
174         &db1550_i2s_machine,
175 };
176
177 static int __devinit db1200_audio_probe(struct platform_device *pdev)
178 {
179         const struct platform_device_id *pid = platform_get_device_id(pdev);
180         struct snd_soc_card *card;
181
182         card = db1200_cards[pid->driver_data];
183         card->dev = &pdev->dev;
184         return snd_soc_register_card(card);
185 }
186
187 static int __devexit db1200_audio_remove(struct platform_device *pdev)
188 {
189         struct snd_soc_card *card = platform_get_drvdata(pdev);
190         snd_soc_unregister_card(card);
191         return 0;
192 }
193
194 static struct platform_driver db1200_audio_driver = {
195         .driver = {
196                 .name   = "db1200-ac97",
197                 .owner  = THIS_MODULE,
198                 .pm     = &snd_soc_pm_ops,
199         },
200         .id_table       = db1200_pids,
201         .probe          = db1200_audio_probe,
202         .remove         = __devexit_p(db1200_audio_remove),
203 };
204
205 static int __init db1200_audio_load(void)
206 {
207         return platform_driver_register(&db1200_audio_driver);
208 }
209
210 static void __exit db1200_audio_unload(void)
211 {
212         platform_driver_unregister(&db1200_audio_driver);
213 }
214
215 module_init(db1200_audio_load);
216 module_exit(db1200_audio_unload);
217
218 MODULE_LICENSE("GPL");
219 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
220 MODULE_AUTHOR("Manuel Lauss");