ASoC: Decouple DAPM from CODECs
[linux-2.6.git] / sound / soc / sh / sh7760-ac97.c
1 /*
2  * Generic AC97 sound support for SH7760
3  *
4  * (c) 2007 Manuel Lauss
5  *
6  * Licensed under the GPLv2.
7  */
8
9 #include <linux/module.h>
10 #include <linux/moduleparam.h>
11 #include <linux/platform_device.h>
12 #include <sound/core.h>
13 #include <sound/pcm.h>
14 #include <sound/soc.h>
15 #include <sound/soc-dapm.h>
16 #include <asm/io.h>
17
18 #define IPSEL 0xFE400034
19
20 /* platform specific structs can be declared here */
21 extern struct snd_soc_dai_driver sh4_hac_dai[2];
22 extern struct snd_soc_platform_driver sh7760_soc_platform;
23
24 static int machine_init(struct snd_soc_pcm_runtime *rtd)
25 {
26         snd_soc_dapm_sync(&rtd->codec->dapm);
27         return 0;
28 }
29
30 static struct snd_soc_dai_link sh7760_ac97_dai = {
31         .name = "AC97",
32         .stream_name = "AC97 HiFi",
33         .cpu_dai_name = "hac-dai.0",    /* HAC0 */
34         .codec_dai_name = "ac97-hifi",
35         .platform_name = "sh7760-pcm-audio",
36         .codec_name = "ac97-codec",
37         .init = machine_init,
38         .ops = NULL,
39 };
40
41 static struct snd_soc_card sh7760_ac97_soc_machine  = {
42         .name = "SH7760 AC97",
43         .dai_link = &sh7760_ac97_dai,
44         .num_links = 1,
45 };
46
47 static struct platform_device *sh7760_ac97_snd_device;
48
49 static int __init sh7760_ac97_init(void)
50 {
51         int ret;
52         unsigned short ipsel;
53
54         /* enable both AC97 controllers in pinmux reg */
55         ipsel = __raw_readw(IPSEL);
56         __raw_writew(ipsel | (3 << 10), IPSEL);
57
58         ret = -ENOMEM;
59         sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1);
60         if (!sh7760_ac97_snd_device)
61                 goto out;
62
63         platform_set_drvdata(sh7760_ac97_snd_device,
64                              &sh7760_ac97_soc_machine);
65         ret = platform_device_add(sh7760_ac97_snd_device);
66
67         if (ret)
68                 platform_device_put(sh7760_ac97_snd_device);
69
70 out:
71         return ret;
72 }
73
74 static void __exit sh7760_ac97_exit(void)
75 {
76         platform_device_unregister(sh7760_ac97_snd_device);
77 }
78
79 module_init(sh7760_ac97_init);
80 module_exit(sh7760_ac97_exit);
81
82 MODULE_LICENSE("GPL");
83 MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine");
84 MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");